Category: Infrastructure Resource Management

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Part II: How many IOPS can a HDD HHDD SSD do with VMware?

How many IOPS can a HDD HHDD SSD do with VMware?

server storage data infrastructure i/o iop hdd ssd trends

Updated 2/10/2018

This is the second post of a two-part series looking at storage performance, specifically in the context of drive or device (e.g. mediums) characteristics of How many IOPS can a HDD HHDD SSD do with VMware. In the first post the focus was around putting some context around drive or device performance with the second part looking at some workload characteristics (e.g. benchmarks).

A common question is how many IOPS (IO Operations Per Second) can a storage device or system do?

The answer is or should be it depends.

Here are some examples to give you some more insight.

For example, the following shows how IOPS vary by changing the percent of reads, writes, random and sequential for a 4K (4,096 bytes or 4 KBytes) IO size with each test step (4 minutes each).

IO Size for test
Workload Pattern of test
Avg. Resp (R+W) ms
Avg. IOP Sec (R+W)
Bandwidth KB Sec (R+W)
4KB
100% Seq 100% Read
0.0
29,736
118,944
4KB
60% Seq 100% Read
4.2
236
947
4KB
30% Seq 100% Read
7.1
140
563
4KB
0% Seq 100% Read
10.0
100
400
4KB
100% Seq 60% Read
3.4
293
1,174
4KB
60% Seq 60% Read
7.2
138
554
4KB
30% Seq 60% Read
9.1
109
439
4KB
0% Seq 60% Read
10.9
91
366
4KB
100% Seq 30% Read
5.9
168
675
4KB
60% Seq 30% Read
9.1
109
439
4KB
30% Seq 30% Read
10.7
93
373
4KB
0% Seq 30% Read
11.5
86
346
4KB
100% Seq 0% Read
8.4
118
474
4KB
60% Seq 0% Read
13.0
76
307
4KB
30% Seq 0% Read
11.6
86
344
4KB
0% Seq 0% Read
12.1
82
330

Dell/Western Digital (WD) 1TB 7200 RPM SATA HDD (Raw IO) thread count 1 4K IO size

In the above example the drive is a 1TB 7200 RPM 3.5 inch Dell (Western Digital) 3Gb SATA device doing raw (non file system) IO. Note the high IOP rate with 100 percent sequential reads and a small IO size which might be a result of locality of reference due to drive level cache or buffering.

Some drives have larger buffers than others from a couple to 16MB (or more) of DRAM that can be used for read ahead caching. Note that this level of cache is independent of a storage system, RAID adapter or controller or other forms and levels of buffering.

Does this mean you can expect or plan on getting those levels of performance?

I would not make that assumption, and thus this serves as an example of using metrics like these in the proper context.

Building off of the previous example, the following is using the same drive however with a 16K IO size.

IO Size for test
Workload Pattern of test
Avg. Resp (R+W) ms
Avg. IOP Sec (R+W)
Bandwidth KB Sec (R+W)
16KB
100% Seq 100% Read
0.1
7,658
122,537
16KB
60% Seq 100% Read
4.7
210
3,370
16KB
30% Seq 100% Read
7.7
130
2,080
16KB
0% Seq 100% Read
10.1
98
1,580
16KB
100% Seq 60% Read
3.5
282
4,522
16KB
60% Seq 60% Read
7.7
130
2,090
16KB
30% Seq 60% Read
9.3
107
1,715
16KB
0% Seq 60% Read
11.1
90
1,443
16KB
100% Seq 30% Read
6.0
165
2,644
16KB
60% Seq 30% Read
9.2
109
1,745
16KB
30% Seq 30% Read
11.0
90
1,450
16KB
0% Seq 30% Read
11.7
85
1,364
16KB
100% Seq 0% Read
8.5
117
1,874
16KB
60% Seq 0% Read
10.9
92
1,472
16KB
30% Seq 0% Read
11.8
84
1,353
16KB
0% Seq 0% Read
12.2
81
1,310

Dell/Western Digital (WD) 1TB 7200 RPM SATA HDD (Raw IO) thread count 1 16K IO size

The previous two examples are excerpts of a series of workload simulation tests (ok, you can call them benchmarks) that I have done to collect information, as well as try some different things out.

The following is an example of the summary for each test output that includes the IO size, workload pattern (reads, writes, random, sequential), duration for each workload step, totals for reads and writes, along with averages including IOP’s, bandwidth and latency or response time.

disk iops

Want to see more numbers, speeds and feeds, check out the following table which will be updated with extra results as they become available.

Device
Vendor
Make

Model

Form Factor
Capacity
Interface
RPM Speed
Raw
Test Result
HDD
HGST
Desktop
HK250-160
2.5
160GB
SATA
5.4K
HDD
Seagate
Mobile
ST2000LM003
2.5
2TB
SATA
5.4K
HDD
Fujitsu
Desktop
MHWZ160BH
2.5
160GB
SATA
7.2K
HDD
Seagate
Momentus
ST9160823AS
2.5
160GB
SATA
7.2K
HDD
Seagate
MomentusXT
ST95005620AS
2.5
500GB
SATA
7.2K(1)
HDD
Seagate
Barracuda
ST3500320AS
3.5
500GB
SATA
7.2K
HDD
WD/Dell
Enterprise
WD1003FBYX
3.5
1TB
SATA
7.2K
HDD
Seagate
Barracuda
ST3000DM01
3.5
3TB
SATA
7.2K
HDD
Seagate
Desktop
ST4000DM000
3.5
4TB
SATA
HDD
HDD
Seagate
Capacity
ST6000NM00
3.5
6TB
SATA
HDD
HDD
Seagate
Capacity
ST6000NM00
3.5
6TB
12GSAS
HDD
HDD
Seagate
Savio 10K.3
ST9300603SS
2.5
300GB
SAS
10K
HDD
Seagate
Cheetah
ST3146855SS
3.5
146GB
SAS
15K
HDD
Seagate
Savio 15K.2
ST9146852SS
2.5
146GB
SAS
15K
HDD
Seagate
Ent. 15K
ST600MP0003
2.5
600GB
SAS
15K
SSHD
Seagate
Ent. Turbo
ST600MX0004
2.5
600GB
SAS
SSHD
SSD
Samsung
840 PRo
MZ-7PD256
2.5
256GB
SATA
SSD
HDD
Seagate
600 SSD
ST480HM000
2.5
480GB
SATA
SSD
SSD
Seagate
1200 SSD
ST400FM0073
2.5
400GB
12GSAS
SSD

Performance characteristics 1 worker (thread count) for RAW IO (non-file system)

Note: (1) Seagate Momentus XT is a Hybrid Hard Disk Drive (HHDD) based on a 7.2K 2.5 HDD with SLC nand flash integrated for read buffer in addition to normal DRAM buffer. This model is a XT I (4GB SLC nand flash), may add an XT II (8GB SLC nand flash) at some future time.

As a starting point, these results are raw IO with file system based information to be added soon along with more devices. These results are for tests with one worker or thread count, other results will be added with such as 16 workers or thread counts to show how those differ.

The above results include all reads, all writes, mix of reads and writes, along with all random, sequential and mixed for each IO size. IO sizes include 4K, 8K, 16K, 32K, 64K, 128K, 256K, 512K, 1024K and 2048K. As with any workload simulation, benchmark or comparison test, take these results with a grain of salt as your mileage can and will vary. For example you will see some what I consider very high IO rates with sequential reads even without file system buffering. These results might be due to locality of reference of IO’s being resolved out of the drives DRAM cache (read ahead) which vary in size for different devices. Use the vendor model numbers in the table above to check the manufactures specs on drive DRAM and other attributes.

If you are used to seeing 4K or 8K and wonder why anybody would be interested in some of the larger sizes take a look at big fast data or cloud and object storage. For some of those applications 2048K may not seem all that big. Likewise if you are used to the larger sizes, there are still applications doing smaller sizes. Sorry for those who like 512 byte or smaller IO’s as they are not included. Note that for all of these unless indicated a 512 byte standard sector or drive format is used as opposed to emerging Advanced Format (AF) 4KB sector or block size. Watch for some more drive and device types to be added to the above, along with results for more workers or thread counts, along with file system and other scenarios.

Using VMware as part of a Server, Storage and IO (aka StorageIO) test platform

vmware vexpert

The above performance results were generated on Ubuntu 12.04 (since upgraded to 14.04 which was hosted on a VMware vSphere 5.1 (upgraded to 5.5U2) purchased version (you can get the ESXi free version here) with vCenter enabled system. I also have VMware workstation installed on some of my Windows-based laptops for doing preliminary testing of scripts and other activity prior to running them on the larger server-based VMware environment. Other VMware tools include vCenter Converter, vSphere Client and CLI. Note that other guest virtual machines (VMs) were idle during the tests (e.g. other guest VMs were quiet). You may experience different results if you ran Ubuntu native on a physical machine or with different adapters, processors and device configurations among many other variables (that was a disclaimer btw ;) ).

Storage I/O trends

All of the devices (HDD, HHDD, SSD’s including those not shown or published yet) were Raw Device Mapped (RDM) to the Ubuntu VM bypassing VMware file system.

Example of creating an RDM for local SAS or SATA direct attached device.

vmkfstools -z /vmfs/devices/disks/naa.600605b0005f125018e923064cc17e7c /vmfs/volumes/dat1/RDM_ST1500Z110S6M5.vmdk

The above uses the drives address (find by doing a ls -l /dev/disks via VMware shell command line) to then create a vmdk container stored in a dat. Note that the RDM being created does not actually store data in the .vmdk, it’s there for VMware management operations.

If you are not familiar with how to create a RDM of a local SAS or SATA device, check out this post to learn how.This is important to note in that while VMware was used as a platform to support the guest operating systems (e.g. Ubuntu or Windows), the real devices are not being mapped through or via VMware virtual drives.

vmware iops

The above shows examples of RDM SAS and SATA devices along with other VMware devices and dats. In the next figure is an example of a workload being run in the test environment.

vmware iops

One of the advantages of using VMware (or other hypervisor) with RDM’s is that I can quickly define via software commands where a device gets attached to different operating systems (e.g. the other aspect of software defined storage). This means that after a test run, I can quickly simply shutdown Ubuntu, remove the RDM device from that guests settings, move the device just tested to a Windows guest if needed and restart those VMs. All of that from where ever I happen to be working from without physically changing things or dealing with multi-boot or cabling issues.

Where To Learn More

View additional NAS, NVMe, SSD, NVM, SCM, Data Infrastructure and HDD related topics via the following links.

Additional learning experiences along with common questions (and answers), as well as tips can be found in Software Defined Data Infrastructure Essentials book.

Software Defined Data Infrastructure Essentials Book SDDC

What This All Means

So how many IOPs can a device do?

That depends, however have a look at the above information and results.

Check back from time to time here to see what is new or has been added including more drives, devices and other related themes.

Ok, nuff said, for now.

Gs

Greg Schulz – Microsoft MVP Cloud and Data Center Management, VMware vExpert 2010-2017 (vSAN and vCloud). Author of Software Defined Data Infrastructure Essentials (CRC Press), as well as Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press), Resilient Storage Networks (Elsevier) and twitter @storageio. Courteous comments are welcome for consideration. First published on https://storageioblog.com any reproduction in whole, in part, with changes to content, without source attribution under title or without permission is forbidden.

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO. All Rights Reserved. StorageIO is a registered Trade Mark (TM) of Server StorageIO.

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How many I/O iops can flash SSD or HDD do?

How many i/o iops can flash ssd or hdd do with vmware?

sddc data infrastructure Storage I/O ssd trends

Updated 2/10/2018

A common question I run across is how many I/O iopsS can flash SSD or HDD storage device or system do or give.

The answer is or should be it depends.

This is the first of a two-part series looking at storage performance, and in context specifically around drive or device (e.g. mediums) characteristics across HDD, HHDD and SSD that can be found in cloud, virtual, and legacy environments. In this first part the focus is around putting some context around drive or device performance with the second part looking at some workload characteristics (e.g. benchmarks).

What about cloud, tape summit resources, storage systems or appliance?

Lets leave those for a different discussion at another time.

Getting started

Part of my interest in tools, metrics that matter, measurements, analyst, forecasting ties back to having been a server, storage and IO performance and capacity planning analyst when I worked in IT. Another aspect ties back to also having been a sys admin as well as business applications developer when on the IT customer side of things. This was followed by switching over to the vendor world involved with among other things competitive positioning, customer design configuration, validation, simulation and benchmarking HDD and SSD based solutions (e.g. life before becoming an analyst and advisory consultant).

Btw, if you happen to be interested in learn more about server, storage and IO performance and capacity planning, check out my first book Resilient Storage Networks (Elsevier) that has a bit of information on it. There is also coverage of metrics and planning in my two other books The Green and Virtual Data Center (CRC Press) and Cloud and Virtual Data Storage Networking (CRC Press). I have some copies of Resilient Storage Networks available at a special reader or viewer rate (essentially shipping and handling). If interested drop me a note and can fill you in on the details.

There are many rules of thumb (RUT) when it comes to metrics that matter such as IOPS, some that are older while others may be guess or measured in different ways. However the answer is that it depends on many things ranging from if a standalone hard disk drive (HDD), Hybrid HDD (HHDD), Solid State Device (SSD) or if attached to a storage system, appliance, or RAID adapter card among others.

Taking a step back, the big picture

hdd image
Various HDD, HHDD and SSD’s

Server, storage and I/O performance and benchmark fundamentals

Even if just looking at a HDD, there are many variables ranging from the rotational speed or Revolutions Per Minute (RPM), interface including 1.5Gb, 3.0Gb, 6Gb or 12Gb SAS or SATA or 4Gb Fibre Channel. If simply using a RUT or number based on RPM can cause issues particular with 2.5 vs. 3.5 or enterprise and desktop. For example, some current generation 10K 2.5 HDD can deliver the same or better performance than an older generation 3.5 15K. Other drive factors (see this link for HDD fundamentals) including physical size such as 3.5 inch or 2.5 inch small form factor (SFF), enterprise or desktop or consumer, amount of drive level cache (DRAM). Space capacity of a drive can also have an impact such as if all or just a portion of a large or small capacity devices is used. Not to mention what the drive is attached to ranging from in internal SAS or SATA drive bay, USB port, or a HBA or RAID adapter card or in a storage system.

disk iops
HDD fundamentals

How about benchmark and performance for marketing or comparison tricks including delayed, deferred or asynchronous writes vs. synchronous or actually committed data to devices? Lets not forget about short stroking (only using a portion of a drive for better IOP’s) or even long stroking (to get better bandwidth leveraging spiral transfers) among others.

Almost forgot, there are also thick, standard, thin and ultra thin drives in 2.5 and 3.5 inch form factors. What’s the difference? The number of platters and read write heads. Look at the following image showing various thickness 2.5 inch drives that have various numbers of platters to increase space capacity in a given density. Want to take a wild guess as to which one has the most space capacity in a given footprint? Also want to guess which type I use for removable disk based archives along with for onsite disk based backup targets (compliments my offsite cloud backups)?

types of disks
Thick, thin and ultra thin devices

Beyond physical and configuration items, then there are logical configuration including the type of workload, large or small IOPS, random, sequential, reads, writes or mixed (various random, sequential, read, write, large and small IO). Other considerations include file system or raw device, number of workers or concurrent IO threads, size of the target storage space area to decide impact of any locality of reference or buffering. Some other items include how long the test or workload simulation ran for, was the device new or worn in before use among other items.

Tools and the performance toolbox

Then there are the various tools for generating IO’s or workloads along with recording metrics such as reads, writes, response time and other information. Some examples (mix of free or for fee) include Bonnie, Iometer, Iorate, IOzone, Vdbench, TPC, SPC, Microsoft ESRP, SPEC and netmist, Swifttest, Vmark, DVDstore and PCmark 7 among many others. Some are focused just on the storage system and IO path while others are application specific thus exercising servers, storage and IO paths.

performance tools
Server, storage and IO performance toolbox

Having used Iometer since the late 90s, it has its place and is popular given its ease of use. Iometer is also long in the tooth and has its limits including not much if any new development, never the less, I have it in the toolbox. I also have Futremark PCmark 7 (full version) which turns out has some interesting abilities to do more than exercise an entire Windows PC. For example PCmark can use a secondary drive for doing IO to.

PCmark can be handy for spinning up with VMware (or other tools) lots of virtual Windows systems pointing to a NAS or other shared storage device doing real world type activity. Something that could be handy for testing or stressing virtual desktop infrastructures (VDI) along with other storage systems, servers and solutions. I also have Vdbench among others tools in the toolbox including Iorate which was used to drive the workloads shown below.

What I look for in a tool are how extensible are the scripting capabilities to define various workloads along with capabilities of the test engine. A nice GUI is handy which makes Iometer popular and yes there are script capabilities with Iometer. That is also where Iometer is long in the tooth compared to some of the newer generation of tools that have more emphasis on extensibility vs. ease of use interfaces. This also assumes knowing what workloads to generate vs. simply kicking off some IOPs using default settings to see what happens.

Another handy tool is for recording what’s going on with a running system including IO’s, reads, writes, bandwidth or transfers, random and sequential among other things. This is where when needed I turn to something like HiMon from HyperIO, if you have not tried it, get in touch with Tom West over at HyperIO and tell him StorageIO sent you to get a demo or trial. HiMon is what I used for doing start, stop and boot among other testing being able to see IO’s at the Windows file system level (or below) including very early in the boot or shutdown phase.

Here is a link to some other things I did awhile back with HiMon to profile some Windows and VDI activity test profiling.

What’s the best tool or benchmark or workload generator?

The one that meets your needs, usually your applications or something as close as possible to it.

disk iops
Various 2.5 and 3.5 inch HDD, HHDD, SSD with different performance

Where To Learn More

View additional NAS, NVMe, SSD, NVM, SCM, Data Infrastructure and HDD related topics via the following links.

Additional learning experiences along with common questions (and answers), as well as tips can be found in Software Defined Data Infrastructure Essentials book.

Software Defined Data Infrastructure Essentials Book SDDC

What This All Means

That depends, however continue reading part II of this series to see some results for various types of drives and workloads.

Ok, nuff said, for now.

Gs

Greg Schulz – Microsoft MVP Cloud and Data Center Management, VMware vExpert 2010-2017 (vSAN and vCloud). Author of Software Defined Data Infrastructure Essentials (CRC Press), as well as Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press), Resilient Storage Networks (Elsevier) and twitter @storageio. Courteous comments are welcome for consideration. First published on https://storageioblog.com any reproduction in whole, in part, with changes to content, without source attribution under title or without permission is forbidden.

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO. All Rights Reserved. StorageIO is a registered Trade Mark (TM) of Server StorageIO.

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FusionIO (FIO) SSD vendor CEO out in a flash, whats up with that?

Storage I/O trends

FusionIO (FIO) who recently bought Nexgen to expand their reach from just a server centric to a more broad flash focus has seen their CEO and founder David Flynn race out the door. Not surprisingly, wall street who does not like to be surprised were surprised just a week or two after the most recent earning announcements reacted with a sell off of the FIO stock.

Here is the conundrum, those who were or are fans of Flynn, FIO and their approach along with server centric in your face approach may not be happy with this move.

On the other hand, those were not fans of Flynn, FIO and their approach of getting in your face of having others do so if you did not fall into their ranks may be happy with this move.

One question is was Flynn shown the door and left before it could hit his backside on the way out, or, did he see something and pulled the rip cord on his golden parachute, or some other or combination?

With the recent Nexgen acquisition which could be seen as a move by FIO (and their board of directors) to make more attractive either for an acquisition. Or, to transition from a server-side centric approach to a broader focus.

If the former, perhaps Flynn sees or saw the writing on the wall on who those suitors might or would be and decided to take his money now and run joining the serial entrepreneur ranks now.

Otoh, perhaps Flynn was just too focused with a singular focus and passion on the server space thus not able or interested in transitioning to a broader focus, which might also have involved eating a bit of crow. By eating a bit of crow, I mean given some of the in your face and it’s the FIO way or the highway approach of server only flash.

With Nexgen to be successful that would involve aligning more with the larger vendors and other startups who offer broader portfolios, something that was targeted and mud or fud thrown at by FIO, something that some CEOs or others can have challenges with. It should also be noted that FIO has brought in new employees with experience in broader marketers, not to mention industry veterans like John Spiers of Nexgen.

Candidly, I am not sure which of the above is the scenario, however, for those involved with FIO as employees, partners, customers and shareholders I hope some clarity arrives soon for them. Whether that clarity is via an acquisition (who is one of many questions), or a launching as FIO 2.0 or something similar with a focus on bring more capabilities to customers, increasing their touch points selling more products, hardware, software as opposed to leaving those for others (e.g. their competitors).

Ok, nuff said (for now)

Cheers gs

Greg Schulz – Author Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press) and Resilient Storage Networks (Elsevier)
twitter @storageio

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO LLC All Rights Reserved

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EMC ViPR software defined object storage part III

Storage I/O trends

This is part III in a series of posts pertaining to EMC ViPR software defined storage and object storage. You can read part I here and part II here.

EMCworld

More on the object opportunity

Other object access includes OpenStack storage part Swift, AWS S3 HTTP and REST API access. This also includes ViPR supporting EMC Atmos, VNX and Isilon arrays as southbound persistent storage in addition.

object storage
Object (and cloud) storage access example

EMC is claiming that over 250 VNX systems can be abstracted to support scaling with stability (performance, availability, capacity, economics) using ViPR. Third party storage will be supported along with software such as OpenStack Swift, Ceph and others running on commodity hardware. Note that EMC has some history with object storage and access including Centera and Atmos. Visit the micro site I have setup called www.objectstoragecenter.com and watch for more content to be updated and added there.

More on the ViPR control plane and controller

ViPR differs from some others in that it does not sit in the data path all the time (e.g. between application servers and storage systems or cloud services) to cut potential for bottlenecks.

ViPR architecture

Organizations that can use ViPR include enterprise, SMB, CSP or MSP and hosting sites. ViPR can be used in a control mode to leverage underlying storage systems, appliances and services intelligence and functionality. This means ViPR can be used to complement as oppose to treat southbound or target storage systems and services as dumb disks or JBOD.

On the other hand, ViPR will also have a suite of data services such as snapshot, replication, data migration, movement, tiering to add value for when those do not exist. Customers will be free to choose how they want to use and deploy ViPR. For example leveraging underlying storage functionality (e.g. lightweight model), or in a more familiar storage virtualization model heavy lifting model. In the heavy lifting model more work is done by the virtualization or abstraction software to create an added value, however can be a concern for bottlenecks depending how deployed.

Service categories

Software defined, storage hypervisor, virtual storage or storage virtualization?

Most storage virtualization, storage hypervisors and virtual storage solutions that are hardware or software based (e.g. software defined) implemented what is referred to as in band. With in band the storage virtualization software or hardware sits between the applications (northbound) and storage systems or services (southbound).

While this approach can be easier to carry out along with add value add services, it can also introduce scaling bottlenecks depending on implementations. Examples of in band storage virtualization includes Actifio, DataCore, EMC VMAX with third-party storage, HDS with third-party storage, IBM SVC (and their V7000 Storwize storage system based on it) and NetApp Vseries among others. An advantage of in band approaches is that there should not need to be any host or server-side software requirements and SAN transparency.

There is another approach called out-of-band that has been tried. However pure out-of-band requires a management system along with agents, drivers, shims, plugins or other software resident on host application servers.

fast path control path
Example of generic fast path control path model

ViPR takes a different approach, one that was seen a few years ago with EMC Invista called fast path, control path that for the most part stays out of the data path. While this is like out-of-band, there should not be a need for any host server-side (e.g. northbound) software. By being a fast path control path, the virtualization or abstraction and management functions stay out of the way for data being moved or work being done.

Hmm, kind of like how management should be, there to help when needed, out-of-the-way not causing overhead other times ;).

Is EMC the first (even with Invista) to leverage fast path control path?

Actually up until about a year or so ago, or shortly after HP acquired 3PAR they had a solution called Storage Virtualization Services Platform (SVPS) that was OEMd from LSI (e.g. StorAge). Unfortunately, HP decided to retire that as opposed to extend its capabilities for file and object access (northbound) as well as different southbound targets or destination services.

Whats this northbound and southbound stuff?

Simply put, think in terms of a vertical stack with host servers (PMs or VMs) on the top with applications (and hypervisors or other tools such as databases) on top of them (e.g. north).

software defined storage
Northbound servers, southbound storage systems and cloud services

Think of storage systems, appliances, cloud services or other target destinations on the bottom (or south). ViPR sits in between providing storage services and management to the northbound servers leveraging the southbound storage.

What host servers can VIPR support for serving storage?

VIPR is being designed to be server agnostic (e.g. virtual or physical), along with operating system agnostic. In addition VIPR is being positioned as capable of serving northbound (e.g. up to application servers) block, file or object as well as accessing southbound (e.g. targets) block, file and object storage systems, file systems or services.

Note that a difference between earlier similar solutions from EMC have been either block based (e.g. Invista, VPLEX, VMAX with third-party storage), or file based. Also note that this means VIPR is not just for VMware or virtual server environments and that it can exist in legacy, virtual or cloud environments.

ViPR image

Likewise VIPR is intended to be application agnostic supporting little data, big data, very big data ( VBD) along with Hadoop or other specialized processing. Note that while VIPR will support HDFS in addition to NFS and CIFS file based access, Hadoop will not be running on or in the VIPR controllers as that would live or run elsewhere.

How will VIPR be deployed and licensed?

EMC has indicated that the VIPR controller will be delivered as software that installs into a virtual appliance (e.g. VMware) running as a virtual machine (VM) guest. It is not clear when support will exist for other hypervisors (e.g. Microsoft Hyper-V, Citrix/XEN, KVM or if VMware vSphere with vCenter or simply on ESXi free version). As of the announcement pre briefing, EMC had not yet finalized pricing and licensing details. General availability is expected in the second half of calendar 2013.

Keep in mind that the VIPR controller (software) runs as a VM that can be hosted on a clustered hypervisor for HA. In addition, multiple VIPR controllers can exist in a cluster to further enhance HA.

Some questions to be addressed among others include:

  • How and where are IOs intercepted?
  • Who can have access to the APIs, what is the process, is there a developers program, SDK along with resources?
  • What network topologies are supported local and remote?
  • What happens when JBOD is used and no advanced data services exist?
  • What are the characteristics of the object access functionality?
  • What if any specific switches or data path devices and tools are needed?
  • How does a host server know to talk with its target and ViPR controller know when to intercept for handling?
  • Will SNIA CDMI be added and when as part of the object access and data services capabilities?
  • Are programmatic bindings available for the object access along with support for other APIs including IOS?
  • What are the performance characteristics including latency under load as well as during a failure or fault scenario?
  • How will EMC place Vplex and its caching model on a local and wide area basis vs. ViPR or will we see those two create some work together, if so, what will that be?

Bottom line (for now):

Good move for EMC, now let us see how they execute including driving adoption of their open APIs, something they have had success in the past with Centera and other solutions. Likewise, let us see what other storage vendors become supported or add support along with how pricing and licensing are rolled out. EMC will also have to articulate when and where to use ViPR vs. VPLEX along with other storage systems or management tools.

Additional related material:
Are you using or considering implementation of a storage hypervisor?
Cloud and Virtual Data Storage Networking (CRC)
Cloud conversations: Public, Private, Hybrid what about Community Clouds?
Cloud, virtualization, storage and networking in an election year
Does software cut or move place of vendor lock-in?
Don’t Use New Technologies in Old Ways
EMC VPLEX: Virtual Storage Redefined or Respun?
How many degrees separate you and your information?
Industry adoption vs. industry deployment, is there a difference?
Many faces of storage hypervisor, virtual storage or storage virtualization
People, Not Tech, Prevent IT Convergence
Resilient Storage Networks (Elsevier)
Server and Storage Virtualization Life beyond Consolidation
Should Everything Be Virtualized?
The Green and Virtual Data Center (CRC)
Two companies on parallel tracks moving like trains offset by time: EMC and NetApp
Unified storage systems showdown: NetApp FAS vs. EMC VNX
backup, restore, BC, DR and archiving
VMware buys virsto, what about storage hypervisor’s?
Who is responsible for vendor lockin?

Ok, nuff said (for now)

Cheers gs

Greg Schulz – Author Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press) and Resilient Storage Networks (Elsevier)
twitter @storageio

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO LLC All Rights Reserved

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EMC ViPR software defined object storage part II

Storage I/O trends

This is part II in a series of posts pertaining to EMC ViPR software defined storage and object storage. You can read part I here and part III here.

EMCworld

Some questions and discussion topics pertaining to ViPR:

Whom is ViPR for?

Organizations that need to scale with stability across EMC, third-party or open storage software stacks and commodity hardware. This applies to large and small enterprise, cloud service providers, managed service providers, virtual and cloud environments/

What this means for EMC hardware/platform/systems?

They can continue to be used as is, or work with ViPR or other deployment modes.

Does this mean EMC storage systems are nearing their end of life?

IMHO for the most part not yet, granted there will be some scenarios where new products will be used vs. others, or existing ones used in new ways for different things.

As has been the case for years if not decades, some products will survive, continue to evolve and find new roles, kind of like different data storage mediums (e.g. ssd, disk, tape, etc).

How does ViPR work?

ViPR functions as a control plane across the data and storage infrastructure supporting both north and southbound. northbound refers to use from or up to application servers (physical machines PM and virtual machines VMs). southbound refers target or destination storage systems. Storage systems can be traditional EMC or third-party (NetApp mentioned as part of first release), appliances, just a bunch of disks (JBOD) or cloud services.

Some general features and functions:

  • Provisioning and allocation (with automation)
  • Data and storage migration or tiering
  • Leverage scripts, templates and workbooks
  • Support service categories and catalogs
  • Discovery, registration of storage systems
  • Create of storage resource pools for host systems
  • Metering, measuring, reporting, charge or show back
  • Alerts, alarms and notification
  • Self-service portal for access and provisioning

ViPR data plane (adding data services and value when needed)

Another part is the data plane for implementing data services and access. For block and file when not needed, ViPR steps out-of-the-way leveraging the underlying storage systems or services.

object storage
Object storage access

When needed, the ViPR data plane can step in to add added services and functionality along with support object based access for little data and big data. For example, Hadoop Distributed File System (HDFS) services can support northbound analytic software applications running on servers accessing storage managed by ViPR.

Continue reading in part III of this series here including how ViPR works, who it is for and more analysis.

Ok, nuff said (for now)

Cheers gs

Greg Schulz – Author Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press) and Resilient Storage Networks (Elsevier)
twitter @storageio

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO LLC All Rights Reserved

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EMC ViPR virtual physical object and software defined storage (SDS)

Storage I/O trends

Introducing EMC ViPR

This is the first in a three part series, read part II here, and part III here.

During the recent EMCworld event in Las Vegas among other things, EMC announced ViPR (read announcement here) . Note that this ViPR is not the same EMC Viper project from a few years ago that was focused on data footprint reduction (DFR) including dedupe. ViPR has been in the works for a couple of years taking a step back rethinking how storage is can be used going forward.

EMCworld

ViPR is not a technology creation developed in a vacuum instead includes customer feedback, wants and needs. Its core themes are extensible, open and scalable.

EMCworld

On the other hand, ViPR addresses plenty of buzzword bingo themes including:

  • Agility, flexibility, multi-tenancy, orchestration
  • Virtual appliance and control plane
  • Data services and storage management
  • IT as a Service (ITaaS) and Infrastructure as a Service (IaaS)
  • Scaling with stability without compromise
  • Software defined storage
  • Public, private, hybrid cloud
  • Big data and little data
  • Block, file and object storage
  • Control plane and data plane
  • Storage hypervisor, virtualization and virtual storage
  • Heterogeneous (third-party) storage support
  • Open API and automation
  • Self-service portals, service catalogs

Buzzword bingo

Note that this is essentially announcing the ViPR product and program initiative with general availability slated for second half of 2013.

What is ViPR addressing?

IT and data infrastructure (server, storage, IO and networking hardware, software) challenges for traditional, virtual and cloud environments.

  • Data growth, after all, there is no such thing as an information recession with more data being generated, moved, processed, stored and retained for longer periods of time. Then again, people and data are both getting larger and living longer, for both little data and big data along with very big data.

  • Overhead and complexities associated with managing and using an expanding, homogenous (same vendor, perhaps different products) or heterogeneous (different vendors and products) data infrastructure across cloud, virtual and physical, legacy and emerging. This includes add, changes or moves, updates and upgrades, retirement and replacement along with disposition, not to mention protecting data in an expanding footprint.

    • road to cloud

  • Operations and service management, fault and alarm notification, resolution and remediation, rapid provisioning, removing complexity and cost of doing things vs. simply cutting cost and compromising service.

EMC ViPR

What is this software defined storage stuff?

There is the buzzword aspect, and then there is the solution and business opportunity.

First the buzzword aspect and bandwagon:

  • Software defined marketing (SDM) Leveraging software defined buzzwords.
  • Software defined data centers (SDDC) Leveraging software to derive more value from hardware while enabling agility, flexibility, and scalability and removing complexity. Think the Cloud and Virtual Data Center models including those from VMware among others.
  • Software defined networking (SDN) Rather than explain, simply look at Nicira that VMware bought in 2012.
  • Software defined storage (SDS) Storage software that is independent of any specific hardware, which might be a bit broad, however it is also narrower than saying anything involving software.
  • Software defined BS (SDBS) Something that usually happens as a result when marketers and others jump on a bandwagon, in this case software defined marketing.

Note that not everything involved with software defined is BS, only some of the marketing spins and overuse. The downside to the software defined marketing and SDBS is the usual reaction of skepticism, cynicism and dismissal, so let us leave the software defined discussion here for now.

software defined storage

An example of software defined storage can be storage virtualization, virtual storage and storage hypervisors that are hardware independent. Note that when I say hardware independent, that also means being able to support different vendors systems. Now if you want to have some fun with the software defined storage diehards or purist, tell them that all hardware needs software and all software needs hardware, even if virtual. Further hardware is defined by its software, however lets leave sleeping dogs lay where they rest (at least for now ;)).

Storage hypervisors were a 2012 popular buzzword bingo topic with plenty of industry adoption and some customer deployment. While 2012 saw plenty of SDM buzz including SDC, SDN 2013 is already seeing an increase including software defined servers, and software defined storage.

Regardless of what you view of software defined storage, storage hypervisor, storage virtualization and virtual storage is, the primary focus and goal should be addressing business and application needs. Unfortunately, some of the discussions or debates about what is or is not software defined and related themes lose focus of what should be the core goal of enabling business and applications.

Continue reading in part II of this series here including how ViPR works, who it is for and more analysis.

Ok, nuff said (for now)

Cheers gs

Greg Schulz – Author Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press) and Resilient Storage Networks (Elsevier)
twitter @storageio

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO LLC All Rights Reserved

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Spring SNW 2013, Storage Networking World Recap

Storage I/O trends

A couple of weeks ago I attended the spring 2013 Storage Networking World (SNW) in Orlando Florida. Talking with SNIA Chairman Wayne Adams and SNIA Director Leo Legar this was the 28th edition of the US SNW (two shows a year), plus the international ones. While I have not been to all 28 of the US SNWs, I have been to a couple of dozen SNWs in the US, Europe and Brazil going back to around 2001 as an attendee, main stage as well as breakout, and tutorial presenter (see here and here).

SNW image

For the spring 2013 SNW I was there for a mix of meetings, analyst briefings, attending the expo, doing some podcasts (see below), meeting with IT professionals (e.g. customers), VARs, vendors along with presenting three sessions (you can download them and others backup, restore, BC, DR and archiving).

Some of the buzz and themes heard included big data was a little topic at the event, while cloud was in the conversations, dedupe and data footprint reduction (DFR) do matter for some people and applications. However also a common theme with customers including Media and Entertainment (M&E) is that not everything can be duped thus other DFR approaches are needed.

There was some hype in and around hybrid storage along with storage hypervisors, which was also an entertaining panel discussion with HDS (Claus Mikkelsen aka @YoClaus), Datacore, IBM and Virstro.

The theme of that discussion seemed for the most part to gravitate towards realities of storage virtualization and less about the hypervisor hype. Some software defined marketing hype I heard is that it is impossible to spend more than a million dollars on a server today. I guess with the applicable caveats, qualifiers and context that could be true, however I also know some vendors and customers that would say otherwise.

Lunch
Lunchtime at SNW Spring 2013

Not surprisingly, there was an increase in vendors wanting to jump on the software defined and object storage bandwagons; however, customers tended to be curious at best, confused or concerned otherwise. Speaking of object storage, check out this podcast discussion with Cleversafe customer Justin Stottlemyer of Shutterfly and his 80PB environment.

In addition to Cleversafe, heard from Astute (if you need fast iSCSI storage check them out), Avere has a new NAS for dummies book out, Exablox a storage system startup with emphasis on scalability, ease of use and NAS access and hybrid storage Tegile. Also, check out SwifTest for generating application workloads and measurement that had their customer Go Daddy presenting at the event. A couple of others to keep an eye on include Raxco with their thin provision storage reclamation tool, and Infinio with their NAS acceleration for VMware software tools among others.

backup, restore, BC, DR and archiving

Here are the three presentations that I did while at the event:

Analyst Perspective: Increase Your Return on Innovation (The New ROI) With Data Management and Dedupe
There is no such thing as an information recession with more data to move, process and store, however there are economic challenges. Likewise, people and data are living longer and getting larger which requires leveraging data footprint reduction (DFR) techniques on a broader focus. It is time to move upstream finding and fixing things at the source to reduce the downstream impact of expanding data footprints, enabling more to be done with what you have.

Analyst Perspective: Metrics that Matter – Meritage of Data Management and Data Protection
Not everything in the data center or information factory is the same. This session recaps and builds off the morning increase your ROI with data footprint and data management session while setting the stage for the rethinking data protection (backup, BC and DR). Are you maximizing the return on innovation in how using new tools and technology in new ways, vs. using new tools in old ways? Also discussed performance capacity planning, forecasting analysis in cloud, virtual and physical environments. Without metrics that matter, you are flying blind, or perhaps missing opportunities to further drive your return on innovation and return on investment.

Analyst Perspective: Time to Rethink Data Protection Including BC and DR
When it comes to today’s data centers and information factories including physical, virtual and cloud, everything is not the same, so why treat business continuance (BC), disaster recovery (DR) and data protection in general the same? Simply using new tools, technologies and techniques in the same old ways is no longer a viable option. Since there is no such thing as a data or information recession, yet there are economic and budget challenges, along with new or changing threat risks, now is the time to review data protection including BC and DR including using new technologies in new ways.

You can view the complete SNW USA spring 2013 agenda here.

audio
Podcasts are also available on

Here are links to some podcasts from spring 2013 SNW:
Stottlemyer of Shutterfly and object storage discussion
Dave Demming talking tech education from SNW Spring 2013
Farley Flies into SNW Spring 2013
Talking with Tony DiCenzo at SNW Spring 2013
SNIA Spring 2013 update with Wayne Adams
SNIA’s new SPDEcon conference

Also, check out these podcasts from fall 2012 US and Europe SNWs:
Ben Woo on Big Data Buzzword Bingo and Business Benefits
Networking with Bruce Ravid and Bruce Rave
Industry trends and perspectives: Ray Lucchesi on Storage and SNW
Learning with Leo Leger of SNIA
Meeting up with Marty Foltyn of SNIA
Catching up with Quantum CTE David Chapa (Now with Evault)
Chatting with Karl Chen at SNW 2012
SNW 2012 Wayne’s World
SNW Podcast on Cloud Computing
HDS Claus Mikkelsen talking storage from SNW Fall 2012

Storage I/O trends

What this all means?

While busy, I liked this edition of SNW USA in that it had a great agenda with diversity and balance of speaker sessions (some tutorials, some vendors, some IT customers, and some analysts) vs. too many of one specific area.

In addition to the agenda and session length, the venue was good, big enough, however not spread out so much to cause loss of the buzz and energy of the event.

This SNW had some similar buzz or energy as early versions granted without the hype and fanfare of a startup industry or focus area (that would be some of the other events today)

Should SNW go to a once a year event?

While it would be nice to have a twice a year venue for convenience, practicality and budgets say once would be enough given all the other conferences and venues on the agenda (or that could be).

The next SNW USA will be October 15 to 17 2013 in Long Beach California, and Europe in Frankfurt Germany October 29-30 2013.

Thanks again to all the attendees, participants, vendor exhibitors, event organizers and SNIA, SNW/Computerworld staffs for another great event.

Ok, nuff said

Cheers
Gs

Greg Schulz – Author Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press) and Resilient Storage Networks (Elsevier)
twitter @storageio

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO LLC All Rights Reserved

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HDS Claus Mikkelsen talking storage from SNW Fall 2012

Now also available via

This is a new episode in the continuing StorageIO industry trends and perspectives pod cast series (you can view more episodes or shows along with other audio and video content here) as well as listening via iTunes or via your preferred means using this RSS feed (https://storageio.com/StorageIO_Podcast.xml)

Storage I/O cloud virtual and big data perspectives

In this episode from SNW Fall 2012 in Santa Clara, I am joined by my co-host Bruce Ravid (@BruceRave) of Ravid and Associates as we catch up with long time storage industry veteran Claus Mikkelsen (@YoClaus) and HDS Chief Scientist.

Bruce and Claus meet for the first time having been around and probably passed each other in the halls at various events, hence, its a small world, however there is always opportunity to meet somebody new. We also chat about SNW past and present, data storage, technologies, networking with people, travel and of course with Claus, touch on wine.

Note that Claus and me were apart of a consortium of people that collaborated on the original book The Resilient Enterprise released in spring of 2012 published by Veritas. Ok, nuff said.

Click here (right-click to download MP3 file) or on the microphone image to listen to the conversation with Claus Mikkelsen.

StorageIO podcast

Also available via

Watch (and listen) for more StorageIO industry trends and perspectives audio blog posts pod casts and other upcoming events. Also be sure to heck out other related pod casts, videos, posts, tips and industry commentary at StorageIO.com and StorageIOblog.com.

Enjoy this episode from SNW Fall 2013 with Claus Mikkelsen.

Ok, nuff said.

Cheers gs

Greg Schulz – Author Cloud and Virtual Data Storage Networking (CRC Press, 2011), The Green and Virtual Data Center (CRC Press, 2009), and Resilient Storage Networks (Elsevier, 2004)

twitter @storageio

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO LLC All Rights Reserved

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Conversation with Justin Stottlemyer of Shutterfly and object storage discussion

Now also available via

This is a new episode in the continuing StorageIO industry trends and perspectives pod cast series (you can view more episodes or shows along with other audio and video content here) as well as listening via iTunes or via your preferred means using this RSS feed (https://storageio.com/StorageIO_Podcast.xml)

StorageIO industry trends cloud, virtualization and big data

In this episode from SNW Spring 2013 in Orlando Florida, Bruce Ravid (@BruceRave) and me visit with Justin Stottlemyer (@JHStott) who is a Fellow and Storage Architect at Shutterfly.

Shutterfly image via shutterfly.com

Our conversation centers on how Justin and Shutterfly maximize their return on innovation (the new ROI) by using object storage along with other technology and techniques to create a resilient, scalable flexible data infrastructure.

Justin was at SNW presenting on overcoming object integration at Shutterfly where their data infrastructure consists of 80PB of storage to house over 30PB of user content data that continues to grow.

Example of how we have used Shutterfly to create photo books from vacations

For those not familiar, Shutterfly providers customers with free unlimited storage of their photos which can then be printed in coffee table type books such as the one shown in the above figure. My wife has used Shutterfly a few times to create photo books such as the one shown above in the image.

As you will hear Justin explain in the pod cast, photos get uploaded and ingested into their environment and then available for printing.

In addition to talking about object storage, private clouds, business continuance (BC) and disaster recovery, other topics include performance and capacity planning, maximizing return on innovation in addition to return on investment among other items.
Varies and managed by user interface

Listen in to hear how Justin and Shutterfly are currently managing 80PB of storage with over 30PB of user data that continues to grow.

Click here (right-click to download MP3 file) or on the microphone image to listen to the conversation with Justin and myself.

StorageIO podcast

Also available via

Watch (and listen) for more StorageIO industry trends and perspectives audio blog posts pod casts and other upcoming events. Also be sure to heck out other related pod casts, videos, posts, tips and industry commentary at StorageIO.com and StorageIOblog.com.

Enjoy this episode from SNW Spring 2013 with Justin Stottlemyer of Shutterfly.

Speaking of cloud and object storage, check out www.objectstoragecenter.com to view more related material.

Ok, nuff said.

Cheers gs

Greg Schulz – Author Cloud and Virtual Data Storage Networking (CRC Press, 2011), The Green and Virtual Data Center (CRC Press, 2009), and Resilient Storage Networks (Elsevier, 2004)

twitter @storageio

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO LLC All Rights Reserved

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Are your analyst, blogger, media or press requests being read?

Storage I/O cloud virtual and big data perspectives

Are you a marketing or public relations, press or analyst relations or social media expert and your email messages, notes, updates or requests get overlooked? Are you in the first paragraph or couple of sentences indicating who you are representing, what the info or request is about as well as what call to action you are looking for? If you are doing what is done in many of the requests for coverage or meetings or even announcements, you may be getting overlooked resulting in a missed opportunity, that is unless your goal is to simply gauge how many requests you send out.

Now do I have your attention?

Time for some tough love.

Almost every day (not as much on weekends) my email inbox gets filled up with notes from vendor marketing and public relations (PR) firms organizations telling about an announcement, requesting a briefing, giving heads up for something that will be occurring, pitching a story, idea or looking for coverage.

Being an analyst, author, advisory consultant, blogger among other roles, getting all of those emails as well as phone calls or other messages comes with the territory. However to get to the point or, the point of this post, most of those notes or messages I receive do not get to the point. More importantly I’m noticing on an increasing basis that many of the request for meetings, coverage, or introductions to announcements are not passing the quick scan test.

Storage I/O cloud virtual and big data perspectives

The trend that I have noticed for a couple of years now is that what is being announced or what the topic is or worse, who it is about gets lost in the paragraph or two or three or more of content. Thus for those who get lots of messages a day, get to the point, save the prose and sample article or content for later, unless that is what you are sending.

In other words, tell the reader who you are representing (e.g. the company), product or focus area, what the news is about, why relevant, and call to action. Skip the long intro citing marketing research or testimonials and what read like mini articles, not to mention mentioning other vendors that might cause a quick scan to confuse the message about them vs. you or your client.

The other day I received one of many announcements or briefing and meeting requests and this one stood out. In fact it stood out so much not for what was actually being announced or by whom or what it pertained to (all of which are relevant btw). It stood out because it did what most are not doing these days. It got to the point and in about the time required for a sip of coffee, I new what I needed to know as opposed to a trip to the coffee pot to refill to read the piece.

The note impressed me so much that I asked Melissa Kolodziej who sent it to me if I could repost her note here as an example of how to do it.

Subject: News: Attunity Enhances Big Data Replication Solution for Data Warehousing & Cloud Initiatives

Dear Greg,
Good morning. I wanted to share with you the exciting product news we announced regarding  Attunity Replicate 2.1. This latest release of our high-performance data delivery solution now features several new enhancements for data warehousing and the cloud. One key optimization is the addition of Attunity  TurboStream CDC, an innovative feature designed to significantly enhance delivery performance of changed data. This proprietary technology stages source data, consolidates changes, and delivers data in parallel to the target, optimizing change data capture (CDC) for high-volume and low-bandwidth scenarios. The enhanced Attunity Replicate solution is ideal for strategic initiatives including Big Data analytics and business intelligence typically seen in data warehouse and cloud environments.

Please review the release below and contact me at your earliest convenience (Tel. 781-730-4073) to set up a time to interview Matt Benati, Attunity’s VP of Global Marketing. He is available for briefings this week and next.  I would also appreciate hearing back from you if you plan to cover this news.

Thank you for your time and best regards,

Melissa Kolodziej
Director of Marketing Communications, Attunity
Tel. 781-730-4073
melissa.kolodziej@attunity.com

I thought about showing an example of what not to do, however for now, lets leave sleeping dogs lay where the rest. Although I will say make sure you put a name in the name field for your email blasts vs. receiving Dear <Name_Goes_Here> or using the wrong name. The wrong name I’m used to however I may respond and have some fun at your expense so that you don’t forget ;).

Kudos and nice job Melissa for doing what should be common knowledge or basic best practices however what I now see as the exception vs. the norm from many public relations firms or vendors.

Ok, nuff said (for now).

Cheers gs

Greg Schulz – Author Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press) and Resilient Storage Networks (Elsevier)
twitter @storageio

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO LLC All Rights Reserved

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Some things keep going around, Seagate ships 2 Billion HDD’s

Seagate

Seagate (@Seagate) announced today that it reached a milestone of having shipped 2 Billion hard disk drives (HDD’s), something that is round stores data that keeps growing. As part of their announcement, Seagate has a good info graphics and facts page here going back to 1979 when it was founded as Shugart Technology (read about Al Shugart here).

By coincidence, just a few years before Seagate was founded, McDonalds (who makes round things as well) announced that they had served over 20 billion hamburgers. Thus McDonald feeds the appetites of consumers hungry for a quick meal while Seagate feeds the information demands, perhaps while stopping for a quick breakfast, lunch, coffee or dinner. Speaking of things that go around (like HDD’s), check out what NAS, NASA and NASCAR have in common all of which are also involved in big data as well as little data.

Storage I/O industry trends image

Both Seagate and McDonalds have also expanded their menu of offerings over the years maintaining their core products while expanding into new and adjacent areas given different appetites and preferences. After all, in the data cloud, virtual or physical data center also known as an information factory not everything is the same either.

Cloud

Granted Seagate is helping to feed or fuel the internet along with traditional hungry demand for data, not to mention people and data are living longer, as well as getting larger.

Cloud, virtual server, big data and little data storage I/O image

In the case of Seagate and other driver manufactures of which have consolidated down to three (Toshiba, Seagate and Western Digital), the physical devices are getting smaller, however capacities are increasing.

Storage I/O

Why the continued growth? As mentioned data is getting larger (big data and little data) and living longer, there is also no such thing as a data or information recession. Consequently data storage is an important pillar or part of cloud, virtual and traditional information services with HDD’s remaining popular along side nand flash solid state devices (SSD).

The Seagate info graphic page can be seen here and is a good walk back in time for some, perhaps a history lesson for others. It goes back to the Sony Walkman which some might remember, launch of the PC and Apple Macintosh in the 80s, Linux and the web in the 90s and moving forward from then to now.

HDD
A few of my HDD’s, different types for various tasks.

If you think or believe HDD’s are a dead technology, take a few minutes to view the info graphic to update your insight on what has been an important aspect of computing and remains popular in cloud environments. Otoh, if you believe that HDD’s are still a core piece of computing and will remain so including in roles in the future, have a look to see how things have progressed, maybe some Dejavu.

Oh, for those who are thinking that the HDD did not begin in 1979, you are absolutely correct as it dates back into the 1950s. Here is a link to something that I wrote a few years ago on the HDD’s 50th birthday and looks like it will easily celebrate 60 and beyond.

Additional related reading:
In the data center or information factory, not everything is the same
Hard Disk Drives (HDDs) for virtual and physical environments
Happy 50th, hard drive. But will you make it to 60?
Seagate to say goodbye to Cayman Islands, Hello Ireland
More Storage IO momentus HHDD and SSD moments part II
In the data center or information factory, not everything is the same
The Human Face of Big Data, a Book Review

Congratulations to Seagate, now how long until the 3 billion served, excuse me, shipped HDD occurs?

Disclosure: Its been almost a month since my last visit to McDonalds or buying another HDD (or SSD) from Amazon.com.

Ok, nuff said

Cheers gs

Greg Schulz – Author Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press) and Resilient Storage Networks (Elsevier)
twitter @storageio

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO LLC All Rights Reserved

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Part II: XtremIO, XtremSW and XtremSF EMC flash ssd portfolio redefined

Part one of this two-part post provided a summary of today’s EMC (@EMCflash) announcement around XtremIO and renaming VFCache to XtremSF and associated software as XtremSW.

Storage I/O industry trends and perspectives

Synopsis of announcement

  • Product rollout and selective availability of the new all flash SSD array XtremIO
  • Rename server-side PCIe ssd flash cards from VFCache to XtremSF
  • New XtremSF models including enhanced multi-level cell (eMLC) with larger capacities
  • Rename VFCache caching software to XtremSW (enables cache mode vs. target mode)

Now lets take a closer look at what was announced along with what it means in terms of Industry Trends and Perspectives.

XtremIO  has been in customer beta for some time and now those along with some other early customers are able to acquire the product. In addition, EMC is opening up XtremIO to more prospective customers (Directed Availability) who have requirements or needs that line up with the products target market capabilities.

Storage I/O industry trends and perspectives

What this means is that XtremIO is not being simply put out into the general product population for broad distribution. Instead, it is being put into a controlled release (Directed Availability) to help customers, partners and EMC sales decide where best to use it and thus risk revenue prevention in other areas. The criteria or target opportunity (at least initially) are little-data applications including OLTP, server virtualization (where aggregation can cause aggravation) along with virtual desktop or VDI. In other words, many of the traditional or legacy IOP focused SSD opportunities.

In addition to XtremIO EMC has renamed their VFCache PCIe flash SSD cards (Launched February 2012) to XtremSF along with new models with both SLC and MLC nand flash. Also as part of today’s announcement EMC is renaming the cache software for XtremSF (e.g. VFCache) to be known as XtremSW. Now if that did not prompt the question of if you can now buy XtremSF as a target mode only card without the cache software the answer is yes.

What is XtremIO?

It is a new all flash SSD storage array. XtremIO is a Cluster, grid or collection of nodes called bricks with linear performance scaling providing block based all flash SSD storage. Data services consists of data footprint reduction (DFR) including inline global (across all nodes or bricks) dedupe on 4Kbyte chunks along with thin provisioning. Global dedupe is done on ingest using a combination of flash buffered meta-data (tables, index or dictionary) of what has been seen before along with multi-threaded software to leverage multi-core processors. Using the global dedupe at ingest; only new unique data is saved based on 4 Kbyte chunks.

Performance per EMC scales from one single node to more second node or a fourth node. Note: architecturally more nodes can be added with EMC indicating added models will be available in the future.

In addition to DFR, other data services including writable snapshots, and auto-load balancing when new bricks are added. Note that in a normal running XtremIO, data is automatically spread across the nodes for both performance and resiliency. Data only needs to be moved or load-balanced in the background when new bricks are added. Instant copy snapshots are supported along with writable snapshots. Currently replication is done via external EMC products such as VPLEX or RecoverPoint with statement of directions (SOD) for future enhancements.

Additional attributes of XtremIO include:

  • Each node or brick (X-Brick) has up to 16 (16 was Gen 1 hardware platform, it is now 25 SSD drives)
  • All bricks are involved in IO and storage processing
  • Positioned by EMC as Software Defined (no proprietary hardware)
  • Four x 8Gb Fibre Channel (8GFC) and four x 10Gb Ethernet (iSCSI) per brick
  • Bricks communicate with each other via a separate interconnect network or fabric
  • Bricks have redundant processors (think of as controllers) with multiple sockets and cores
  • 4KB random read IOP’s scale from 250K (one brick), 500K (two bricks) and 1 Million (four bricks). For 4K random write IOPS, the numbers are 100K, 200K and 400K across one, two and four brick configurations with low latency and all data services running (EMC supplied numbers)

In addition to 4K being a commonly used or referred to IO size, it is also the same size as the new industry standard Advanced Format (AF). Today the standard storage block, page or sector size is 512 bytes however AF moves that to a larger 4,096 bytes (e.g. 4KB) to closer align with larger IO sizes. Note that many HDD’s and some SSD’s today support AF and provide 512 byte emulation modes for compatibility.

What is XtremSF?

VFCache is renamed XtremSF with new models using eMLC as companion to existing SLC PCIe  cards and blade server mezzanine cards. EMC is emphasizing performance metrics that matter including IOPs that are relative to customer workloads such as 4K, 8K or larger with mix of reads and writes with low latency. In addition to IOPs with latency, size along with reads or writes for little data, EMC is also showing bandwidth or throughput numbers for big-data and big-bandwidth.

Model
Capacity
Read Transfer GB/sec
Write Transfer GB/sec
Random 4K Read (IOPS)
Random 4K Write (IOPS)

Random 4K Mixed ( IOPS)

Read latency (usec)
Write latency (usec)
2200 (eMLC)
2.2 TB
2.47
1.1
343K
105K
206K
87us
30us
700 (SLC)
700 GB
2.9
1.8
712K
197K
411K
50us
13us
550 (eMLC)
550 GB
1.36
512 MB/s
174K
49K
96K
87us
37us
350 (SLC)
350 GB
2.9
756 MB/s
715K
95K
267K
50us
13us

Sampling of SLC and eMLC XtremSF PCIe SSD cards performance characteristics (via EMC) including latency measured in microseconds). Note performance differences due to some cards being based on SLC and others on eMLC.

Additional attributes, some new and some previously announced include:

  • 8X  PCIe bandwidth lanes for performance
  • No IO impact to applications during garbage collection
  • Supports multi-core processor workloads with parallel design
  • Low CPU overhead by off-loading functions to PCIe card
  • Half-height, half-length PCIe form factor
  • Wear-leveling for nand flash program/erase (P/E) cycle duration
Other storage, server and systems vendors including Cisco, Dell, HP, IBM, NetApp and Oracle offer various PCIe nand flash SSD cards either as target, cache or mixed modes. Manufactures or suppliers of PCIe nand flash SSD cache and target cards include among others FusionIO, Intel, LSI, Micron , OCZ and Virident (who is partnered with Seagate).

What is XtremSW?

Server side flash software (not to be confused with FAST) for using XtremSF as a tier 0 (server-side) ssd cache or target. In target mode the XtremSF functions as a high performance persistent local dedicated direct attached storage (DAS) device. Cache mode enables frequently accessed data to be kept close to the applications off-loading underlying storage systems to be more effectively used. The XtremSW complements back-end storage systems for data protection and persistence along with investment protection of those assets.

Storage I/O industry trends and perspectives

What this all means

SSD is in your future, question is where, when and with what.

Why not just use SSD (DRAM and or nand flash) everywhere?

Keep in mind that in the data center (traditional, virtual or cloud) everything is not the same. Thus the simple answer is that there is not enough of it available at a low enough price point (think closer to Hard Disk Drives (HDD) costs) to fit into customers budget. Sure SSDs provide better performance and productivity benefits, however while there is no such thing as a data or information recession, there are budget constraints.

Another reason why SSD cant simply be used everywhere are physical (and logical) constraints such as amount of memory a server can directly access, or current DDR3 DIMMs (this could change with DDR4 according to Micron) can only address and work with DRAM, PCIe bus physical slot space, operating and hypervisor addressing limits among others.

If SSD (DRAM and or nand flash) were priced were priced low enough (e.g. much closer to HDDs) and available SSD including both DRAM and nand flash (SLC, MLC, eMLC, TLC, etc) along with emerging Phase Change Memory (PCM) are at the convergence of traditional memory and data storage. While some storage (or server) professionals may not agree, storage is an extension of memory and thus part of the traditional server and storage memory hierarchy shown below.

Storage I/O and cache locality of reference

This brings up the locality of reference topic also shown in the following figure where the best IO is the one that does not have to be done. The second best is the one that can be done closest to application to a given level of service. Locality of reference which is important for servers and storage systems including caching refers to how close frequently accessed data is to where it is needed. For some applications this means as much DRAM main memory in a server as possible either clustered, with battery backup or other data persistency protection including onboard HDD or SSD (e.g. towards the top of the hierarchy).

nand flash SSD and storage I/O location options

There are other applications where localized SSD (DRAM or nand flash) are a benefit to compliment main memory or as a persistent cache and target such as PCIe cards or SAS and SATA drives. Further down the stack and for housing larger amounts of storage with performance (reads or writes, random or sequential) along with data services is where all SSD and hybrid (mix of SSD and HDD) fit. Even further down the stack and for a broader segment is where cloud storage services based on SSD such as those from Rackspace (Cloud Block Storage with SSD) and Amazon (provisioned IOPS for EBS) have a play. Lets not forget about SSD in laptop, tablets and workstations, for example I have a Samsung model 830 in my Lenvo X1.

Storage I/O industry trends and perspectives

Some general industry trends include:

  • SSD is like real estate, location can matter, a little can go a long way
  • SSD media options include DRAM and nand flash (SLC, MLC, eMLC, TLC)
  • Portfolios broadening with different products for various needs
  • SSD functionality in servers, appliances, storage systems and cloud services
  • All flash SSD arrays have not killed off all traditional or hybrid storage arrays
  • Focus expanding from Just a Bunch Of SSD (JBOS) to enterprise like functionality
  • Software needs hardware, hardware needs software, the two work better together
  • Comparing meaningful metrics that matter vs. industry marketing metrics

Related items about nand flash, SSD and metrics related themes:

Storage I/O industry trends and perspectives

Some additional thoughts and perspectives

Does this mean traditional storage arrays are now dead?

IMHO, no, there will be some cannibalization of existing storage systems by XtremIO within EMC customers or prospects if not managed, as well as via those from others. Keep in mind that recently EMC announced enhancements to their VMAX including entry-level options for service providers. Some new opportunities opened up will be where traditional all SSD (flash or dram) systems have historically had success.

Traditional SSD and new dedicated SSD systems include Texas Memory Systems (TMS) bought by IBM in 2012, and the recently announced NetApp EF540 (and future FlashRay) along with startups Solidfire, Violin, Whiptail among others. There will be environments where XtremIO may take care of all storage needs for a customer or specific application or piece of it. Then there will be other situations where XtremIO will go-exist with EMC or other vendor’s storage solutions as part of a data infrastructure.

Storage I/O industry trends and perspectives

Who will EMC be competing against with XtremIO?

Certainly the startups or smaller players such as Violin, Whiptail, Purestorage, Solidfire along with IBM/TMS and NetApp EF540 (eventually FlashRay as well) among others.

There will also be some competition with other hybrid storage array vendors that have a mix of HDD and SSD. XtremIO will also compete in some situations on its own vs. other PCIe flash target and cache cards such as FusionIO, however for the most part those will up against XtremSF and XtremSW.

Why the slow or “Directed Availability” rollout?

Why not? By taking a controlled rollout selecting and qualifying customers for XtremIO, EMC gets to manage how the product goes out into production and control how it is used to increase chances of success. Unlike a startup that would be forced to try to put their new technology anywhere, EMC has the luxury of selecting where it goes, not to mention needing to avoid introducing a revenue prevention play for its other products.

Overall, I give an Atta boy and Atta girl to the EMC crew for a Product Defined Announcement (PDA) extending their flash portfolio to complement their different customers and prospects various environment needs. Now watch EMC, NetApp and others step up their flash dance moves to see who will out flash the others in the eXtreme flash games, not to mention emerging software defined marketing moves (SDMM) ;) .

Ok, nuff said.

Cheers Gs

Greg Schulz – Author Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press) and Resilient Storage Networks (Elsevier)
twitter @storageio

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO LLC All Rights Reserved

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XtremIO, XtremSW and XtremSF EMC flash ssd portfolio redefined

EMC (@EMCflash) today announced some new, enhanced, renamed and a rebrand flash solid-state device (SSD) storage portfolio around theme of XtremIO. XtremIO was the startup company with a new all flash SSD storage array that EMC announced they were buying in May 2012. Since that announcement, Project “X” has been used when referring to the product now known as XtremIO (e.g. all flash new storage array).

Synopsis of announcement

  • Product rollout and selective availability of the new all flash SSD array XtremIO
  • Rename server-side PCIe ssd flash cards from VFCache to XtremSF
  • New XtremSF models including enhanced multi-level cell (eMLC) with larger capacities
  • Rename VFCache caching software to XtremSW (enables cache mode vs. target mode)

What was previously announced:

  • Buying the company XtremeIO
  • Productizing  the new all flash array as part of Project “X”
  • It would formally announce the new product in 2013 (which is now)
  • VFCache and later enhancements during 2012.

Storage I/O industry trends and perspectives

Overall, I give an Atta boy and Atta girl to the EMC crew for a Product Defined Announcement (PDA) extending their flash portfolio to complement their different customers and prospects various environment needs. Now let us sit back and watch EMC, NetApp and others step up their flash dance moves to see who will out flash the others in the eXtreme flash games, including software defined storage, software defined data centers, software defined flash, and software defined cache.

Related items about nand flash and metrics related themes:

Read more about XtremIO, XtremSF, XtremSW and flash related items here in part II of this post.

Ok, nuff said (for now).

Cheers gs

Greg Schulz – Author Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press) and Resilient Storage Networks (Elsevier)
twitter @storageio

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO LLC All Rights Reserved

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February 2013 Server and StorageIO Update Newsletter

StorageIO News Letter Image
February 2013 News letter

Welcome to the February 2013 edition of the StorageIO Update news letter including a new format and added content.

You can get access to this news letter via various social media venues (some are shown below) in addition to StorageIO web sites and subscriptions.

Click on the following links to view the February 2013 edition as (HTML sent via Email) version, or PDF versions.

Visit the news letter page to view previous editions of the StorageIO Update.

You can subscribe to the news letter by clicking here.

Enjoy this edition of the StorageIO Update news letter, let me know your comments and feedback.

Nuff said for now

Cheers
Gs

Greg Schulz – Author Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press) and Resilient Storage Networks (Elsevier)
twitter @storageio

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO LLC All Rights Reserved