Education Archives

September 6, 2011March 7, 2022

StorageIO going Dutch again: October 2011 Seminar for storage professionals

Greg Schulz of StorageIO in conjunction with or dutch partner Brouwer Storage Consultancy will be presenting a two day workshop seminar for IT storage, virtualization, and networking professionals Monday 3rd and Tuesday 4th of October 2011 at Ampt van Nijkerk Netherlands.

Brouwer Storage Consultancey

This two day interactive education seminar for storage professionals will focus on current data and storage networking trends, technology and business challenges along with available technologies and solutions. During the seminar learn what technologies and management techniques are available, how different vendors solutions compare and what to use when and where. This seminar digs into the various IT tools, techniques, technologies and best practices for enabling an efficient, effective, flexible, scalable and resilient data infrastructure.

The format of this two seminar will be a mix of presentation and interactive discussion allowing attendees plenty of time to discuss among themselves and with seminar presenters. Attendees will gain insight into how to compare and contrast various technologies and solutions in addition to identifying and aligning those solutions to their specific issues, challenges and requirements.

Major themes that will be discussed include:

Who is doing what with various storage solutions and tools
Is RAID still relevant for today and tomorrow
Are hard disk drives and tape finally dead at the hands of SSD and clouds
What am I routinely hearing, seeing or being asked to comment on
Enabling storage optimization, efficiency and effectiveness (performance and capacity)
Opportunities for leveraging various technologies, techniques,trends
Supporting virtual servers including re-architecting data protection
How to modernize data protection (backup/restore, BC, DR, replication, snapshots)
Data footprint reduction (DFR) including archive, compression and dedupe
Clarifying cloud confusion, don’t be scared, however look before you leap
Big data, big bandwidth and virtual desktop infrastructures (VDI)

In addition this two day seminar will look at what are some new and improved technologies and techniques, who is doing what along with discussions around industry and vendor activity including mergers and acquisitions. In addition to seminar handout materials, attendees will also receive a copy Cloud and Virtual Data Storage Networking (CRC Press) by Greg Schulz that looks at enabling efficient, optimized and effective information services delivery across cloud, virtual and traditional environments.

Buzzwords and topic themes to be discussed among others include E2E, FCoE and DCB, CNAs, SAS, I/O virtualization, server and storage virtualization, public and private cloud, Dynamic Infrastructures, VDI, RAID and advanced data protection options, SSD, flash, SAN, DAS and NAS, object storage, big data and big bandwidth, backup, BC, DR, application optimized or aware storage, open storage, scale out storage solutions, federated management, metrics and measurements, performance and capacity, data movement and migration, storage tiering, data protection modernization, SRA and SRM, data footprint reduction (archive, compress, dedupe), unified and multi-protocol storage, solution bundle and stacks.

For more information or to register contact Brouwer Storage Consultancy

Brouwer Storage Consultancy
Olevoortseweg 43
3861 MH Nijkerk
The Netherlands
Telephone: +31-33-246-6825
Cell: +31-652-601-309
Fax: +31-33-245-8956
Email: info@brouwerconsultancy.com
Web: www.brouwerconsultancy.com

Brouwer Storage Consultancey

Learn about other events involving Greg Schulz and StorageIO at www.storageio.com/events

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), Resilient Storage Networks (Elsevier)
twitter @storageio

August 24, 2011March 7, 2022

Cloud and Virtual Data Storage Networking book VMworld 2011 debut

Following up from a previous preview post about my new book Cloud and Virtual Data Storage Networking (CRC Press) for those for those attending VMworld 2011 in Las Vegas Monday August 29 through Thursday September 1st 2011, you can pick up your copy at the VMworld book store.

Book signing at VMworld 2011

On Tuesday August 30 at 1PM local time, I will be at the VMworld store signing books. Stop by the book store and say hello, pickup your copy of Cloud and Virtual Data Storage Networking (CRC Press). Also check out the other new releases by fellow vExpert authors during the event. I have also heard rumors that some exhibitors among others will be doing drawings, so keep an eye out in the expo hall and go visit those showing copies of my new book.

The VMworld book store hours are:

Monday 8:30am to 7:30pm
Tuesday 8:30am to 6:00pm
Wednesday 8:30am to 8:00pm
Thursday 8:00am to 2:00pm

For those not attending VMworld 2011, you can order your copy from different venues including Amazon.com, Barnes and Noble, DigitalGuru and CRC Press among others.

Learn more about Cloud and Virtual Data Storage Networking (CRC Press) at https://storageioblog.com/book3

Look forward to seeing you at the various VMworld events in Las Vegas as well as at other upcoming venues.

Ok, nuff said for now.

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

August 24, 2011March 7, 2022

2011 Summer momentus hybrid hard disk drive (HHDD) moment

This is the fourth in a series of posts (others are here, here and here) that I have been doing for over a year now taking a moment now and then to share some of my experiences with using hybrid hard disk drives (HHDD) along side my hard disk drives (HDD) and solid state drives (SSD).

It has been a several months now since applying the latest firmware (SD25) which resulted in even better stability that was further enhanced when upgrading a few months ago to Windows 7 on all systems with the Seagate Momentus XT HHDD installed in them. One additional older system was recently upgraded from a slower, lower capacity 3.5 inch form factor SATA HDD to a physically smaller 2.5 inch HHDD. The net result is that system now boots in a fraction of the time, shuts down faster, work on it is much more productive and capacity was increased by three and half times.

Why use an HHDD when you could get an SSD?

With flash SSD devices continuing to become more affordable for a given price capacity point, why did I not simply install some of those devices instead of using the HHDDs?

With the money saved from buying the 500GB Momentus XT on Amazon.com (under $100 USD) vs. buying a smaller capacity SSD, I was also able to double the amount of DRAM in that system furthering its useful life plus buying some time to decide what to replace it with while having extra funds for other projects.

Sure I would like to have more and larger capacity SSDs to go along with those I already have, however there is balancing budget with needs and improving productivity (needs vs. wants).

To expand more on why the HHDD at this time vs. SSD, want some more SSD devices to coexist with those I already have and use for different functions. Looking to stretch my budget further, the HHDDs are a great balance of being almost and in some cases as fast as SSDs while at the cost of a high capacity HDD. In other words Im getting the best of both worlds which is a 7,200 RPM 2.5 inch 500GB HDD (e.g. for space capacity) that has 4GB of single layer cell (SLC) flash (e.g. SSD) and 32MB of DRAM as buffers (for read and write performance) to help speed up read and write operations.

Given for what Im using them for, I do not need the consistent higher performance of an SSD across all of my data which brings up the other benefit, Im able to retain more data on the device as a buffer or cache instead of having to go to a NAS or other storage repository to get it. Even though the amount of data being stored on the HHDD is increasing, not all of it gets backed up locally or to my cloud provider as there is already a copy(s) elsewhere. Instead, a small subset of data that is changing or very important gets routinely protected locally and remotely to the cloud enabling easier and faster restores when needed. Now if you have a large budget or someone is willing to buy or give you one, sure, go ahead and get one of the high capacity SSDs (preferably SLC based if concerned about endurance) however there are some good MLC ones out there as well.

Step back a bit, what is an HHDD?

Hybrid hard disk drives (HHDDs) such as the Seagate Momentus XT are, as their name implies, a combination of large- to medium-capacity HDDs with FLASH SSDs. The result is a mix of performance and capacity in a cost effective footprint. HHDDs have not seen much penetration in the enterprise space and may not see much more, given how many vendors are investing in the firmware and associated software technology to achieve hybrid results using a mix of SSDs and high capacity disk drives along with the lack of awarness that they exist.

Where HHDDs could have some additional traction is in secondary or near-line solutions that need some performance enhancements while having a large amount of capacity in a cost-effective footprint. For now, HHDDs are appearing mainly in desktops, laptops, and workstations that need lots of capacity with some performance but without the high price of SSDs. Before I installed the HHDDs in my laptops, I initially used one as a backup and data movement device, and I found that large, gigabyte-sized files could be transferred as fast as with SSDs and much faster than via my WiFi based network and NAS. The easiest way to characterize where HHDDs fit is where you want an SSD for performance, but your applications do not always need speed and you need a large amount of storage capacity at an affordable price.

SSDs are part of the future, however HDDs have a lot of life in them including increased capacities, both are best used where their strengths can be maximized, thus HHDDs are a great compliment or stepping stone for some applications. Note, Seagate recently announced that they have shipped over one million HHDDs in just over a years time.

I do find it interesting though when I hear from those who claim that the HDD is dead and that SSD is the future yet they do not have SSDs in their systems let alone do they have or talk about HHDDs, hmmmm.

Ok, nuff said for now.

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

August 4, 2011November 26, 2023

Industry trend: People plus data are aging and living longer

Lets face it, people and information are living longer and thus there are more of each along with a strong interdependency by both.

People living and data being retained longer should not be a surprise, take a step back and look at the bigger picture. There is no such thing as an information recession with more data being generated, processed, moved and stored for longer periods of time not to mention that a data object is also getting larger.

Industry trend and performance

By data objects getting larger, think about a digital photo taken on a typical camera ten years ago which whose resolution was lower and thus its file size would have been measured in kilo bytes (thousands). Today megapixel resolutions are common from cell phones, smart phones, PDAs and even larger with more robust digital and high definition (HD) still and video cameras. This means that a photo of the same object that resulted in a file of hundreds of Kbytes ten years ago would be measured in Megabytes today. With three dimensional (3D) cameras appearing along with higher resolution, you do not need to be a rocket scientist or industry pundit to figure out what that growth trend trajectory looks like.

However it is not just the size of the data that is getting larger, there are also more instances along with copies of those files, photos, videos and other objects being created, stored and retained. Similar to data, there are more people now than ten years ago and some of those have also grown larger, or at least around the waistline. This means that more people are creating and relying on larger amounts of information being available or accessible when and where needed. As people grow older, the amount of data that they generate will naturally increase as will the information that they consume and rely upon.

Where things get interesting is that looking back in history, that is more than ten or even a hundred years, the trend is that there are more people, they are living longer, and they are generating larger amounts of data that is taking on new value or meaning. Heck you can even go back from hundreds to thousands of years and see early forms of data archiving and storage with drawings on walls of caves or other venues. I Wonder if had the cost (and ease of use) to store and keep data had been lower back than would there have been more information saved? Or was it a case of being too difficult to use the then state of art data and information storage medium combined with limited capacities so they simply ran out of storage and retention mediums (e.g. walls and ceilings)?

Lets come back to the current for a moment which is another trend of data that in the past would have been kept offline or best case near line due to cost and limits or constraints are finding their way online either in public or private venues (or clouds if you prefer).

Thus the trend of expanding data life cycles with some types of data being kept online or readily accessible as its value is discovered.

Here is an easy test, think of something that you may have googled or searched for a year or two ago that either could not be found or was very difficult to find. Now take that same search or topic query and see if anything appears and if it does, how many instances of it appear. Now make a note to do the same test again in a year or even six months and compare the results.

Now back to the future however with an eye to the past and things get even more interesting in that some researchers are saying that in centuries to come, we should expect to see more people not only living into their hundreds, however even longer. This follows the trend of the average life expectancy of people continues to increase over decades and centuries.

What if people start to live hundreds of years or even longer, what about the information they will generate and rely upon and its later life cycle or span?

Here is a link to a post where a researcher sees that very far down the road, people could live to be a thousand years old which brings up the question, what about all the data they generate and rely upon during their lifetime.

Ok, now back to the 21st century and it is safe to say that there will be more data and information to process, move, store and keep for longer periods of time in a cost effective way. This means applying data footprint reduction (DFR) such as archiving, backup and data protection modernization, compression, consolidation where possible, dedupe and data management including deletion where applicable along with other techniques and technologies combined with best practices.

Will you out live your data, or will your data survive you?

These are among other things to ponder while you enjoy your summer (northern hemisphere) vacation sitting on a beach or pool side enjoying a cool beverage perhaps gazing at the passing clouds reflecting on all things great and small.

Ok, nuff said for now.

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

July 27, 2011November 26, 2023

Summer 2011 StorageIO News Letter

Summer 2011 Newsletter

Welcome to the Summer 2011 edition of the Server and StorageIO Group (StorageIO) newsletter. This follows the Spring 2011 edition.

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 Summer 2011 edition as an HTML or PDF or, to go to the newsletter page to view previous editions.

Follow via Goggle Feedburner here or via email subscription here.

You can also subscribe to the news letter by simply sending an email to newsletter@storageio.com

Enjoy this edition of the StorageIO newsletter, 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

July 11, 2011March 7, 2022

Are Hard Disk Drives (HDDs) getting too big?

Lets start out by clarifying something, that is in terms of context or scope, big means storage capacity as opposed to the physical packaging size of a hard disk drive (HDD) which are getting smaller.

So are HDDs in terms of storage capacity getting too big?

This question of if HDDs storage capacity getting too big to manage comes up every few years and it is the topic of Rick Vanovers (aka twitter @RickVanover Episode 27 Pod cast: Are hard drives getting to big?

As I discuss in this pod cast with Rick Vannover of Veeam, with the 2TB and even larger future 4TB, 8 to 9TB, 18TB, 36TB and 48 to 50TB drives not many years away, sure they are getting bigger (in terms of capacity) however we have been here before (or at least some of us have). We discuss how back in the late 90s HDDs were going from 5.25 inch to 3.5 inch (now they are going from 3.5 inch to 2.5 inch), and 9GB were big and seen as a scary proposition by some for doing RAID rebuilds, drive copy or backups among other things, not to mention if putting to many eggs (or data) in one basket.

In some instances vendors have been able to combine various technologies, algorithms and other techniques to RAID rebuild a 1TB or 2TB drive in the same or less amount of time as it used to take to process a 9GB HDD. However those improvements are not enough and more will be needed leveraging faster processors, IO busses and back planes, HDDs with more intelligence and performance, different algorithms and design best practices among other techniques that I discussed with Rick. After all, there is no such thing as a data recession with more information to be generated, processed, moved, stored, preserved and served in the future.

If you are interested in data storage, check out Ricks pod cast and hear some of our other discussion points including how SSD will help keep the HDD alive similar to how HDDs are offloading tape from their traditional backup role, each with its changing or expanding focus among other things.

On a related note, here is post about RAID remaining relevant yet continuing to evolve. We also talk about Hybrid Hard Disk Drives (HHDD) where in a single sealed HDD device there is flash and dram along with a spinning disk all managed by the drives internal processor with no external special software or hardware needed.

Put on your head phones (or not) and check out Ricks pod cast here (or on the head phone image above).

Thanks again Rick, really enjoyed being a guest on your show.

Whats your take, are HDDs getting to big in terms of capacity or do we need to leverage other tools, technology and techniques to be more effective in managing expanding data footprint including use of data footprint reduction (DFR) techniques?

Ok, nuff said for now.

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

July 6, 2011November 3, 2024

Happy 100th birthday or anniversary wishes

I would like to take a moment to wish a happy 100th birthday (or anniversary) to entities (or items) that Im involved with in one form or another.

Both are technology and infrastructure related, both facilitate commerce and transportation and in active service.

One is a company known to many as IBM or International Business Machine Corporation that recently celebrated its 100th birthday. For anyone working or involved in some shape or form with computing or high technology, at some point in your life you most likely have directly or indirectly used something provided by IBM.

The other is the Arcola High Bridge aka Soo line railroad bridge that crosses the St. Croix River north of Stillwater (click here to see some old photos). The Arcola High Bridge (or here) is still in use where trains cross it several times a day (and night) as well as where legends and ghost stories permeate. Keep in mind that even though IBM was in business when this bridge was designed and built, the sophisticated computers and software that enables structures to be efficiently built today did not exist. You could say that this old bridge was built to last which it has, particularly in an era where much younger infrastructure items either wear out or fail.

Best wishes to both and hopefully many more.

Ok, nuff said for now

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

June 25, 2011November 26, 2023

Full RSS archive feeds are now available for StorageIOblog

To speed up access to the StorageIO and StorageIOblog site RSS full and RSS summary feeds, older posts have been moved to a new archive RSS feed. Theese changes are only to the RSS full and summary feed files, no changes have been made to the StorageIOblog site.

View or access the full StorageIO RSS feed (httP://storageioblog.com/RSSfullArchive.xml) here.

Enjoy the faster access RSS full and summary feed, plus archived feeds. Ok, nuf said for now.

Cheers gs

Greg Schulz – Author The Green and Virtual Data Center (CRC), Resilient Storage Networks (Elsevier) and coming summer 2011 Cloud and Virtual Data Storage Networking (CRC)
twitter @storageio

June 6, 2011November 26, 2023

Cloud storage: Dont be scared, however look before you leap

Here is a link to a web cast on BrightTalk I will be doing live on Thursday June 9, 2011 at 1PM Pacific, 3PM Central or 4PM Eastern time lasting about 45 minutes. The web cast is titled: Cloud storage: Dont be scared, however look before you leap.

This web cast session takes a look at the state of public, private and hybrid cloud storage solutions and services including what you need to know to be prepared for a successful deployment. Topics to be covered include best practices, management and data protection in addition to navigating the hype and FUD associated with cloud storage today.

Check out the web cast either live or the replay later.

Cheers Gs

Greg Schulz – Author The Green and Virtual Data Center (CRC), Resilient Storage Networks (Elsevier) and coming summer 2011 Cloud and Virtual Data Storage Networking (CRC)
twitter @storageio

June 5, 2011April 18, 2022

Cloud and Virtual Data Storage Networking

For those who have read any of my previous posts, seen some of my articles, news letters, videos, pod casts, web casts or in person appearances you may have heard that I have a new book coming out this summer.

Here in the northern hemisphere its summer (well technically the solstice is just around the corner) and in Minnesota the ice (from the winter) is off the lakes and rivers. Granted, there is some ice floating that fell out of coolers for keeping beverages cool. This means that it is also fishing (and catching) season on the Scenic St. Croix River.

Greg showing his first catch of the 2011 season, St. Croix walleye aka Walter or Wanda

FTC disclosures (and for fun): Karenofarcola is wearing a StorageIO baseball cap and Im wearing a cap from a vendor marketing person who sent several as they too enjoy fishing and boating. Funny thing about the cap, all of the river rats and fishing people think it is from the people who make rod reels instead of solutions that go around tape and disk reels. Note, if you feel compelled to send me baseball caps, send at least a pair so there is a backup, standby, spare or extra one for a guest. The mustang survival jacket that Im wearing with the Seadoo logo is something I bought myself. I did get a discount however since there was a Seadoo logo on it and I used to have Seadoo jet boats. Btw, that was some disclosure fun and humor!

Ok, enough of the fun stuff, lets get back to the main theme of this post.

My new book which is the third in a series of solo projects including Resilient Storage Networks: Designing Flexible Scalable Data Infrastructures (Elsevier) and The Green and Virtual Data Center (CRC).

While the official launch and general availability will be later in the summer, following are some links and related content to give you advance information about the new book.

Click on the above image which will take you to the CRC Press page where you can learn more including what the book is about, view a table of contents, see reviews and more. Also check out the video below to learn more as well as visit my main web site where you can learn about Cloud and Virtual Data Storage Networking, my other books and view (or listen to) related content such as white papers, solution briefs, articles, tips, web cast, pod cast as well as view the recent and upcoming events schedule.

I also invite you to join Cloud and Virtual Data Storage Networking group

You can also view the short video at dailymotion, metacage, blip.tv, veoh, flickr, and photobucket among other venues.

If you are interested in being a reviewer, send a note to cvdsn@storageio.com with your name, blog or website and contact information including shipping address (sorry no PO boxes) plus telephone (or skype) number. Also indicate if you are a blogger, press/media, free lance writer, analyst, consultant, var, vendor, investor, IT professional or other.

Watch for more news and information as we get closer to the formal launch and release, in the meantime, you can pre order your copy now at Amazon, CRC Press and other venues around the world.

Ok, time to get back to work or go fishing, nuff said

Cheers Gs

Greg Schulz – Author The Green and Virtual Data Center (CRC), Resilient Storage Networks (Elsevier) and coming summer 2011 Cloud and Virtual Data Storage Networking (CRC)
twitter @storageio

June 5, 2011March 7, 2022

Congratulations to Infosmack on episode 100

Congratulations to the Infosmack crew hosts Greg Knieriemen and Marc Farley with the Diva of Disruptive Technologies, Christina Weil on their 100th episode. This episode included Robin Harris of StorageMojo and myself as guests.

Some items discussed in the 100th episode include Infosmack Live from the upcoming Dell Storage Forum, Cisco and the future of or with EMC and VMware, NetApp merger and acquisition activity, Sony and the death of Blu-ray, streaming video and related themes among others. Give it a listen when you get a chance and congratulations on the 100th episode.

Ok, nuff said

Cheers Gs

Greg Schulz – Author The Green and Virtual Data Center (CRC), Resilient Storage Networks (Elsevier) and coming summer 2011 Cloud and Virtual Data Storage Networking (CRC)
twitter @storageio

May 7, 2011March 7, 2022

StorageIO going Dutch: Seminar for Storage and I/O professionals

Data and Storage Networking Industry Trends and Technology Seminar

Greg Schulz of StorageIO in conjunction with or dutch parter Brouwer Storage Consultancy will be presenting a two day seminar for Storage Professionals Tuesday 24th and Wednesday 25th of May 2011 at Ampt van Nijkerk Netherlands.

Brouwer Storage Consultancey

Major themes that will be discussed include:

Who is doing what with various storage solutions and tools
Is RAID still relevant for today and tomorrow
Are hard disk drives and tape finally dead at the hands of SSD and clouds
What am I routinely hearing, seeing or being asked to comment on
Enabling storage optimization, efficiency and effectiveness (performance and capacity)
What do I see as opportunities for leveraging various technologies, techniques,trends
Supporting virtual servers including re-architecting data protection
How to modernize data protection (backup/restore, BC, DR, replication, snapshots)
Data footprint reduction (DFR) including archive, compression and dedupe
Clarifying cloud confusion, don’t be scared, however look before you leap

In addition this two day seminar will look at what are some new and improved technologies and techniques, who is doing what along with discussions around industry and vendor activity including mergers and acquisitions. Greg will also preview the contents and themes of his new book Cloud and Virtual Data Storage Networking (CRC) for enabling efficient, optimized and effective information services delivery across cloud, virtual and traditional environments.

Buzzwords and topic themes to be discussed among others include:
E2E, FCoE and DCB, CNAs, SAS, I/O virtualization, server and storage virtualization, public and private cloud, Dynamic Infrastructures, VDI, RAID and advanced data protection options, SSD, flash, SAN, DAS and NAS, object storage, application optimized or aware storage, open storage, scale out storage solutions, federated management, metrics and measurements, performance and capacity, data movement and migration, storage tiering, data protection modernization, SRA and SRM, data footprint reduction (archive, compress, dedupe), unified and multi-protocol storage, solution bundle and stacks.

For more information or to register contact Brouwer Storage Consultancy

Brouwer Storage Consultancey

Learn about other events involving Greg Schulz and StorageIO at www.storageio.com/events

Ok, nuff said for now

Cheers Gs

Greg Schulz – Author The Green and Virtual Data Center (CRC), Resilient Storage Networks (Elsevier) and coming summer 2011 Cloud and Virtual Data Storage Networking (CRC)
twitter @storageio

May 2, 2011October 18, 2024

Using Removable Hard Disk Drives (RHDDs)

Removable hard disk drives (RHDD) are a form of removable media which includes magnetic tape that address many common use cases. Usage scenarios include enabling bulk data portability for larger environments or for D2D backup where the media needs to be physically moved offsite for small and mid sized environments. RHDDs include among others those from Imation such as the Odyssey (which is what I use) and the Prostor RDX (OEMed by Imation and others). RHDD, tape along with other forms of portable media including those that use flash by being removable and portable presumable should have some extra packaging protection to safeguard against static shock in addition to supporting encryption capabilities.

Compared to disks including RHDD, tape for most and particularly larger environments should have an overall lower media cost for parking, preserving and when needed serving inactive or archived data (e.g. the changing roll of tape from day to back up to archive). Of course your real costs will vary by use in addition to how combined with data footprint reduction and other technologies.

A big benefit of RHDDs is that they are random meaning data can be searched and found quickly vs. tape media which has great sequential or streaming capabilities if you have a system that can support that ability. The other benefit of RHDD is that depending on their implementation, they should plug and play with your systems appearing as disk without any extra drivers or configuration or software tools making for ease of use. Being removable they can be used for portability such as sending data to a cloud or MSP as part of an initial bulk copy, or sending data offset or taking home as part of an offsite backup, data protection or BC/DR strategy as well as being used for archiving. The warning with RHDD is their cost per TByte will generally be higher than compared to tape as well as having to have a docking station or specific drive interface depending on specific product and configuration.

RHDD are a great compliment to traditional fixed or non removable disk, Hybrid Hard Disk Drive (HHDD) and Solid State Device (SSD) based storage as well as coexist with cloud or MSP backup and archive solutions. The smaller the environment the more affordable using RHDD become vs. tape for backup and archive operations or when portability is required. Even if using a cloud or managed service provider (MSP) backup provider, network bandwidth costs, availability or performance may limit the amount of data that can be moved in a cost effective way. For example placing an archive and gold or master copy of your static data on a RHDD that may be kept on site in a safe off-site place and then sending data that is routinely changed to the cloud or MSP provider (think full local and offsite plus partial full and incremental in the cloud).

By leveraging archiving and data footprint reduction (DFR) techniques including dedupe and compression, you can stretch your budget by sending less data to cloud or MSP services while using removable media for data protection. You would be surprised how many TBytes of data can be kept in a safe deposit box. For my own business, I have used RHDDs for several years to keep gold master copies as well as archives offsite as part of a disk to disk (D2D) or D2D2RHDD strategy. The data protection strategy is also complimented by sending active data to a cloud backup MSP (encrypted of course). It might be belt and suspenders, however it is also eating my own dog food practicing what I talk about and the approach has proven itself a few times.

Here are some related links to more material:
Removable disk drives vs. tape storage for small businesses
The pros and cons of removable disk storage for small businesses
Removable storage media appealing to SMBs, but with caveats
StorageIO Momentus Hybrid Hard Disk Drive (HHDD) Moments

Ok, nuff said for now

Cheers Gs

Greg Schulz – Author The Green and Virtual Data Center (CRC), Resilient Storage Networks (Elsevier) and coming summer 2011 Cloud and Virtual Data Storage Networking (CRC)
twitter @storageio

May 2, 2011October 17, 2024

StorageIO Momentus Hybrid Hard Disk Drive (HHDD) Moments

This is the third in a series of posts that I have done about Hybrid Hard Disk Drives (HHDDs) along with pieces about Hard Disk Drives (HDD) and Solid State Devices (SSDs). Granted the HDD received its AARP card several years ago when it turned 50 and is routinely declared dead (or read here) even though it continues to evolve along SSD maturing and both expanding into different markets as well as usage roles.

For those who have not read previous posts about Hybrid Hard Disk Drives (HHDDs) and the Seagate Momentus XT you can find them here and here.

Since my last post, I have been using the HHDDs extensively and recently installed the latest firmware. The release of new HHDD firmware by Seagate for the Momentus XT (SD 25) like its predecessor SD24 cleaned up some annoyances and improved on overall stability. Here is a Seagate post by Mark Wojtasiak discussing SD25 and feedback obtained via the Momentus XT forum from customers.

If you have never done a HDD firmware update, its not as bad or intimidating as might be expected. The Seagate firmware update tools make it very easy, that is assuming you have a recent good backup of your data (one that can be restored) and about 10 to 15 minutes of time for a couple of reboots.

Speaking of stability, the Momentus XT HHDDs have been performing well helping to speed up accessing large documents on various projects including those for my new book. Granted an SSD would be faster across the board, however the large capacity at the price point of the HHDD is what makes it a hybrid value proposition. As I have said in previous posts, if you have the need for speed all of the time and time is money, get an SSD. Likewise if you need as much capacity as you can get and performance is not your primary objective, then leverage the high capacity HDDs. On the other hand, if you need a balance of some performance boost with capacity boost and a good value, then check out the HHDDs.

Image of Momentus XT courtesy of www.Seagate.com

Lets shift gears from that of the product or technology to that of common questions that I get asked about HHDDs.

Common questions I get asked about HHDDs include:

What is a Hybrid Hard Disk Drive?

A Hybrid Hard Disk Drive includes a combination of rotating HDD, solid state flash persistent memory along with volatile dynamic random access memory (DRAM) in an integrated package or product. The value proposition and benefit is a balance of performance and capacity at a good price for those environments, systems or applications that do not need all SSD performance (and cost) vs. those that need some performance in addition to large capacity.

How the Seagate Momentus XT differs from other Hybrid Disks?
One approach is to take a traditional HDD and pair it with a SSD using a controller packaged in various ways. For example on a large scale, HDDs and SSDs coexist in the same tiered storage system being managed by the controllers, storage processors or nodes in the solution including automated tiering and cache promotion or demotion. The main difference however between other storage systems, tiering and pairing and HHDDs is that in the case of the Momentus XT the HDD, SLC flash (SSD functionality) and RAM cache and their management are all integrated within the disk drive enclosure.

Do I use SSDs and HDDs or just HHDDs?
I have HHDDs installed internally in my laptops. I also have HDDs which are installed in servers, NAS and disk to disk (D2D) backup devices and Digital Video Recorders (DVRs) along with external SSD and Removable Hard Disk Drives (RHDDs). The RHDDs are used for archive and master or gold copy data protection that go offsite complimenting how I also use cloud backup services as part of my data protection strategy.

What are the technical specifications of a HHDD such as the Seagate Momentus XT?
3Gbs SATA interface, 2.5 inch 500GB 7,200 RPM HDD with 32MB RAM cache and integrated 4GByte SLC flash all managed via internal drive processor. Power consumption varies depending what the device is doing such as initial power up, idle, normal or other operating modes. You can view the Seagate Momentus XT 500GB (ST95005620AS which is what I have) specifications here as well as the product manual here.

One of my HHDDs on a note pad (paper) and other accessories

Do you need a special controller or management software?
Generally speaking no, the HHDD that I have been using plugged and played into my existing laptops internal bay replacing the HDD that came with those systems. No extra software was needed for Windows, no data movement or migration tools needed other than when initially copying from the source HDD to the new HHDD. The HHDD do their own caching, read ahead and write behind independent of the operating system or controller. Now the reason I say generally speaking is that like many devices, some operating systems or controllers may be able to leverage advanced features so check your particular system capabilities.

How come the storage system vendors are not talking about these HHDDs?
Good question which I assume it has a lot to do with the investment (people, time, engineering, money and marketing) that they have or are making in controller and storage system software functionality to effectively create hybrid tiered storage systems using SSD and HDDs on different scales. There have been some packaged HHDD systems or solutions brought to market by different vendors that combine HDD and SSD into a single physical package glued together with some software and controllers or processors to appear as a single system. I would not be surprised to see discrete HHDDs (where the HDD and flash SSD and RAM are all one integrated product) appear in lower end NAS or multifunction storage systems as well as for backup, dedupe or other system that requires large amounts of capacity space and performance boost now and then.

Why do I think this? Simple, say you have five HHDDs each with 500GB of capacity configured as a RAID5 set resulting in 2TByte of capacity. Using as a hypothetical example the Momentus XT yields 5 x 4GByte or 20GByte of flash cache helps accelerate write operations during data dumps, backup or other updates. Granted that is an overly simplified example and storage systems can be found with hundreds of GByte of cache, however think in terms of value or low cost balancing performance and capacity to cost for different usage scenarios. For example, applications such as bulk or scale out file and object storage including cloud or big data, entertainment, Server (Citrix/Xen, Microsoft/HyperV, VMware/vSphere) and Desktop virtualization or VDI, Disk to Disk (D2D) backup, business analytics among others. The common tenets of those applications and usage scenario is a combination of I/O and storage consolidation in a cost effective manner addressing the continuing storage capacity to I/O performance gap.

Storage and I/O performance gap

Do you have to backup HHDDs?
Yes, just as you would want to backup or protect any SSD or HHD device or system.

How does data get moved between the SSD and the HDD?
Other than the initial data migration from the old HDD (or SSD) to the HHDD, unless you are starting with a new system, once your data and applications exist on the HHDD, it automatically via the internal process of the device manages the RAM, flash and HDD activity. Unlike in a tiered storage system where data blocks or files may be moved between different types of storage devices, inside the HHDD, all data gets written to the HDD, however the flash and RAM are used as buffers for caching depending on activity needs. If you have sat through or listened to a NetApp or HDS use of cache for tiering discussion what the HHDDs do is similar in concept however on a smaller scale at the device level, potentially even in a complimentary mode in the future? Other functions performed inside the HHDD by its processor includes reading and writing, managing the caches, bad block replacement or re vectoring on the HDD, wear leveling of the SLC flash and other routine tasks such as integrity checks and diagnostics. Unlike paired storage solutions where data gets moved between tiers or types of devices, once data is stored in the HHDD, it is managed by the device similar to how a SSD or HDD would move blocks of data to and from the specific media along with leveraging RAM cache as a buffer.

Where is the controller that manages the SSD and HDD?
The HHDD itself is the controller per say in that the internal processor that manages the HDD also directly access the RAM and flash.

What type of flash is used and will it wear out?
The XT uses SLC (single level cell) flash which with wear leveling has a good duty cycle (life span) and is what is typically found in higher end flash SSD solutions vs. lower cost MLC (multi level cell)

Have I lost any data from it yet?
No, at least nothing that was not my own fault from saving the wrong file in the wrong place and having to recover from one of my recent D2D copies or the cloud. Oh, regarding what have I done with the HDDs that were replaced by the HHDDs? They are now an extra gold master backup copy as of a particular point in time and are being kept in a safe secure facility, encrypted of course.

Have you noticed a performance improvement?
Yes, performance will vary however in many cases I have seen performance comparable to SSD on both reads and writes as long as the HDDs keep up with the flash and RAM cache. Even as larger amounts of data are written, I have seen better performance than compared to HDDs. The caveat however is that initially you may see little to marginal performance improvement however over time, particularly on the same files, performance tends to improve. Working on large tens to hundreds of MByte size documents I noticed good performance when doing saves compared to working with them on a HDD.

What do the HHDDs cost?
Amazon.com has the 500GB model for about $100 which is about $40 to $50 less than when I bought my most recent one last fall. I have heard from other people that you can find them at even lower prices at other venues. In the theme of disclosures, I bought one of my HHDDs from Amazon and Seagate gave me one to test.

Will I buy more HHDDs or switch to SSDs?
Where applicable I will add SSDs as well as HDDs, however where possible and practical, I will also add HHDDs perhaps even replacing the HDDs in my NAS system with HHDDs at some time or maybe trying them in a DVR.

What is the down side to the HHDDs?
Im generating and saving more data on the devices at a faster rate which means that when I installed them I was wondering if I would ever fill up a 500GB drive. I still have hundreds of GBytes free or available for use, however I also am able to cary more reference data or information than in the past. In addition to more reference data including videos, audio, images, slide decks and other content, I have also been able to keep more versions or copies of documents which has been handy on the book project. Data that changes gets backed up D2D as well as to my cloud provider including while traveling. Leveraging compression and dedupe, given that many chapters or other content are similar, not as much data actually gets transmitted when doing cloud backups which has been handy when doing a backup from a airplane flying over the clouds. A wish for the XT type of HHDD that I have is for vendors such as Seagate to add Self Encrypting Disk (SED) capabilities to them along with applying continued intelligent power management (IPM) enhancements.

Why do I like the HHDD?
Simple, it solves both business and technology challenges while being an enabler, it gives me a balance of performance for productivity and capacity in a cost effective manner while being transparent to the systems it works with.

Here are some related links to additional material:
Data Center I/O Bottlenecks Performance Issues and Impacts
Has SSD put Hard Disk Drives (HDDs) On Endangered Species List?
Seagate Momentus XT SD 25 firmware
Seagate Momentus XT SD25 firmware update coming this week
A Storage I/O Momentus Moment
Another StorageIO Hybrid Momentus Moment
As the Hard Disk Drive (HDD) continues to spin
Has SSD put Hard Disk Drives (HDDs) On Endangered Species List?
Funeral for a Friend
As the Hard Disk Drive (HDD) continues to spin
Seagate Momentus XT product specifications
Seagate Momentus XT product manual
Technology Tiering, Servers Storage and Snow Removal
Self Encrypting Disks (SEDs)

Ok, nuff said for now

Cheers Gs

Greg Schulz – Author The Green and Virtual Data Center (CRC), Resilient Storage Networks (Elsevier) and coming summer 2011 Cloud and Virtual Data Storage Networking (CRC)
twitter @storageio

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