Power and Cooling Archives

November 24, 2011January 1, 2022

Speaking of speeding up business with SSD storage

Solid state devices (SSD) are a popular topic gaining both industry adoption and customer deployment to speed up storage performance. Here is a link to a recent conversation that I had with John Hillard to discuss industry trends and perspectives pertaining to using SSD to boost performance and productivity for SMB and other environments.

SSDs can be a great way for organizations to do IO consolidation to reduce costs in place of using many hard disk drives (HDDs) grouped together to achieve a certain level of performance. By consolidating the IOs off of many HDDs that often end up being under utilized from a space capacity basis, organizations can boost performance for applications while reducing, or reusing HDD based storage capacity for other purposes including growth.

Here is some related material and comments:
Has SSD put Hard Disk Drives (HDDs) On Endangered Species List?
SSD and Storage System Performance
Are Hard Disk Drives (HDDs) getting too big?
Solid state devices and the hosting industry
Achieving Energy Efficiency using FLASH SSD
Using SSD flash drives to boost performance

Four ways to use SSD storage
4 trends that shape how agencies handle storage
Giving storage its due

You can read a transcript of the conversation and listen to the pod cast here, or download the MP3 audio here.

Ok, nuff said about SSD (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

November 10, 2011December 24, 2020

Do you know HDS or what it means?

How much do you know about HDS?

When you hear HDS in the context of information technology do you think of Hitachi Data Systems?

Along with a bunch of other IT industry advisors, analysts, bloggers, consultants, financiers and pundits or influencers, Im attending a event being sponsored by HDS this week in San Jose California (SJC).

For those not familiar, as a division of the much larger Japan based conglomerate named Hitachi, HDS sells various types of data storage systems and associated management tools along with services.

While on the airplane from Seattle (SEA) to SJC the other night (Disclosure: HDS picked up the one way coach ticket) it occurred to me different things that HDS could refer to besides Hitachi Data Systems.

In addition to being the International Airtranspot Transport Association (IATA) code for Hoedspruit Airport in South Africa where HDS is in the process of buying Shoeden Data Systems (SDS), here are some other possibilities of what HDS could mean.

Hadoop Data Solutions
Half height Disk Shelve
Hardware Disks and Software
Has Dedupe Solutions
Has Disaster recovery Solutions
Has Disk Story
Has Disks Servers
Has Diverse Solutions
Has Done Servers
Have Daily Schnitzel (in Vienna aka Wien)

HDDs Depend on Software
Healthcare Data Systems
Helps Datacenters Save
Helps Data Survives
Helps Data Synchronize
Helps Delete Spam
Helps Dell Servers
Helps Disk Spin
High Density SAS
Houses Data on SSD
How Data Saved
Hu (Yoshida) Discusses Storage
Huge Disk System
HVAC Down Stairs (Heating Ventilation Air Conditioning)
Hybrid Data Systems

Ok, nuff said for now in case the HDS influence folks dont have a sense of influence humor.

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

October 23, 2011March 7, 2022

What am I hearing and seeing while out and about

It has been a busy fall 2011 which started out with VMworld 2011 in Las Vegas just before the labor day weekend.

Scenes from the CXI party (@cxi) at VMworld 2011

Besides activity in support of the launch of my new book Cloud and Virtual Data Storage Networking (CRC Press), I have been busy with various client research, consulting and advisory projects. In addition to Las Vegas for VMworld, out and about travel activities for attending conferences and presenting seminars have included visits in Minneapolis (local), Nijkerk Holland and Denver (in the same week) and Orlando (SNW). Upcoming out and about events are scheduled for Los Angles, Atlanta, Chicago, Seattle and a couple of trips to San Jose area before the brief thanksgiving holiday break.

My Sunday virtual office in Nijkerk before a busy week
Beer and Bitter ballens on the left, coffee machine in Nijkerk on the right

Day one of two day seminar in Nijkerk

Instead of automobiles lined up a trainstation, its bicycles in Nijkerk Waiting in Nijkerk for 6:30AM train to Schiphol and on to Denver
Bicycles lined up at the Nijkerk train station, waiting for the 6:30 train to Schiphol

Changing trains in Amsfort on way to Schiphol Boarding Delta A333 AMS to MSP then on to DEN
Changing trains on way to Schiphol to board flight to MSP and then to DEN

Climbing out of Denver on way back to MSP, it was a long yet fun week Evening clouds enroute from DEN to MSP
After Denver back to MSP for a few days before SNW in Orlando

While being out and about I have had the chance to meet and visit with many different people. Here are some questions and comments that I have heard while out and about:

What comes after cloud?
Are there standards for clouds and virtualization?
Should cost savings be the justification for going to cloud, virtual or dynamic environments?
How is big data different than traditional stream and flat file analytics and processing using tools such as SAS (Statistical Analysis Software)?
Is big data only about map reduce and hadoop?
Are clouds any less secure or safe for storage and applications?
Do clouds and virtualization removing complexity and simplify infrastructures?
Are cloud storage services cheaper than buying and managing your own?
Is object based storage a requirement for public or private cloud?
Do solution bundles such as EMC vBlock and NetApp FlexPods reduce complexity?
Why is FCoE taking so long to be adopted and is it dead?
Should cost savings be the basis for deciding to do a VDI or virtualization project?
What is the best benchmark or comparison for making storage decisions?

In addition, there continues to be plenty of cloud confusion, FUD and hype around public, private, hybrid along with AaaS, SaaS, PaaS and IaaS among other XaaS. The myth that virtualization of servers, storage and workstations is only for consolidation continues. However there are more people beginning to see the next wave of life beyond consolidation where the focus expands to flexibility, agility and speed of deployment for non aggregated workloads and applications. Another popular myth that is changing is that data footprint reduction (DFR) is only about dedupe and backup. What is changing is an awareness that DFR spans all types of storage and data from primary to secondary leveraging different techniques including archive, backup modernization, compression, consolidation, data management and dedupe along with thin provisioning among other techniques.

Archiving for email, database and file systems needs to be rescued from being perceived as only for compliance purposes. If you want or need to reduce your data footprint impact (DFR), optimize your storage for performance or capacity, enable backup, BC and DR to be performed faster, achieve Green IT and efficiency objectives, expand your awareness around archiving. While discussing archiving, focus is often on the target or data storage medium such as disk, tape, optical or cloud along with DFR techniques such as compression and dedupe or functionally including ediscovery and WORM. The other aspects of archive that need to be looked at include policies, retention, application and software plugins for Exchange, SQL, Sharepoint, Sybase, Oracle, SAP, VMware and others.

Boot storms continue to be a common theme for apply solid state devices (SSD) in support of virtual desktop inititiaves (VDI). There is however a growing awareness and discussions around shutdown storms, day to day maintenance including virus scans in addition to applications that increase the number of writes. Consequently the discussions around VDI are expanding to include both reads and writes as well as reduced latency for storage and networks.

Some other general observations, thoughts and comments:

Getting into Holland as a visitor is easier than returning to the U.S. as a citizen
Airport security screening is more thorough and professional in Europe than in the U.S.
Hops add latency to beer (when you drink it) and to networks (time delay)
Fast tape drives need disk storage to enable streaming for reads and writes
SSD is keeping HDDs alive, HDDs are keeping tape alive and all there roles are evolving while the technologies continue to evolve.
Hybrid Hard Disk Drives (HHDDs) are gaining in awareness and deployments in workstations as well as laptops.
Confusion exists around what are flat layer 2 networks for LANs and Sans
Click here to view additional comments and perspectives

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

October 23, 2011November 26, 2023

SNW Fall 2011 revisited and SNIA Emerald program

A couple of weeks ago I traveled down to Orlando Florida for a few days to attend the fall 2011 SNW (Storage Networking World) produced in conjunction by IDG Computerworld and the Storage Networking Industry Association (SNIA).

While at the Orlando event, SNIA executive director Leo Legar asked me how many SNWs I had attended and my responses was on which continent?

My answer was part in fun however also serious as I have been attending SNWs (in addition to other SNIA events) for over ten years in both North and South America as well as in Europe including presenting SNIA tutorials and SNW sessions.

SNW is always good for meeting up with old friends and acquaintances along with meeting new ones including twitter tweeps (hashtag #snwusa #snw2011 @sniacloud @snwusa) and the recent event was no exception. Granted SNW is smaller than it was during its peak in the mid 2000s however it was great to go for a couple of days of meetings, checking out the expo hall and some sessions as well as getting out and about meeting people involved with servers, storage, networking, virtualization, cloud, hardware, software and services.

SNW remains as its name implies (Storage Networking World) an event around networking as in conversations, learning, knowledge exchange, information gathering and meetings not to mention the hands on lab. I found the two days I was there adequate to get the meetings and other activities I had planned, along with time for impromptu meetings. ANother observation was that during the peak of the large mega SNW events, while there were more meetings, they were also much shorter along the lines of speed dating vs. those a couple of weeks ago where there was time to have quality conversations.

Some of the news at the recent SNW event, involved SNIA and their Green Storage Initiative (GSI) announcing the availability of the Emerald program Green IT storage energy metrics that have been in the works for several years. The SNIA Emerald program consists of specifications, taxonomies, metrics and measurements standards to gauge various types of storage power or energy usage to gauge its effectiveness. In other words, yes, Green IT and Green storage are still alive, they just are not as trendy to talk about as they were a few years ago which a shift in focus towards productivity, effective use and supporting growth to help close the green gap and missed IT as well as business opportunities.

Also during the recent SNW event, I did a book signing event sponsored by SNIA. If you have not done so, check out the SNIA Cloud Storage Initiative (CSI) who arranged for several of my new book Cloud and Virtual Data Storage Networking to be given away. Book signings are fun in that I get to meet lots of people and hear what they are doing, encountering, looking for, have done, concerned or excited about. It was handy having SNIA CSI material available at the table as I was signing books and visiting with people to be able to give them information about things such as CDMI not to mention hearing what they were doing or looking for. Note to SNIA, if we do this again, lets make sure to have someone from the CSI at the table to join in the fun and conversations as there were some good ones. Learn more about the activities of the SNIA CSI including their Cloud Data Management Initiative (CDMI) here.

Thanks again to SNIA for arranging the book signing event and for those who were not able to get a copy of my new book before they ran out, my publisher CRC Press Taylor and Francis has arranged a special SNIA and SNW discount code. To take advantage of the SNIA and SNW discount code, go to the CRC Press web site (here) and apply the discount code KVK01 during checkout for catalog item K12375 (ISBN: 9781439851739).

Thanks again to Wayne Adams (@wma01606), Leo Legar and Michael Meleedy among others who arranged for a fantastic fall 2011 SNW event along with everyone who participated in the book signing event and other conversations while in Orlando and to those who were involved virtually via twitter.

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

October 18, 2011November 26, 2023

Commentary on Clouds, Storage, Networking, Green IT and other topics

Rather than doing a bunch of separate posts, here is a collection of different perspectives and commentary on various IT and data storage industry activity.

Various comments and perspectives

In this link are comments and perspectives regarding thin provisioning including how it works as well as when to use it for optimizing storage space capacity. Speaking of server and storage capacity, here in this link are comments on what server and storage would be needed to support an SMB office of 50 people (or more, or less) along with how to back it up.

For those interested or in need of managing data and other records in this link are comments on preparing yourself for regulatory scrutiny.

Storage networking interface or protocol debates (battles) can be interesting, in this link, see the role of iSCSI SANs for data storage environments. Lets not forget about Fibre Channel over Ethernet (FCoE) which is discussed in this link and here in this link. Here in this link are comments about how integrated rackem, stackem and package bundles stack up. To support increased continued demand for managed service providers (MSP), cloud and hosted services providers are continuing to invest in their infrastructures, so read some comments here. While technology plays a role particular as it matures, there is another barrier to leveraging converged solutions and that is organizational, read some perspectives and thoughts here.

Storage optimization including data footprint reduction (DFR) can be used to cut costs as well as support growth. In this link see tips on reducing storage costs and additional perspectives in this link to do more with what you have. Here in this link are some wit and wisdom comments on the world of disaster recovery solutions. Meanwhile in this link are perspectives for choosing the right business continuity (BC) and disaster recovery (DR) consultant. In this link are comments on BC and DR including planning for virtualization and life beyond consolidation. Are disk based dedupe and virtual tape summit resources libraries a hold over for old backup, or a gateway to the future, see some perspectives on those topics and technologies in this link.

Here are some more comments on DR and BC leveraging the cloud while perspectives on various size organizations looking at clouds for backup in this piece here. What is the right local, cloud or hybrid backup for SMBs, check out some commentary here while viewing some perspectives on cloud disaster recovery here. Not to be forgotten, laptop data protection can also be a major headache however there are also many cures discussed in this piece here.

The Storage Networking Industry Association (SNIA) Green Storage Initiative (GSI) debut their Emerald power efficiency measurement specification recently, read some perspectives and comments in this link here. While we are on the topic of data center efficiency and effectiveness, here in this link are perspectives on micro servers or mini blade systems. Solution bundles also known as data center in a box or SAN in a CAN have been popular with solutions from EMC (vBlocks) and NetApp (FlexPods) among others, read perspectives on them in this link.

What would a conversation involving data storage and IT (particularly buzzword bingo) be without comments about Big Data and Big Bandwidth which you can read here.

Want to watch some videos, from Spring 2011 SNW, check out starting around the 15:00 to 55:00 time scale in this video from the Cube where various topics are discussed. Interested in how to scale data storage with clustered or scale up and out solutions, check out this video here or if you want to see some perspectives on data de duplication watch this clip.

Various comments and perspectives

Here is a video discussing SMBs as the current sweet spot for server virtualization with comments on the SMB virtualization dark side also discussed here. Meanwhile here are comments regarding EMC Flashy announcements from earlier this year on the Cube. Check out this video where I was a guest of Cali Lewis and John MacArthur on the Cube from the Dell Storage Forum discussing a range of topics as well as having some fun. Check out these videos and perspectives from VMworld 2011.

Whats your take on choosing the best SMB NAS? Here are some of my perspectives on choosing a SMB NAS storage system. Meanwhile here are some perspectives on enterprise class storage features finding their way into SMB NAS storage systems.

Meanwhile industry leaders EMC and NetApp have been busy enhancing their NAS storage solutions that you can read comments here.

Are you familiar with the Open Virtualization Alliance (OVA)? Here are some comments about OVA and other server virtualization topics.

Whats your take on Thunderbolt the new interconnect Apple is using in place of USB, here are my thoughts. Meanwhile various other tips and Ask the Expert (AtE) and discussion can be found here.

Check out the above links, as well view more perspectives, comments and news here, here, here, here and here.

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

September 8, 2011November 26, 2023

Check out these top 50 IT blogs

The other day I saw something come in via the net about a top 50 IT blog list from Biztech Magazine, so being curious I clicked on the link (after making sure that it was safe).

To my surprise, I saw my blog (aka Gregs StorageIOblog) listed near the top (they sorted by blog name order) of the top 50 IT blog sites that they listed.

Im honored to have been included in such an esteemed and diverse list of blogs spanning various technologies, topics and IT focus areas.

Congratulations to all that made the list as well as others blogs that you will want to add to your reading lists including those mentioned over on Calvin Zitos (aka @hpstorageguy) blog.

Check out the top 50 IT blog list here.

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

September 7, 2011March 7, 2022

Cloud and Virtual Data Storage Networking book released

Ok, it’s now official, following its debut at the VMworld 2011 book store last week in Las Vegas, my new book Cloud and Virtual Data Storage Networking (CRC Press) is now formally released with general availability announced today along with companion material located at https://storageioblog.com/book3 including the Cloud and Virtual Data Storage Networking LinkedIn group page launched a few months ago. Cloud and Virtual Data Storage Networking (CVDSN) a 370 page hard cover print is my third solo book that follows The Green and Virtual Data Center (CRC Press 2009) and Resilient Storage Networks (Elsevier 2004).

Cloud and Virtual Data Storage Networking Book by Greg Schulz
CVDSN book was on display at VMworld 2011 book store last week along with a new book by Duncan Epping (aka @DuncanYB ) and Frank Denneman (aka @frankdenneman ) titled VMware vSphere 5 Clustering Technical Deepdive. You can get your copy of Duncan and Franks new book on Amazon here.

Greg Schulz during book signing at VMworld 2011
Here is a photo of me on the left visiting a VMworld 2011 attendee in the VMworld book store.

Whats inside the book, theme and topics covered

When it comes to clouds, virtualization, converged and dynamic infrastructures Dont be scared however do look before you leap to be be prepared including doing your homework.

What this means is that you should do your homework, prepare, learn, and get involved with proof of concepts (POCs) and training to build the momentum and success to continue an ongoing IT journey. Identify where clouds, virtualization and data storage networking technologies and techniques compliment and enable your journey to efficient, effective and productive optimized IT services delivery.

There is no such thing as a data or information recession: Do more with what you have

A common challenge in many organizations is exploding data growth along with associated management tasks and constraints, including budgets, staffing, time, physical facilities, floor space, and power and cooling. IT clouds and dynamic infrastructure environments enable flexible, efficient and optimized, cost-effective and productive services delivery. The amount of data being generated, processed, and stored continues to grow, a trend that does not appear to be changing in the future. Even during the recent economic crisis, there has been no slow down or information recession. Instead, the need to process, move, and store data has only increased, in fact both people and data are living longer. CVDSN presents options, technologies, best practices and strategies for enabling IT organizations looking to do more with what they have while supporting growth along with new services without compromising on cost or QoS delivery (see figure below).

Driving Return on Innovation the new ROI: Doing more, reducing costs while boosting productivity

Expanding focus from efficiency and optimization to effectiveness and productivity

A primary tenant of a cloud and virtualized environment is to support growing demand in a cost-effective manner with increased agility without compromising QoS. By removing complexity and enabling agility, information services can be delivered in a timely manner to meet changing business needs.

There are many types of information services delivery model options

Various types of information services delivery modes should be combined to meet various needs and requirements. These complimentary service delivery options and descriptive terms include cloud, virtual and data storage network enabled environments. These include dynamic Infrastructure, Public & Private and Hybrid Cloud, abstracted, multi-tenant, capacity on demand, Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS) among others.

Convergence combing different technology domains and skill sets

Components of a cloud and virtual environment include desktop, servers, and storage, networking, hardware, and software, services along with APIs and software stacks. This include virtual and physical desktops, data, voice and storage networks, LANs, SANs, MANs, WANs, faster blade and rack servers with more memory, SSD and high-capacity storage and associated virtualization tools and management software. True convergence combines leveraging technology and people, processes and best practices aligned to make the most of those resources to deliver cost-effective services delivery.

Best people, processes, practices and products (the four Ps)

Bringing all the various components together is the Ps (people skill sets, process, practices and products). This means leveraging and enhancing people skill sets and experience, process and procedures to optimize workflow for streamlined service orchestration, practices and policies to be more effectively reducing waste without causing new bottlenecks, and products such as racks, stacks, hardware, software, and managed or cloud services.

Service categories and catalogs, templates SLO and SLA alignment

Establishing service categories aligned to known service levels and costs enables resources to be aligned to applicable SLO and SLA requirements. Leveraging service templates and defined policies can enable automation and rapid provisioning of resources including self-service requests.

Navigating to effective IT services delivery: Metrics, measurements and E2E management

You cannot effectively manage what you do not know about; likewise, without situational awareness or navigation tools, you are flying blind. E2E (End to End) tools can provide monitoring and usage metrics for reporting and accounting, including enabling comparison with other environments. Metrics include customer service satisfaction, SLO and SLAs, QoS, performance, availability and costs to service delivered.

The importance of data protection for virtual, cloud and physical environments

Clouds and virtualization are important tools and technologies for protecting existing consolidated or converged as well as traditional environments. Likewise, virtual and cloud environments or data placed there also need to be protected. Now is the time to rethink and modernize your data protection strategy to be more effective, protecting, preserving and serving more data for longer periods of time with less complexity and cost.

Packing smart and effectively for your journey: Data footprint reduction (DFR)

Reducing your data footprint impact leveraging data footprint reduction (DFR) techniques, technologies and best practices is important for enabling an optimized, efficient and effective IT services delivery environment. Reducing your data footprint is enabled with clouds and virtualization providing a means and mechanism for archiving inactive data and for transparently moving it. On the other hand, moving to a cloud and virtualized environment to do more with what you have is enhanced by reducing the impact of your data footprint. The ABCDs of data footprint reduction include Archiving, Backup modernization, Compression and consolidation, Data management and dedupe along with Storage tiering and thin provisioning among other techniques.

How the book is laid out:

Table of content (TOC)
How the book is organized and who should read it
Preface
Section I: Why the need for cloud, virtualization and data storage networks
Chapter 1: Industry trends and perspectives: From issues and challenges to opportunities
Chapter 2: Cloud, virtualization and data storage networking fundamentals
Section II: Managing data and resources: Protect, preserve, secure and serve
Chapter 3: Infrastructure Resource Management (IRM)
Chapter 4: Data and storage networking security
Chapter 5: Data protection (Backup/Restore, BC and DR)
Chapter 6: Metrics and measurement for situational awareness
Section III: Technology, tools and solution options
Chapter 7: Data footprint reduction: Enabling cost-effective data demand growth
Chapter 8: Enabling data footprint reduction: Storage capacity optimization
Chapter 9: Storage services and systems
Chapter 10: Server virtualization
Chapter 11: Connectivity: Networking with your servers and storage
Chapter 12: Cloud and solution packages
Chapter 13: Management and tools
Section IV: Putting IT all together
Chapter 14: Applying what you have learned
Chapter 15: Wrap-up, what’s next and book summary
Appendices:
Where to Learn More
Index and Glossary

Here is the release that went out via Business Wire (aka Bizwire) earlier today.

Industry Veteran Greg Schulz of StorageIO Reveals Latest IT Strategies in “Cloud and Virtual Data Storage Networking” Book
StorageIO Founder Launches the Definitive Book for Enabling Cloud, Virtualized, Dynamic, and Converged Infrastructures

Stillwater, Minnesota – September 7, 2011 – The Server and StorageIO Group (www.storageio.com), a leading independent IT industry advisory and consultancy firm, in conjunction with publisher CRC Press, a Taylor and Francis imprint, today announced the release of “Cloud and Virtual Data Storage Networking,” a new book by Greg Schulz, noted author and StorageIO founder. The book examines strategies for the design, implementation, and management of hardware, software, and services technologies that enable the most advanced, dynamic, and flexible cloud and virtual environments.

The book supplies real-world perspectives, tips, recommendations, figures, and diagrams on creating an efficient, flexible and optimized IT service delivery infrastructures to support demand without compromising quality of service (QoS) in a cost-effective manner. “Cloud and Virtual Data Storage Networking” looks at converging IT resources and management technologies to facilitate efficient and effective delivery of information services, including enabling information factories. Schulz guides readers of all experience levels through various technologies and techniques available to them for enabling efficient information services.

Topics covered in the book include:

Information services model options and best practices
Metrics for efficient E2E IT management and measurement
Server, storage, I/O networking, and data center virtualization
Converged and cloud storage services (IaaS, PaaS, SaaS)
Public, private, and hybrid cloud and managed services
Data protection for virtual, cloud, and physical environments
Data footprint reduction (archive, backup modernization, compression, dedupe)
High availability, business continuance (BC), and disaster recovery (DR)
Performance, availability and capacity optimization

This book explains when, where, with what, and how to leverage cloud, virtual, and data storage networking as part of an IT infrastructure today and in the future. “Cloud and Virtual Data Storage Networking” comprehensively covers IT data storage networking infrastructures, including public, private and hybrid cloud, managed services, virtualization, and traditional IT environments.

“With all the chatter in the market about cloud storage and how it can solve all your problems, the industry needed a clear breakdown of the facts and how to use cloud storage effectively. Greg’s latest book does exactly that,” said Greg Brunton of EDS, an HP company.

Click here to listen and watch Schulz discuss his new book in this video.

About the Book

Cloud and Virtual Data Storage Networking has 370 pages, with more than 100 figures and tables, 15 chapters plus appendices, as well as a glossary. CRC Press catalog number K12375, ISBN-10: 1439851735, ISBN-13: 9781439851739, publication September 2011. The hard cover book can be purchased now at global venues including Amazon, Barnes and Noble, Digital Guru and CRCPress.com. Companion material is located at https://storageioblog.com/book3 including images, additional information, supporting site links at CRC Press, LinkedIn Cloud and Virtual Data Storage Networking group, and other books by the author. Direct book editorial review inquiries to John Wyzalek of CRC Press at john.wyzalek@taylorfrancis.com (twitter @jwyzalek) or +1 (917) 351-7149. For bulk and special orders contact Chris Manion of CRC Press at chris.manion@taylorandfrancis.com or +1 (561) 998-2508. For custom, derivative works and excerpts, contact StorageIO at info@storageio.com.

About the Author

Greg Schulz is the founder of the independent IT industry advisory firm StorageIO. Before forming StorageIO, Schulz worked for several vendors in systems engineering, sales, and marketing technologist roles. In addition to having been an analyst, vendor and VAR, Schulz also gained real-world hands on experience working in IT organizations across different industry sectors. His IT customer experience spans systems development, systems administrator, disaster recovery consultant, and capacity planner across different technology domains, including servers, storage, I/O networking hardware, software and services. Today, in addition to his analyst and research duties, Schulz is a prolific writer, blogger, and sought-after speaker, sharing his expertise with worldwide technology manufacturers and resellers, IT users, and members of the media. With an insightful and thought-provoking style, Schulz is also author of the books “The Green and Virtual Data Center” (CRC Press, 2009) which is on the Intel developers recommended reading list and the SNIA-endorsed reading book “Resilient Storage Networks: Designing Flexible Scalable Data Infrastructures” (Elsevier, 2004). Schulz is available for interviews and commentary, briefings, speaking engagements at conferences and private events, webinars, video and podcast along with custom advisory consultation sessions. Learn more at https://storageio.com.

End of press release.

Wrap up

I want to express thanks to all of those involved with the project that spanned over the past year.

Stayed tuned for more news and updates pertaining to Cloud and Virtual Data Storage Networking along with related material including upcoming events as well as chapter excerpts. Speaking of events, here is information on an upcoming workshop seminar that I will be involved with for IT storage and networking professionals to be held October 4th and 5th in the Netherlands.

You can get your copy now at global venues including Amazon, Barnes and Noble, Digital Guru and CRCPress.com.

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

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 11, 2022

Supporting IT growth demand during economic uncertain times

Doing more with less, doing more with what you have or reducing cost have been the mantra for the past several years now.

Does that mean as a trend, they are being adopted as the new way of doing business, or simply a cycle or temporary situation?

Reality is that many if not most IT organizations are and will remain under pressure to stretch their budgets further for the immediate future. Over the past year or two some organizations saw increases in their budgets however also increased demand while others saw budgets fixed or reduced while having to support growth. On the other hand, there is no such thing as an information recession with more data being generated, moved, processed, stored and retained for longer periods of time.

Something has to give as shown in the following figure which is that on one curve there is continued demand and growth, while another curve shows need to reduce costs while another reflects the importance of maintaining or enhancing service level objectives (SLOs) and quality of service (QoS).

One way to reduce costs is to inhibit growth while another is to support growth by sacrificing QoS including performance, response time or availability as a result of over consolidation, excessive utilization or instability as a result of stretching resources to far. Where innovation comes into play is finding and fixing problems vs. moving or masking them or treating symptoms vs. the real issue and challenge. Innovation also comes into play by identifying both near term tactical as well as longer term strategic means of taking complexity and cost out of service delivery and the resources needed to support them. For example determining the different resources and processes involved in delivering an email box of a given size and reliability. Another being supporting a virtual machine (VM) with a given performance and capacity capability. Yet another scenario is a file share or home directory of a specific size and availability. By streamlining work flows, leveraging automation and other tools to enforce polices as well as adopting new best practices complexity and thereby costs can be reduced. The net rest is a lower cost to provide a given service to a specific level which when multiplied out over many users or instances, results in cost savings however also productivity gains.

The above is all good and well for longer term strategic and where you want to go or get to, however what can be done right now today?

Here are a few tips to do more with what you have while supporting growth demands

If you have service level agreements (SLAs) and SLOs as part of your service category, review with your users as to what they need vs. what they would like to have. What you may find is that your users want or expect a given level of service, yet would be happy and ok with moving to a cloud service that had lower SLO and SLA expectations if lower cost. The previous scenario would be an indicator that you users want and thus you give them a higher level of service, yet their requirements are actually lower than what is expected. On the other hand if you do not have SLOs and SLAs aligned with cost for the services then set them up and review customer or client expectations, needs vs. wants on a regular basis. You might find out that you can stretch your budget by delivering a lower (or higher) class of services to meet different users requirements than what was assumed to be the case. In the case of supporting a better class of service, if you can use an SSD enabled solution to reduce latency or wait times and boost productivity, more transactions or page views or revenue per hour, that could prompt a client to request that capability to meet their business needs.

Reduce your data footprint impact in order to support growth using the ABCDs of data footprint reduction (DFR), that is Archive (email, file, database), Backup modernization, Compression and consolidation, Data management and dedupe, storage tiering among other techniques.

Storage, server virtualization and optimization using capacity consolidation where practical and IO consolidation to fast storage and SSD where possible. Also review storage configuration including RAID and allocation to identity if any relatively easy changes can improve performance, availability, capacity and energy impact.

Investigate available upgrades and enhancements to your existing hardware, software and services that can be applied to provide breathing room within current budgets while evaluating new technologies.

Find and fix problems vs. chasing false positives that provide near term relief only to have the real issue reappear. Maximize your budgets by identifying where people time and other resources are being spent due to processes, work flows, technology configuration complexity or bottlenecks and address those.

Enhance and leverage existing management measurements to gain more insight along with implementing new metrics for End to End (E2E) situational awareness of your environment which will enable effective decision making. For example you may be told to move some function to the cloud as it will be cheaper, yet if you do not have metrics to indicate one way or the other, how can that be an informed decision? If you have metrics that show your cost for the same service being moved to a cloud or managed service provider as well as QoS, SLO, SLA, RTO, RPO and other TLAs, then you can make informed decisions. That decision may still be to move functions to a cloud or other service even if in fact it is more expensive compared to what you can provide it for in order that your resources can be directed to supporting other important internal functions.

Look for ways to reduce cost of a service delivered as opposed to simply cutting costs. They sound like one and the same, however if you have metrics and measurements providing situational awareness to know what the cost of a service is, you can also then look at how to streamline those services, remove complexity, reduce workflow, leverage automation there by removing cost. The goal is the same, however how you go about removing cost can have an impact on your return on innovation not to mention customer satisfaction.

Also be an informed shopper, have a forecast or plan on what you will need and when, along with what you must have (core requirements) vs. what you would like to have or want. When looking at options, balance what is needed and then if you can get what you want or would like for little or no extra cost if they add value or enable other initiatives. Part of being an informed shopper is having support of the business to be able to procure what you want or need which means aligning technology resources and their cost to delivery of business functions and services.

What you need vs. what you want
In a recent interview with the associated press (AP) the reporter wanted to know my comments about spending vs. saving during economic tough times (you can read the story here). Basically my comments were to spend within your means by identifying what you need vs. what you want, what is required to keep the business running or improve productivity and remove cost as opposed to acquiring nice to have things that can wait. Sure I would like to have a new 85 to 120" 3D monitor for my workstation that could double as a TV, however I do not need or require it.

On the other hand, I recently upgraded an existing workstation adding a Hybrid Hard Disk Drive (HHDD) and some additional memory, about a $200USD investment that is already paying for itself via increased productivity. That is instead of enjoying a cup of dunkin donut coffee while waiting for some tasks to complete on that system, Im able to get more done in a given amount of time boosting productivity.

For IT environments this means looking at expenditures to determine what is needed or required to keep things running while supporting near term strategic and tactical initiatives or pet projects.

For vendors and vars, if things have not been a challenge yet, now they will need to refine their messages to show more value, return on innovation (ROI) in terms of how to help their customers or prospects stretch resources (budgets, people, skill sets, products, services, licenses, power and cooling, floor space) further to support growth, while removing costs without compromising on service delivery. This also means a shift in thinking of short term or tactical cost cutting to longer term strategic approaches of reducing costs to deliver a service or resources.

Related links pertaining to stretching your resources, doing more with what you have, increasing productivity and maximizing your budget to support growth without compromising on customer service.

Saving Money with Green IT: Time To Invest In Information Factories
Storage Efficiency and Optimization – The Other Green
Shifting from energy avoidance to energy efficiency
Saving Money with Green Data Storage Technology
Green IT Confusion Continues, Opportunities Missed!
Storage Efficiency and Optimization – The Other Green
PUE, Are you Managing Power, Energy or Productivity?
Cloud and Virtual Data Storage Networking
Is There a Data and I/O Activity Recession?
More Data Footprint Reduction (DFR) Material

What is your take?

Are you and your company going into a spending freeze mode, or are you still spending, however placing or having constraints put on discretionary spending?

How are you stretching your IT budget to go further?

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

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

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 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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