2010 – Blog Update and the future

January 13th, 2011 2 comments

Thank you all for reading and subscribing to the StorageNerve Blog.

I really appreciate all your comments, offline emails, twitter discussions and twitter DM’s, it was honestly a great year to meet and get into discussions with so many of the storage, virtualization and IT experts around the world.

Work related travel aside, attending some of the conferences and vendor focused blogging events kept the year quite busy. Some of the events attended during 2010 include GestaltIT Tech Field Day, couple of HP Storage Days, HP Server/ Blades Day, HDS Geek Day, HDS uValue Convention – Japan, HDS VSP Launch, EMC World and Dell OEM Day, it was quite challenging keeping a balance with work, family and the blogging events.

The numbers of blog posts in 2010 were far more infrequent than the past years. During the year, a total of 47 posts got pushed out, but a lot more frequently during the first half of the year than the later half.

Though the number of posts in 2010 were less than 2009, the site traffic was up by more than 60% in 2010.

Most hits were on the Index (Home Page), but here are the blog posts with the most hits (Top to Bottom)

Most of these posts are from 2009, but posts with technical information receive more hits than others.


There were certain Deepdive pages (sections) of the blog that have ranked quite high on the list (not considered as blog posts)


Top Browsers

  • Internet Explorer with more than 50% of all the hits
  • Firefox
  • Chrome


Top Operating Systems

  • Windows with more than 80% of all the hits
  • Macintosh
  • Linux
  • .
  • .
  • Android (In-between are iPad, SunOS, iPhone, FreeBSD, Blackberry)


Top Countries

  • US
  • India
  • UK
  • Germany
  • Australia


The Top Sources

  • Obviously


The Top Sources (ISP/ Corporate Networks)

  • EMC Corporation (& Data General Corp & Information Management Group)
  • Comcast
  • Roadrunner
  • HP
  • Hitachi Data Systems

*All stats obtained from Google Analytics


Some StorageNerve Blog Features

  • WordPress Platform
  • 24 different functional Plugins automating and providing rich integration to other apps
  • Customized Search Engine (easy to use and robust results)
  • Customized WordPress iNove theme
  • Blog Translation in 68 languages
  • Odiogo Blog integration for iTunes
  • Guaranteed working Links (no broken links)
  • YouTube, Vimeo, Flickr integration for Videos and Pictures
  • Tweet and Retweet from a blog post
  • Facebook Like Button
  • About (me), LinkedIn profile and Facebook Page links
  • IPhone, Blackberry, iPad Browser friendly blog
  • Other related post links to the post you are reading
  • Deepdive Section
  • Disqus Commenting System
  • Trackbacks
  • Easy Navigation, 3 Clicks to any Blog post
  • Easy Subscription links
  • And much more…


Looking forward to continuing blogging in 2011.

Though there are a few things I need to do which are (work in progress or already in place)

  • Faster Site Reloads
  • Better Search Capabilities
  • Simplified look
  • Keeping navigation clean
  • Engaging in Comments
  • No Google Adwords or other Ads
  • Rich integration with Facebook (through plug-ins)
  • Richer Twitter integration (through plug-ins)
  • Being more regular with blog posts
  • Continuing the Technical Deepdive section
  • And hoping to keep the quality of the posts high


Again thank you for subscribing to the StorageNerve RSS feeds and visiting the blog regularly. I really appreciate all the support, help and assistance you all have provided me in continuing this blog.



First Post of 2011

January 12th, 2011 No comments

Its been a long time…..atleast 3 months since my last blog post.

From taking over a new role at work to spending some quality time with the family and the new baby has been keeping me occupied. But excuses aside, it is time to blog now.

To all of you, HAPPY NEW YEAR!!! Hope 2011 brings new joys, happiness and prosperity in your life.


VSP, Storage Virtualization and other discussions

October 1st, 2010 No comments


Here are a few interviews at the Hitachi Information Forum in Santa Clara, CA during the VSP announcement. During this visit we were given access to HDS Execs and also had a chance to talk to them on Camera and off Camera. Here are a few interviews we were able to capture.


Along with me, my co-host Rick Vanover in these videos

Devang Panchigar {@storagenerve} []

Rick Vanover {@rickvanover} []

Hu Yoshida [}

Roberto Basillo {@rb_hds}

Hitachi Information Forum – Blogger Roundtable from storagenerve on Vimeo.


We also had a chance to talk to Claus Mikkelsen during this event

Along with me, my co-hosts Rick Vanover and Chris Evans in these videos

Devang Panchigar {@storagenerve} []

Rick Vanover {@rickvanover} []

Chris Evans {@chrismevans} []

Claus Mikkelsen {@yoClaus} []

Roundtable discussion on HDS VSP announcement from storagenerve on Vimeo.


During the trip we also had a chance to connect with Dave Vellante from WIkibon on the CUBE and some interesting discussions on the VSP announcement, our trip to Japan and some of the marketing message around the VSP.

You can catchup other CUBE TV videos here

The host

Dave Vellante {@dvellante} []


Devang Panchigar  {@storagenerve} []

Rick Vanover {@rickvanover} []

Watch live video from #theCube from on


It was obviously a fun trip and also good to connect to some industry known faces.

VAAI and Automated Storage Tiering with Storage Virtualization

September 30th, 2010 No comments


Storage Virtualization

Storage Virtualization is sort of a game changer. The more I think about Storage Virtualization and the advantages it brings in storage environments with adding flexibility with migrations, efficiency, automation, management and importantly adds features that your existing storage arrays that might natively not be supported.

Storage Virtualization will take any storage device that is physically connected to it and remap the physical disks to xLUNs. These xLUNs can now take advantage of all the native features of the Storage Virtualization Array (Engine). Features could include creating Storage Groups, Various Raid Types, Site-to-Site Replication, Pooling of disks, Thin Provisioning, Synchronous Copy, Asynchronous Copy, Local Copy, Stripping, Snapshots, VAAI and Automated Storage Tiering. Again doesn’t matter if your existing Storage natively does not support these features.

Two features that every customer wishes they had right now….VAAI and Policy based Automated Tiering (including Sub-LUN Tiering)


Storage Virtualization


Who Supports Storage Virtualization

There are several manufacturers that support Storage Virtualization today. Some of the leading storage virtualization arrays/engines include IBM SVC, EMC VPLEX, HP SVSP, HP P9500, Hitachi USPV/ VSP.



Same can be said about VAAI (vStorage API for Array Integration), an amazing interface that VMware provides for its technology partners to offload rather intense storage related functions natively within storage devices, compared to the old approach where VMware Host did these tasks. This means Storage Processors need to be able to pick up these massive xcopy, lock operations and block zeroing.

Many storage vendors have already provided VAAI support while many have it on their roadmap and have planned release over the next few months. EMC Clariion was supported Day 1, 3Par similarly supports it with 2.3.1 MU2 InForm OS, while HDS supported VAAI on the AMS platform Day 1.


Automated Storage Tiering

Automated Storage Tiering is another great feature to have natively within storage arrays, but not every vendor supports it today.

Not all the data you have, need to be on the fastest tier, but as your application writes data, it can write to the fastest tier and then demote if the data is not being used. Similarly if there is any data that is frequently used, based on the policy can be moved up to a higher tier. So in short if you keep a good balance of SSD’s and SATA drives, you should be able to keep all your applications happy, all your users happy, all your DBA’s happy and importantly meet your SLA’s.

So initially the idea was to offer this at a LUN level. Create policy, if the LUN is busy based on the time of the day or the month of the year, move it to a faster tier. But then followed the concept of Sub-LUN Tiering. Well not the entire LUN needs to be moved, only a certain set of blocks, chunks, pages are hot and they need to be promoted to a faster tier. Helps tremendously reduce your operations on arrays and keeps cache free.

Compellent is considered a market leader in Automated Storage Tiering and were the first ones to take it to the market. Followed by HDS, EMC and 3Par. Not all storage vendors offer LUN tiering and Sub-LUN tiering with its storage platforms today.


Where am I going?

Well, for a second, lets think…..

The storage environment that you might have today, does not support all the needed features your applications and your business may require. Example VAAI and Automated Storage Tiering including Sub-LUN Tiering.

Why not push the physical Storage assets behind these Virtualization arrays / engines and start taking advantages of the native features offered within them including VAAI and Automated Storage Tiering including Sub-LUN Tiering.

If you are anxiously waiting for features from your existing storage vendors, which may be on their roadmap or may have been promised but never delivered, you do have a choice to closely look at Storage Virtualization and take advantages of these features without a major overhaul in your storage environment.