Feeds

Symantec gives 3PAR helping hand

Giant pushes fat-to-thin process

Securing Web Applications Made Simple and Scalable

It turns out 3PAR needed a bit of help to get its fat-to-thin process working properly.

The latest T-class InServ storage array has clever hardware that turns an incoming fat volume into a thin one. This means that if you migrate a storage volume from some other array that does not have thin provisioning - a fat volume - then it automatically becomes a thin volume on the T-class because its contents pass through the hardware and repeated zeroes are stripped out, leaving just the actual written data in the volume.

That's lovely, only it isn't totally and ecstatically lovely because some of that written data could be deleted files. In fact quite a lot of it could be deleted files. Slow operating systems like Windows take shortcuts to keep the speed up. When they delete a file they sprint off to the disk, set a delete flag in the file header, sprint back again and say: "What's next?" without actually deleting the file at all. So it's full of data bytes instead of zeroes.

Cue migration to the T-class Inserv, and this Windows laziness completely defeats the fancy new 3PAR hardware which doesn't know a deleted file from a pain in the rear, which it is.

So 3PAR has got together with Symantec and its latest Veritas Storage Foundation volume manager product. What you do is use Storage Foundation's SmartMove to migrate the storage volume to the T-class. It detects the delete flag in files in the volume and doesn't send them to the T-class. What a smart move.

Symantec has also announced a Thin Reclamation API which can be used to trawl thinly-provisioned volumes and remove all the space taken up by deleted files. It returns this space to the array's central pool, thus ensuring your thin volume remains at its anorexic thinnest. You just run the thing every so often, much like defragging a PC's hard drive. Neat.

Symantec's SmartMove and Thin Reclamation API work with any thinly-provisioned storage array in principle. 3PAR is Symantec's first storage array partner to use it with HDS and HP issuing approving quotes in the Symantec release. They'll have it available as soon as they can get their array software working with the Symantec software.

Both SmartMove and the Thin Reclamation API are included in the latest version of Storage Foundation. It's available now and costs $695 per server. Um. So if you have 1,000 servers that's $695,000. Better not thinly provision your wallet. ®

The Essential Guide to IT Transformation

More from The Register

next story
Manic malware Mayhem spreads through Linux, FreeBSD web servers
And how Google could cripple infection rate in a second
EU's top data cops to meet Google, Microsoft et al over 'right to be forgotten'
Plan to hammer out 'coherent' guidelines. Good luck chaps!
US judge: YES, cops or feds so can slurp an ENTIRE Gmail account
Crooks don't have folders labelled 'drug records', opines NY beak
FLAPE – the next BIG THING in storage
Find cold data with flash, transmit it from tape
Seagate chances ARM with NAS boxes for the SOHO crowd
There's an Atom-powered offering, too
Gartner: To the right, to the right – biz sync firms who've won in a box to the right...
Magic quadrant: Top marks for, er, completeness of vision, EMC
prev story

Whitepapers

Top three mobile application threats
Prevent sensitive data leakage over insecure channels or stolen mobile devices.
The Essential Guide to IT Transformation
ServiceNow discusses three IT transformations that can help CIO's automate IT services to transform IT and the enterprise.
Mobile application security vulnerability report
The alarming realities regarding the sheer number of applications vulnerable to attack, and the most common and easily addressable vulnerability errors.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
Consolidation: the foundation for IT and business transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.