Feeds

WD fattens up S25 with third juicy platter

3G drive swells up to 900GB

SANS - Survey on application security programs

The third generation S25 drive from Western Digital has had a third platter added to reach the 900GB capacity point.

WD's S25 is a 2.5-inch enterprise disk drive spinning at 10,000rpm with a 6Gbit/s SAS interface. It comes in 150, 300 and 600GB capacity points and competes with Seagate's Savvio 10K – the 10K.4 600GB version of which has three 200GB platters compared to the second generation S25's 600GB with two platters.

However Seagate announced a 900GB Savvio 10K.5 in March last year, with 3 x 300GB platters using 506Gbit/in2 areal density, and a self-encrypting drive (SED) option. Then Hitachi GST went the 3-platter route with its Ultrastar C10K900 drive, with SED and the 6Gbit/s SAS interface. WD had to raise its game. There were two possible routes: move to 450GB or 500GB platters and produce a 900GB/1TB SV25 or go the added platter route.

It has chosen to add platters and the third generation SV25, with 300, 450, 600 and 900GB capacity points and 32MB cache, also has the SED option. Its transfer speed is 204MB/sec, compared to the second generation S25's 128MB/sec, and WD says it has a 2 million hour MTBF rating, an industry high.

Seagate's Savvio is unique among this 3-platter threesome in that it has a 4Gbit/s Fibre Channel interface as well as the SAS one. As Fibre Channel disk connectivity is thought to be on the way out, that is likely to remain a Seagate-only attribute.

With WD buying Hitachi GST and the acquisition being closed tomorrow, why has WD introduced a drive that competes with the Hitachi GST Ultrastar? It's surely partly because the Chinese competition regulators require Hitachi GST to operate independently of WD for two years, which includes separate research and development activities, and so we will have the ludicrous situation of a parent competing with its own arms-length subsidiary.

This S25 move sparks off thoughts of a 900GB Velociraptor, since Velociraptor is a10K, 2.5-inch drive with 150GB to 600GB capacity points and two platters. Its users would sure appreciate the added data velocity a third platter would give them. ®

3 Big data security analytics techniques

More from The Register

next story
This time it's 'Personal': new Office 365 sub covers just two devices
Redmond also brings Office into Google's back yard
Kingston DataTraveler MicroDuo: Turn your phone into a 72GB beast
USB-usiness in the front, micro-USB party in the back
IBM rides nightmarish hardware landscape on OpenPOWER Consortium raft
Google mulls 'third-generation of warehouse-scale computing' on Big Blue's open chips
It's GOOD to get RAIN on your upgrade parade: Crucial M550 1TB SSD
Performance tweaks and power savings – what's not to like?
AMD's 'Seattle' 64-bit ARM server chips now sampling, set to launch in late 2014
But they won't appear in SeaMicro Fabric Compute Systems anytime soon
prev story

Whitepapers

Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Mainstay ROI - Does application security pay?
In this whitepaper learn how you and your enterprise might benefit from better software security.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.