Feeds

Toshiba claims 2.5-inch disk leadership

Only Seagate got there first

Beginner's guide to SSL certificates

Toshiba claims it has launched "the highest capacity 2.5-inch drive to date", at 640GB.

Well, maybe not. Seagate quietly launched a 640GB, 2.5-inch FreeAgent Go in June and Western Digital's Scorpio Blue is a 1TB 2.5-inch drive which was announced in July.

As Reg Hardware notes the new MK6465GSX Tosh drive has two platters, uses the 3Gbit/s SATA interface, and its 640GB comes courtesy of a 528.5Gbit/sq in areal density, delivering 320GB/platter.

Seagate's 640GB FreeAgent Go product apparently uses an un-announced Momentus 5400.7 drive. The previous, or current, Momentus 5400.6 drive tops out at 500GB, or 250GB/platter, and has an areal density of 394Gbit/sq in.

Taking the 28 per cent increase in capacity represented by a 500GB to 640GB uplift, that would put the 5400.7 drive's areal density at 504.32Gbit/sq in; Toshiba then leading Seagate in the 2.5-inch areal density stakes.

Seagate apparently has a 1TB 2.5-inch drive coming, although the number of platters, and hence the areal density, are not known.

The Tosh drive's capacity is also exceeded by Western Digital's Scorpio Blue. This 2.5-inch drive needs three platters to achieve its 1TB, and so has at least a 333GB/platter capacity, suggesting its platter capacity is higher than Toshiba's although its areal density might be less.

Toshiba is looking into the capacity leadership claim. There can be quite a big difference between announcement dates and ship dates, though. ®

Security for virtualized datacentres

More from The Register

next story
It's Big, it's Blue... it's simply FABLESS! IBM's chip-free future
Or why the reversal of globalisation ain't gonna 'appen
'Hmm, why CAN'T I run a water pipe through that rack of media servers?'
Leaving Las Vegas for Armenia kludging and Dubai dune bashing
Microsoft and Dell’s cloud in a box: Instant Azure for the data centre
A less painful way to run Microsoft’s private cloud
Facebook slurps 'paste sites' for STOLEN passwords, sprinkles on hash and salt
Zuck's ad empire DOESN'T see details in plain text. Phew!
CAGE MATCH: Microsoft, Dell open co-located bit barns in Oz
Whole new species of XaaS spawning in the antipodes
AWS pulls desktop-as-a-service from the PC
Support for PCoIP protocol means zero clients can run cloudy desktops
prev story

Whitepapers

Choosing cloud Backup services
Demystify how you can address your data protection needs in your small- to medium-sized business and select the best online backup service to meet your needs.
Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.