Feeds

Toshiba claims 2.5-inch disk leadership

Only Seagate got there first

Build a business case: developing custom apps

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. ®

Boost IT visibility and business value

More from The Register

next story
The Return of BSOD: Does ANYONE trust Microsoft patches?
Sysadmins, you're either fighting fires or seen as incompetents now
Microsoft: Azure isn't ready for biz-critical apps … yet
Microsoft will move its own IT to the cloud to avoid $200m server bill
Shoot-em-up: Sony Online Entertainment hit by 'large scale DDoS attack'
Games disrupted as firm struggles to control network
Cutting cancer rates: Data, models and a happy ending?
How surgery might be making cancer prognoses worse
Silicon Valley jolted by magnitude 6.1 quake – its biggest in 25 years
Did the earth move for you at VMworld – oh, OK. It just did. A lot
VMware's high-wire balancing act: EVO might drag us ALL down
Get it right, EMC, or there'll be STORAGE CIVIL WAR. Mark my words
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Endpoint data privacy in the cloud is easier than you think
Innovations in encryption and storage resolve issues of data privacy and key requirements for companies to look for in a solution.
Scale data protection with your virtual environment
To scale at the rate of virtualization growth, data protection solutions need to adopt new capabilities and simplify current features.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?