Feeds

Seagate picks LSI for flash controller

SSD System-on-Chip designs

HP ProLiant Gen8: Integrated lifecycle automation

Aspiring solid state drive (SSD) shipper Seagate has picked LSI to supply it with controller silicon for its SSDs.

LSI supplies System-on-Chip (SoC) technology - custom silicon chips - to Seagate and others to control hard disk drives and their I/O (pictured below). They are placed inside the drive enclosure. They read signals from the drive, check for and correct any errors, package up the data bits and deliver them through SAS or Fibre Channel interfaces, via a DRAM buffer, to waiting host computers. These include storage array controllers, PCs and servers. Data coming the other way is passed through the SoC to the hard drive.

LSI hard drive System-on-Chip controllerTypically there are two ARM microprocessors in an LSI SoC: one to control the drive's servo motor and the other to manage data flow to and from the host interface.

There is no need for servo motor control in an SSD with NAND chips, but there is a need to manage the placement of data on the chips and the wear-levelling needed to maximise NAND chip life. The SSD SoC will also contribute to the SSD's read and write rates.

Seagate has awarded multiple contracts to LSI for notebook, desktop and enterprise hard drive SoCs. It has gone to the same company for its SSD controllers. The Seagate SSD is expected to ship in 2009, with LSI talking cryptically of "two future generations of SoC designs targeting the enterprise space that were previously awarded to LSI and are expected to ship in 2010".

Seagate could have gone to suppliers with proven SSD controller skills, such as STEC, which supplies EMC, or Marvell, which supplies notebook SSD controllers. Instead it has gone to a supplier it knows very well for HDD SoCs but which is untested on flash drive SoCs, though it has produced HBAs for an iGLASS SSD application. It's a big bet by Seagate. ®

Reducing security risks from open source software

More from The Register

next story
Sysadmin Day 2014: Quick, there's still time to get the beers in
He walked over the broken glass, killed the thugs... and er... reconnected the cables*
SHOCK and AWS: The fall of Amazon's deflationary cloud
Just as Jeff Bezos did to books and CDs, Amazon's rivals are now doing to it
Amazon Reveals One Weird Trick: A Loss On Almost $20bn In Sales
Investors really hate it: Share price plunge as growth SLOWS in key AWS division
US judge: YES, cops or feds so can slurp an ENTIRE Gmail account
Crooks don't have folders labelled 'drug records', opines NY beak
Auntie remains MYSTIFIED by that weekend BBC iPlayer and website outage
Still doing 'forensics' on the caching layer – Beeb digi wonk
BlackBerry: Toss the server, mate... BES is in the CLOUD now
BlackBerry Enterprise Services takes aim at SMEs - but there's a catch
The triumph of VVOL: Everyone's jumping into bed with VMware
'Bandwagon'? Yes, we're on it and so what, say big dogs
Carbon tax repeal won't see data centre operators cut prices
Rackspace says electricity isn't a major cost, Equinix promises 'no levy'
prev story

Whitepapers

Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
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.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
Seven Steps to Software Security
Seven practical steps you can begin to take today to secure your applications and prevent the damages a successful cyber-attack can cause.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.