bit-tech.net

HGST to demo SAS-12Gb/s SSDs

HGST to demo SAS-12Gb/s SSDs

HGST's new SAS-12Gb/s SSDs, due for commercial launch in 2013, promise serious speed for enterprise users.

Hitachi Global Storage Technologies (HGST), now a wholly-owned subsidiary of Western Digital, has announced the latest must-have device for enterprise users with cash to burn: the world's first solid-state drive (SSD) with a SAS-12Gb/s interface.

A popular interface in enterprise storage system, Serial Attached SCSI (SAS) provides Small Computer Systems Interface (SCSI) control over a modified version of the Serial Advanced Technology Attachment (SATA) connector. Designed for large-scale storage systems, SAS is hardly rare - but a drive that supports SAS-12Gb/s is news indeed.

As the name suggests SAS-12Gb/s supports data transfer at rates of up to 12Gb/s, or around 4.8GB/s. Compared to traditional SAS and SATA implementations, which max out at 6Gb/s, that's a not-inconsiderable leap for users who need ultra-low latency storage.

Sadly, HGST and parent company Western Digital is remaining quiet on the specifications of the actual SSD itself. With most SSDs available on the market today peaking at around 500MB/s, it seems unlikely that the device the company is about to unleash upon the world will come close to saturating the new high-speed bus for everything except cache access.

Nevertheless, interface makers LSI and PMC have come forward in praise of HGST's creation - hardly surprising, given the company has been using both companies' host bus adapters (HBAs) for testing. 'We have been working closely with HGST on interoperability testing,' claimed PMC's Derek Dicker of the announcement, 'and the high-performance benefits of our 12Gb/s SAS solutions, coupled with HGST’s 12Gb/s SAS drives, will enable a new generation of cutting-edge, scalable tiered storage for corporate and cloud datacentres.'

'As the preferred enterprise interface of the future,' added LSI's Bill Wuertz, '12Gb/s SAS will be essential to unleashing the full performance potential of SSD storage solutions to help datacentres and cloud environments contend with massive data growth and accelerate application performance.'

HGST is due to demonstrate its SAS-12Gb/s drives at the SCSI Trade Association Technology Showcase in California next week. Industry adoption of SAS-12Gb/s is expected to pick up pace in 2013, but there is currently no clue on when the consumer equivalent SATA-12Gb/s will be ready - and affordable - for home use.

6 Comments

Discuss in the forums Reply
jakobfrimmel 3rd May 2012, 02:09 Quote
hmmm im assuming performance on this level wont be available to us mere mortals in the near future :(
IvanIvanovich 3rd May 2012, 03:44 Quote
I wish they would make 12GB/s SAS DDR3 drive instead in 64GB+ capacity.
TheUn4seen 3rd May 2012, 13:40 Quote
Since when 12Gb/s equals 4.8GB/s (as stated in the third paragraph)?
Gareth Halfacree 3rd May 2012, 13:43 Quote
Quote:
Originally Posted by TheUn4seen
Since when 12Gb/s equals 4.8GB/s (as stated in the third paragraph)?
Don't look at me - those figures are direct from Hitachi. You and I both know that 12Gb/s = 1.5GB/s, but Hitachi reckons its demo will be running at 4.8GB/s and I don't have enough details to claim otherwise.

I'll be watching to see what they're actually showing off on the 9th, though...
Bloody_Pete 5th May 2012, 13:16 Quote
It could be like the Revodrives with multi RAID SSD's, that'd saturate that connection...
ethquake 5th June 2012, 05:14 Quote
Quote:
Originally Posted by Gareth Halfacree
Quote:
Originally Posted by TheUn4seen
Since when 12Gb/s equals 4.8GB/s (as stated in the third paragraph)?
Don't look at me - those figures are direct from Hitachi. You and I both know that 12Gb/s = 1.5GB/s, but Hitachi reckons its demo will be running at 4.8GB/s and I don't have enough details to claim otherwise.

I'll be watching to see what they're actually showing off on the 9th, though...
If there's no surprise, 4.8GB/s should refer to 2x lanes bi-directional aggregation with 12Gb/s data rate each lane, each direction (TX or RX).
Log in

You are not logged in, please login with your forum account below. If you don't already have an account please register to start contributing.



Discuss in the forums