Feeds

Adaptec trickles RAID RoCket fuel into new Xeons

PCIe 3 is I/O gulper

High performance access to file storage

CeBIT It all came together at CeBIT for Adaptec with a searingly fast 6.6GB/sec supply of data across a PCIe gen 3 bus to a Xeon E5-2600 server – twice as fast as gen 2 PCIe servers.

The configuration for the demo used a prototype SRVc RAID-on-Chip (RoC) card from Adaptec, now owned by PMC-Sierra, hooked up to a server using Intel's shiny new Xeon E5-2600 processors via this PCIe gen 3 bus, which runs at 8 gigatransfers/sec rather than gen 2's slightly more pedestrian 5GT/sec.

Twenty-four 6Gbit/s SAS ports come out of the back of the SRVc and 22 of them hooked up to Seagate Pulsar.2 SSDs. Each of these 2-bit MLC drives can do 370MB/sec sequential reads and 200MB/sec sequential writes. We're not told the capacity of the drives which start at 100GB and go up to 800GB.

If they were 800GB then total capacity would have been 17.6TB. These SSDs do 48,000 random read IOPS and 15,000 random writes. Twenty-two of them would collectively output 8.14GB/sec sequential read data if driven at full speed.

Bearing in mind that Dell is using hot-swap Micron PCIe gen 2-interface SSDs in its 12th generation servers, we can see the possibilities. PCIe gen 3-equipped, Xeon E5-2600 servers will have an awesome capacity to suck in data. Interfacing them to disk drive arrays would seem to be putting them on a starvation diet. They are going to need flash because that's the only storage medium that can keep up with their gargantuan appetite for data.

Marvell has got to be planning a PCIe gen 3 controller already. Seagate will know-all about Micron's new PCIe-interface SSD and will surely be thinking of adding its own PCIe interface to its Pulsars. A Xsigo spokesperson said: "We won't be doing PCI-E sharing, no (as it doesn't work well), but InfiniBand 56Gb and 80Gb need PCI-E v3 for bandwidth: that's due soon."

The message for storage array vendors is to do as EMC, NetApp and Nexsan have done and get a flash front end for your storage offering. For the flash array, SSD and flash card vendors, a PCIe 3 interface will become mandatory if you are going to be up with the front runners in the server flash speeds and feeds race. ®

High performance access to file storage

More from The Register

next story
Seagate brings out 6TB HDD, did not need NO STEENKIN' SHINGLES
Or helium filling either, according to reports
European Court of Justice rips up Data Retention Directive
Rules 'interfering' measure to be 'invalid'
Dropbox defends fantastically badly timed Condoleezza Rice appointment
'Nothing is going to change with Dr. Rice's appointment,' file sharer promises
Cisco reps flog Whiptail's Invicta arrays against EMC and Pure
Storage reseller report reveals who's selling what
Bored with trading oil and gold? Why not flog some CLOUD servers?
Chicago Mercantile Exchange plans cloud spot exchange
Just what could be inside Dropbox's new 'Home For Life'?
Biz apps, messaging, photos, email, more storage – sorry, did you think there would be cake?
IT bods: How long does it take YOU to train up on new tech?
I'll leave my arrays to do the hard work, if you don't mind
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.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
HP ArcSight ESM solution helps Finansbank
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Mobile application security study
Download this report to see the alarming realities regarding the sheer number of applications vulnerable to attack, as well as the most common and easily addressable vulnerability errors.