Feeds

TMS buckles up first MLC flash product

Suffering from smeary stripe? This cleans up in stride

Protecting against web application threats using SSL

News from the flash front: TMS has a more affordable small flash SAN product that's higher capacity than the RamSan 710 speed rocket.

The multi-level cell (MLC) RamSan-810, has MLC flash replacing the faster single-level cell (SLC) in the 710 which was announced in June.

TMS has its RamSan-630 product for large SANs, the 710 and now 810 for smaller SANs, and RamSan-70 for direct PCIe-attached server flash.

TMS RamSan-810

The company is seeing that enterprise-grade MLC (eMLC) is now reliable, fast enough and has a long enough endurance to be used alongside its SLC-based product range. MLC flash, with its 2 bits per cell, is slower than SLC, more affordable, yet has a shorter endurance. Controller technology, such as signal processing to better read data from MLC cells, and over-provisioning, up to 30 per cent, can compensate for this.

TMS has variable stripe RAID (VSR) technology which dynamically varies the RAID stripe length to bypass one or more failed flash chips, dies or planes. Each RamSam NAND chip has 8 dies in it. One or more dies can fail but the controller can carry on using the other dies.

VSR is a technique to bypass single or multiple bad chips, dies or planes anywhere in the RAID stripe. Flash, compared to hard disk drives, is so fast that such RAID system reconstruction can be carried out dynamically.

The 1U rackmount RamSan-810 has up to 10TB of usable capacity, based on Toshiba eMLC NAND, and provides 320,000IOPS with 4GB/sec bandwidth. It has four I/O ports; 8Gbit/s Fibre Channel or quad data rate InfiniBand, and uses the same controller as the 710.

A rack stacked with 810s would have half a petabyte of flash capacity.

In endurance terms the 810 can sustain five full writes a day for ten years. In capacity terms it has double the 710's 5TB and is up with the 630's 10TB. It seems apparent that an eMLC version of the RamSan-630 could come along, with 20TB capacity. TMS CEO Holly Frost said: "It sure looks that way, doesn't it."

We could also conceive of an MLC version of the RamSan-70 with a 1.8TB capacity.

Frost believes that eMLC products will expand TMS's addressable market and not cannibalise the SLC products. He says the 810 is a good for for applications such as data warehousing and acquisition, web content hosting, and other apps needing lots of I/O reads but fewer writes.

TMS seems to have a steady rate of product introductions, with a new product coming along every three or four months. On that basis we can look forward to another RamSan something by the end of the year.

The RamSan-810 is priced at half the cost per TB of the 710, with a 10TB RamSan-810 costing the same as a 5TB 710. ®

Choosing a cloud hosting partner with confidence

More from The Register

next story
Wanna keep your data for 1,000 YEARS? No? Hard luck, HDS wants you to anyway
Combine Blu-ray and M-DISC and you get this monster
US boffins demo 'twisted radio' mux
OAM takes wireless signals to 32 Gbps
Google+ GOING, GOING ... ? Newbie Gmailers no longer forced into mandatory ID slurp
Mountain View distances itself from lame 'network thingy'
Apple flops out 2FA for iCloud in bid to stop future nude selfie leaks
Millions of 4chan users howl with laughter as Cupertino slams stable door
Students playing with impressive racks? Yes, it's cluster comp time
The most comprehensive coverage the world has ever seen. Ever
Run little spreadsheet, run! IBM's Watson is coming to gobble you up
Big Blue's big super's big appetite for big data in big clouds for big analytics
Seagate's triple-headed Cerberus could SAVE the DISK WORLD
... and possibly bring us even more HAMR time. Yay!
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
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?
The next step in data security
With recent increased privacy concerns and computers becoming more powerful, the chance of hackers being able to crack smaller-sized RSA keys increases.