Feeds

Tegile's tech trajectory: All-flash function in hybrid mutant body

Two new array systems coming

Choosing a cloud hosting partner with confidence

Hybrid array startup Tegile has a new system coming that will provide all-flash array functionality within its hybrid architecture.

CTO Rajesh Nair said two new systems were coming: one in a couple of months and a second one by the end of 2014. He provided some details. The first one will be a companion to the existing high-end HA2800 and will feature:

  • top tier of up to 20TB of eMLC flash and
  • a 2-tier existing hybrid scheme with about 20 per cent faster flash tier and to 120 hard disk drives (150TB).

The two flash chunks of storage have separate suppliers and use 19nm and 22nm NAND respectively. Nair said this is a moving target, implying other flash geometries could be used in future. The flash will have endurance over the warrantied five years of more than 3.5PB written. With larger capacity drives, the endurance could be pushed out to seven years.

The chief tech officer added separately that Zebi array total capacity would rise to half a petabyte (500TB) in the near future: "Most likely we'll be using [HGST] He6 drives. We're looking at them. ... Their cost has to come close to nearline enterprise SAS drives today," he said – presumably with Tegile willing to pay a realistic premium.

We could loosely think of this system as a Zebi HA28000 with a 20TB separate flash tier added – we believe this is 19nm flash – which can be used to hold entire working data sets for applications such as transaction databases, and by so doing provide all-flash acceleration to workloads that need it. Nair said that instead of walking away from such workloads and ceding the business to all-flash array vendors, Tegile will be able to compete for such business with one product – and offer hybrid array advantages as well.

Where customers would usually need to have a performance-optimised all-flash array and separate capacity-optimised storage, they will be able to have a single Tegile array offering both modes of storage, he added.

As with the Zebi HA2800, there will be two active:active controllers and one will be dedicated to the all-flash tier with the other dedicated to the hybrid tier.

The second new system will arrive towards the end of 2014 and will replace the existing SSDs with lower-latency dual-port, 2.5-inch form factor PCIe interface SSDs. The dual-porting is needed for high availability. Some 80 per cent of drives in the system will be SAS-interface hard disks with the rest being PCIe SSDs.

Nair thinks PCIe SSDs will be the norm a year from now. There are two PCIe SSD suppliers lined up for this Zebi system. Micron, Toshiba and Samsung are involved with PCIe SSDs as are two Tegile investors: Western Digital and SanDisk.

The technology "negates the investment Violin and Skyera have made in building their own PCIe switches".

He sees such PCIe SSDs restricting server ULLtraDIMM technology to just 1 per cent of the market.

He also sees dual lane SAS interfaces moving to four lanes and providing a doubling of bandwidth to 24 Gbit/s, with lower latencies as well. This should happen by the end of the year.

Nair provided a brief overview of some competitors, claiming:

  • with Nimble Storage flash functions as a read layer and there is no deduplication,
  • Tintri flash functions as both a read and write layer with dedupe only for SSDs, not for the disk drives,
  • Tegile deduplicates all data in its arrays inline,
  • NetApp's dedupe is a post-process operation,
  • Ditto EMC's VNX.

It will be fascinating to see if Nimble Storage and Tintri adopt a similar roadmap, and include all-flash array functionality inside their systems. If they do, then the pressure will be on all-flash array vendors to go hybrid too as the pure all-flash array market would shrink. Retrofitting hybrid, multi-tier functionality to their operating systems could be problematic. ®

Beginner's guide to SSL certificates

More from The Register

next story
Just don't blame Bono! Apple iTunes music sales PLUMMET
Cupertino revenue hit by cheapo downloads, says report
The DRUGSTORES DON'T WORK, CVS makes IT WORSE ... for Apple Pay
Goog Wallet apparently also spurned in NFC lockdown
Cray-cray Met Office spaffs £97m on VERY AVERAGE HPC box
Only 250th most powerful in the world? Bring back Michael Fish
Microsoft brings the CLOUD that GOES ON FOREVER
Sky's the limit with unrestricted space in the cloud
'ANYTHING BUT STABLE' Netflix suffers BIG Europe-wide outage
Friday night LIVE? Nope. The only thing streaming are tears down my face
IBM, backing away from hardware? NEVER!
Don't be so sure, so-surers
Google roolz! Nest buys Revolv, KILLS new sales of home hub
Take my temperature, I'm feeling a little bit dizzy
prev story

Whitepapers

Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
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?
New hybrid storage solutions
Tackling data challenges through emerging hybrid storage solutions that enable optimum database performance whilst managing costs and increasingly large data stores.
Getting ahead of the compliance curve
Learn about new services that make it easy to discover and manage certificates across the enterprise and how to get ahead of the compliance curve.