Storage Soup

Mar 25 2010   9:06PM GMT

Atrato tweaks SSD features

Beth Pariseau Beth Pariseau Profile: Beth Pariseau

Editor’s note: After this blog was initially published, Atrato alerted us to a misunderstanding about the GA date of certain features. The corrected text is below.

 

Self-healing array maker Atrato Inc. is finally making updating its support for solid-state drives and automated tiered storage generally available, a year after it first promised them.

Atrato issued a press release announcing general availability of new SSD units and automated tiered storage software Wednesday, after going back to the drawing board a few times a series of incremental releases following last year’s similar announcement, according to vice president of marketing Bill Mottram.

Atrato originally aimed for released SSD support last May, “but there was more complexity involved in the product than we anticipated,” Mottram said. Atrato’s hybrid VLUN, which spans across solid-state and spinning disks required some tweaks for performance, including a new feature being released this week called “I/O reforming,” which takes blocks of multiple sizes and bundles them into a fixed block size of 256 KB. Mottram said this speeds up moves between SSD and HDD tiers.

Atrato’s arrays are constructed out of enclosures stacked into what it calls a Self-maintaining Array of Identical Disks (SAID). These enclosures, which previously held 10 disks each, are now available with room for 24 drives. Atrato’s SSD enclosure holds 10 or 24 drives, and it now offers multiple configuration options depending on the level of performance or capacity needed.

The updated Velocity 1000 will also support up to four SSD enclosures, whereas last year support was announced for one.

Last year Atrato said it would support Intel’s X-25 E and X-25 M SLC and MLC drives, but now says it will only support the SLC version, as well as 150 GB drives from Pliant on customer request.

A redesign of the V1000 backplane has also boosted Atrato’s performance benchmark claims for the array from 16,000 IOPS to 24,000 IOPS. “It has to do with how we move data within the SAID,” Mottram said, declining to disclose further technical detail.

One feature Atrato customers have asked for, a graphical user interface (GUI) to control the box, remains a roadmap item but should be released toward the end of next month, Mottram said. Until then, the V1000 will continue to be managed through a command-line interface (CLI).

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