Start-up Pure Storage emerges with all-SSD array
The SSD array can achieve up to 3GB/sec throughput
Computerworld - Start-up Pure Storage today emerged from development mode to announce an all-solid state drive (SSD) storage array that it said challenges traditional hard drive-based systems on price and blows them away on performance.
Pure Storage claims its FlashArray (FA)-300 series arrays are 10 times faster and 10 times more space efficient than disk-based arrays, reducing the amount of inline data by up to 20 times through deduplication and compression algorithms. The rack-mountable array also uses one-tenth the power of a traditional storage array, the company said.
The FA-300 series use Samsung consumer-grade, multi-level cell (MLC) flash-based SSDs, but the company adds its own clustered array controllers, with an active-active configuration, managed by its own software called Purity. The software offers the ability to thin provision capacity to applications, meaning it can supply additional capacity on a need-only basis instead of the more traditional practice of overprovisioning.
The arrays include the FA-310 and FA-320 models, which respectively offer up to 5.5TB and 11TB of raw capacity natively, but can also double their capacity with expansion trays. Using deduplication, Pure Storage claims the arrays can store the equivalent of between 25TB and 200TB.
A single 2U (3.5-in high) FlashArray can achieve a maximum of 300,000 read I/Os per second (IOPS) and up to 180,000 write IOPS. Measured another way, the FA-310 can achieve up to 2GBps sequential read and 1Gbps write rates. The model 320 can achieve up to a 3GBps read rate and a 1.5GBps write rate. A company spokesman said the arrays can sustain the latter I/O rates 24 hours a day for five to seven years.
The company said it can offer SSD capacity at $5 per gigabyte based on an 11TB array, but that pricing is achieved through the use of a 5:1 data reduction ratio; it's not based on raw storage capacity. The pricing also includes data RAID overhead and high availability (HA) overhead. The company refused to release actual pricing for the array, saying it was not "finalized."
Based on the $5-per-gigabyte figure, an 11TB array would retail for $55,000.
The Pure Storage said its FlashArray delivers HA by automatically rebalancing application workloads across remaining controllers in the event of a controller failure, including the completion of any writes still residing in NVRAM.
The company is aiming the all-flash storage array at mainstream corporations dealing with increasing application workloads due to server virtualization, virtual desk top infrastructures (VDI), databases and cloud computing.
Matt Kesner, CIO at the lawfirm of Fenwick & West in San Francisco, said his company has experienced "amazing results" using Pure Storage in its data centers. "The FlashArray has reduced our data between 50% to 90% on a variety of workloads, ranging from VMware virtual machines to Microsoft Exchange and SQL, as well as reduced our physical storage footprint far beyond our expectations," he said in a statement.
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