The new 6 Gbps 2.5-inch CloudSpeed Eco, Ascend, Ultra and Extreme SATA solid-state drives (SSDs) are part of the company's 19 nm SSDs, optimized for read-intensive, mixed-use and write-intensive application workloads in cloud compute infrastructures. The Ascend and Eco are for read-intensive workloads, and the Extreme is for applications that are write-intensive, such as high-performance computing, media editing and data warehousing. The Ultra SSD is for mixed use.
All the CloudSpeed drives use multi-level cell (MLC) flash.
"This allows for greater granularity on the application it fits," said Brian Cox, senior director of marketing at SanDisk enterprise storage solutions. "This is about matching your workloads to the right SSD."
Cox said SanDisk has design wins with OEM partners for the new SSDs, but none have yet publicly announced deals.
The new models will replace SanDisk's CloudSpeed 1000 and 1000E SATA SSDs.
The CloudSpeed Eco SATA SSDs are for entry-level enterprise, hyperscale and cloud data centers with Web servers, Web content repositories, photo sharing, media streaming and cloud computing. The Ascend drives are designed for file servers, Web-based applications and virtual tape libraries (VTL).
Both the Ascend and Eco SSDs are available in capacities of 240 GB, 480 GB and 960 GB. Both models support up to 450 MBps sequential reads and writes, with a performance of up to 80,000 IOPS random reads and writes. They also both support one disk write per day (DWPD). The main differences between the two are the Ascend has 2.5 million hours mean time between failure (MTBF) and a five-year warranty, while the Eco has a two-million-hour MTBF and a three-year warranty.
The Ultra SSDs are available in capacities of 200 GB, 400 GB and 800 GB with data transfer rates of up to 450 MBps sequential reads and writes, and a performance of up to 80,000 IOPS random reads and writes. It supports three DWPD.
The CloudSpeed Extreme comes in capacities of 100 GB, 200 GB, 400 GB and 800 GB. It has the same performance as the Ultra, but the highest endurance of the line with 10 DWPD.
The Ultra and Eco SSDs each have 2.5 million hours MTBF and a five-year warranty.
"Extreme has a higher endurance because it takes a lot of writes," Cox said. "What tends to wear down SSDs is write operations. Companies like Yahoo and Netflix don't deal with high writes very often, so they don't need as high endurance. Both Eco and Ascend are for read-intensive environments."
The new CloudSpeed SSDs are scheduled for availability in May.