Toshiba: Server SSDs SAS12G interface
With first SAS12G products was expected to actually until 2013. But just in time for Santa Clara, California currently held Flash Memory Summit Toshiba announces now already for October first SSDs with the accelerated to 12 Gb / s Serial Attached SCSI (SAS) interface.
For copies of PX02SM series, the manufacturer promises a read speed of 900 MB / s and 120,000 IOPS (input and output operations per second), which then requires however a fitting SAS12G controller. Corresponding copies LSI and PMC-Sierra Division Adaptec had already demonstrated, they stick with specific product announcements, but still returned. When writing plays fast connection does not matter: At 400 MB / s and 30,000 IOPS is theoretically sufficient for the new Toshiba SSDs also SAS6G (6 Gb / s).
For this Toshiba klotzt in memory: Besides versions with 200, 400, 800 GB with 7 mm height that should be available in October for "selected projects" available, the manufacturer will in the course of the fourth quarter and a 1.6-TB SSD deliver the 15-mm case. All data stored in particularly robust eMLC chips from the 24-nanometer manufacturing. For the 400-gigabyte version specified Toshiba a write endurance of 7.3 petabytes in randomly distributed queries - theoretically the life of the SSD five years if they are ten times a day completely overwrites. The probability of failure of 0.44 percent Annual Failure Rate (AFR) is similar to other current server SSDs.
Considerably less robust, but probably cheaper versions are also announced the PX02AM series with 100, 200 or 400 GB and SATA 6G interface. Here is the Write Endurance only 2 petabytes. However, the rate is also much lower: Toshiba promises applicable to them, at best, 500 MB / s (read) and 240 MB / s (write) and 36,000 IOPS (read) and 5,000 IOPS (write). Here the life of the SSD achieved just three years if they are about ten times a day completely overwrites.
These SSDs are just like the series PX03AN (55, 120, 240, 480 GB) intended for use in entry-level servers. The last-mentioned Varianen also work with conventional consumer-grade (CMLC) chips from the 19-nanometer manufacturing and reach compared to PX02AM series depending on storage capacity and 1500 IOPS distributed writes. Prices are not yet well known here.
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