As a higher capacity drive, the previously released M500 was also positioned for use in consumer products and for Web 2.0 applications in businesses. Because of that the M500 was tuned for higher read performance and endurance, rather than write endurance. The new P400m is tuned for a more even read/write mix to address applications such as big data analytics and virtualized server infrastructures.
Using 128K transfer blocks, the P400m has a maximum sequential read speed of 350MB/s, and a sequential write speed of 300MB/s. Using 4K block sizes, the SSD has a maximum random read performance of 55,000 I/Os per second (IOPS) and a random write rate of up to 16,000 IOPS.
The backside of the P400m SSD.
The P400m comes in 100GB, 200GB and 400GB capacities. Micron said pricing would be competitive with other SATA-based server-class SSDs on the market, but would not release specific prices for the drive.
Lucas Mearian covers storage, disaster recovery and business continuity, financial services infrastructure and health care IT for Computerworld. Follow Lucas on Twitter at @lucasmearian or subscribe to Lucas's RSS feed. His e-mail address is email@example.com.
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