Patent ID: 8510595
Filing Date: 2013-08-13
Classification: G06F,G11C

Abstract:
1. A method, comprising: configuring, by a controller, a plurality of solid state disks as a redundant array of independent disks (RAID), wherein the plurality of solid state disks store a plurality of blocks, and wherein storage areas of the plurality of solid state disks corresponding to at least some blocks of the plurality of blocks Fe different amounts of estimated life expectancies; and including, by the controller, in data structures associated with a block that is to be stored in the storage areas of the solid state disks an indication that indicates how many data drives are present in the RAID, wherein the plurality of solid state disks allocate the block to a storage area based on the estimated life expectancies and the number of data drives, wherein the data structures are included in a Small Computer Systems Interface (SCSI) command descriptor block (CDB), and wherein unused bits of the CDB are used to store the data structures.