METHOD TO INCREASE THE FLEXIBILITY OF CONFIGURATION AND/OR I/O PERFORMANCE ON A DRIVE ARRAY BY CREATION OF RAID VOLUME IN A HETEROGENEOUS MODE

摘要

An apparatus comprising a controller and a plurality of storage drives. The controller may be configured to generate a control signal in response to one or more input/output requests. The plurality of storage drives may be arranged as one or more volumes. Each of the volumes may comprise a plurality of drive groups. Each of the drive groups may comprise a particular type of storage drive. The controller may be configured to form the volume across drives from two or more of the groups.