Support for TRIM/UNMAP commands for SAS/SATA SSDs Native command queuing Staggered spin-up for SATA drives Hot-plug support Global hot-spare support Online Capacity Expansion (OCE) Online RAID Level Migration (RLM) Automatic rebuild of hot-spare drives; Auto resume during array rebuild; Greater than 2TB logical drive support Soft bad block management Error recovery support S. M. A. R. T. support Physical disk power managem Physical dimensions 167.6 mm ( 6.6 in) x 64.4 mm ( 2.5 in) (low profile)