The mr_sas MegaRAID SAS2.0 controller host bus adapter driver is a SCSA-compliant nexus driver that supports the LSI MegaRAID SAS 92xx series of controllers and the StorageTek 6Gb/s SAS RAID HBA series of controllers and the LSI MegaRAID SAS 92xx series of controllers.
Some of the supported RAID features include:
RAID levels 0, 1, 5, and 6, and RAID spans 10, 50 and 60
Online capacity expansion (OCE)
Online RAID level migration (RLM)
Auto resume after loss of system power during array rebuild or reconstruction (OCE or RLM)
Configurable stripe size up to 1 Mbyte
Capability to check consistency for background data integrity
Patrol read for media scanning and repairing
64 logical drive support
Up to 64 TB LUN support
Automatic rebuild, and global and dedicated hot—spare support