The recently released Service Ready Engine Virtualization 1.1.1 release adds Raid 0 and Raid 1 support on SM-900 service modules. When installing the SRE-V platform onto the SM-900 service module you may now select from the options of Non-Raid, Raid 0 or Raid 1.
The Non-Raid option allows the system to use both hard drives on the SM-900 to write data, but there is no data protection in case a drive should fail. The Raid 0 option, known as striping, improves performance by dividing data being written to both SM-900 hard drives so that the workload is balanced and therefore more efficient. However, again data is not protected if a hard drive should fail. Only Raid 1 offers data protection via mirroring so that data being written to one drive is mirrored to the other drive meaning that the data written twice, once to drive 1 and again to drive 2. If a hard drive should fail the remaining drive contains the complete data so the data is in effect protected.
Please consult the Installation and Configuration Guide for more information.