Information stored along with data that allows the to reconstruct lost data.
uses mirroring for redundancy. and use redundancy information, sometimes called consistency, that is constructed from the data bytes and striped along with the data on each disk.
A consistency check, performed by selecting Advanced >> Recovery >> Check Disk Group Consistency:
Scans the blocks in a RAID 3 or 5 and checks the redundancy information for each block.
-OR-
Compares data blocks on RAID 1/10 mirrored physical disks.
For more information, see Checking Data Redundancy on a Disk Group on the How To tab.