RAID 5 arrays consist of at least three drives configured with the data stored in stripes, in an array with 4 drives, each stripe contains 3 data blocks and a single parity block. For each stripe, the parity block rotates. In the diagram below, you can see that in stripe 'A' parity is on disk 3, on stripe 'B' the parity has rotated to Disk 2. Hence the term 'Striping with rotating parity'.

Data recovery from all types of RAID 5 system including Dell, Compaq, HP, IBM, Fujitsu and all other makes of Server and external SAN and NAS storage systems including proprietary RAID 5 systems

By using our own software we are able to calculate block size, drive order and parity rotation in an instant - no matter how many drives are in the array, and whatever RAID controller is used. Also, our RAID recovery software can automatically repair corrupt firmware, has built-in bad sector detection and data consistency checking, all performed during hard disk imaging. This means we can rebuild the best possible image from the drives without bad sectors resulting in maximum quality data recovery.