Retrodata recover corrupt RAID data from any RAID level.
Hybrid RAID levels are simply those that mix two different levels of RAID within the same array. For example, two RAID 3 servers that have been striped are known as RAID 30.
RAID 0+1. Also known as RAID 01. Configured as mirrored striped arrays. Minimum number of disks required is four. Storage capacity equal to 50% of the total drive capacity. Can survive the failure of all the drives on any one of the RAID 0 arrays, but not from one drive from both of the RAID 1 arrays.
RAID 10. This is a stripe of mirrors. Good performance and throughput – often used for busy servers.
RAID 30. A combination of two RAID 3 arrays that have been striped – or, generically, striped, dedicated parity arrays. Only one drive from each of the RAID 3 arrays can fail before access to the data is lost. A common RAID level for Apple Xsan arrays, performance is extremely good.
RAID 50. Two RAID 5 arrays that have been striped. Performance is better than a single RAID 5. One drive from each of the RAID 5 arrays can fail. When this happens, that array will run in degraded mode (which will affect the performance of the entire array, even if the other RAID 5 is fully operational) until the faulty drive has been replaced and a RAID rebuild has taken place.
RAID 51. Two RAID 5 arrays that have been mirrored. It is incorrectly called RAID 53 by some manufacturers; both RAID 5 and RAID 3 are legitimate levels, so by definition you would need multiple RAID 5 arrays, each array as an independent member of the RAID 3 array. Not feasible or possible. All drives from one RAID 5, together with only one from the other can fail.
RAID 60. Two RAID 6 arrays that are striped in RAID 0. Uncommon.
RAID 61. Two RAID 6 arrays that have been mirrored in RAID 1. Uncommon.
Standard RAID levels
Please see here
Proprietary RAID levels
Please see here
