DATA RECOVERY RAID 10

Data recovery on a RAID 10 or RAID 1+0 system benefits from the inherent resilience of the RAID 1 redundancy system. In the event of disk failure, data availability is guaranteed by replication within the cluster. The RAID 10 system, meanwhile, can continue to operate, providing permanent access to working disks. Data reconstruction and synchronization then only involve the clusters affected by the failure.

The reliability of RAID 10 is further enhanced by the fact that it can withstand the loss of several disks, as long as they do not belong to the same array. Indeed, all the disks in a RAID 1 array would have to be faulty to cause the system to fail. The probability of such a scenario seems low. However, as the disks in the system are mostly from the same series and support the same frequency of use, their life expectancy is virtually identical.

Data availability in a RAID 10 system can therefore be compromised by a simultaneous failure in a RAID 1 cluster, or in the event of a disaster (electrical damage, flood, fire, etc.). Data recovery then requires knowledge of the system’s advanced configuration (granularity or size of data blocks, order of clusters and disks, etc.), or even physical cleaning and troubleshooting of the disks.

In most scenarios, it is advisable to entrust RAID 10 data recovery to a professional laboratory with the appropriate expertise and facilities (clean room, etc.).