What is RAID 10?
The primary benefit of RAID 10 is that it combines the benefits
of RAID 0 performance and RAID 1 fault-tolerance. It provides good data
reliability in the case of a single drive failure. When one hard drive
fails, all data is immediately available from the other half of the
mirror without any impact to the data integrity. In the case of a disk
failure, the computer system will remain fully operational to ensure
maximum productivity. Data fault-tolerance can be restored by replacing
the failed drive.
The performance of a RAID 10 array is greater
than that of a single drive since data can be read from multiple disks
simultaneously. Compared to a two-disk RAID 0, RAID 10 read performance
is higher as data can be read from either half of the mirror, but write
performance is slightly lower due to ensuring data is written out
completely to the array.
Minimum Disks: 4Advantage: Combines the read performance of RAID 0 with the fault-tolerance of RAID 1.
Fault-tolerance: Excellent - disk mirroring means that all data on one disk is duplicated on another disk.
Application: High-performance applications requiring data protection.