what is RAID 10 – RAID 10 Definition?

RAID 10 is a nested RAID technique developed by combining RAID 1 and RAID . The mixture is identified as a stripe of mirrors. In this arrangement, information is striped a lot as it is in a RAID array. The distinction is that every member of the striped set has its information mirrored. This ensures that if any single drive in the RAID 10 array fails, the data isn’t lost.

RAID 10, for example, is quickly, it’s crashproof and it eats disk space. If you want a lot more protection for your storage, or more rapidly storage performance, RAID 10 is a easy, comparatively low-cost fix.

To implement RAID 10 you need to have at least two physical hard drives just employing two partitions on the identical tough drive is inadequate. You also need to have a disk controller that understands RAID.

RAID 10 works by striping and mirroring your information across at least two disks. Mirroring, or RAID 1, means writing your information to two or much more disks at the exact same time. Even if 1 disk fails totally, the mirror preserves the data. Striping, or RAID , indicates breaking your data up into chunks and writing the chunks to various disks in succession. It improves performance simply because the pc can get information off much more than 1 disk simultaneously. (For the purists out there: RAID technically isn’t a RAID level at all since it doesn’t supply any redundancy to protect data. Nonetheless it is frequently referred to as a RAID level anyway.)

RAID 10 is a good decision for basic information storage, including serving as a startup drive, and as storage for massive files, such as multimedia.

RAID 10 array size can be calculated by multiplying a single drive’s storage size by half the quantity of drives in the array:

S = d * (1/two n)

“D” is the storage size of the smallest single drive, and “n” is the quantity of drives in the array.


  • RAID 10 is implemented as a striped array whose segments are RAID 1 arrays
  • RAID 10 has the same fault tolerance as RAID level 1
  • RAID 10 has the same overhead for fault-tolerance as mirroring alone
  • High I/O rates are achieved by striping RAID 1 segments
  • Under specific situations, RAID 10 array can sustain several simultaneous drive failures
  • Superb solution for internet sites that would have otherwise gone with RAID 1 but require some additional overall performance enhance