RAID 10 Setup

RAID 10

RAID 10, also known as RAID 1+0, is a nested RAID level and can be best described as striped mirroring. Similar to RAID 0+1, RAID 10 provides the benefits of both reliance and performance. Multiple RAID 1 arrays are grouped into a single RAID 0 array and the striping of blocks is mirrored via the member arrays. RAID 10 is very popular for high transaction applications such as databases as write speeds are very good with quite acceptable levels of data security and integrity. The total capacity of a RAID 10 array is sum(N/2) where N is the number of drives in the array and count(N) is even.

RAID 10 Data Recovery Process

A RAID 10 array can lose all but one drive in each of the member RAID 1 arrays without compromising data integrity. However, if all the drives in one member RAID 1 array are lost, the entire RAID 10 array will be compromised as would be the case for a single drive loss in a RAID 0 array. Thus, as long as one disk in each mirrored pair is still functional, data can be recovered. If two disks in the same mirrored pair fail, all data will be lost because there is no parity in the striped sets.

Data Recovery Labs storage engineers have extensive experience with RAID 10 data recovery. Data Recovery Labs has developed custom tools and techniques to successfully perform RAID 10 data recovery. Constant development of our software and hardware insures that we have the very latest techniques and technology to produce the best recoveries possible.

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Common hybrid RAID failure cases:

  • RAID array controller failure
  • Multiple or single drive failure
  • Improper rebuild
  • Lost server registry configuration
  • System partition failure
  • Accidental reconfiguration of RAID drives
  • Accidental replacement of media components

RAID Recovery Recommendations: