Explain where RAID 0+1 and RAID 1+0 can be used with example
1 Answer


  • RAID 10 works by striping and mirroring your data across at least two disks. Mirroring, or RAID 1, means writing your data to two or more disks at the same time. Even if one disk fails completely, the mirror preserves the information. Striping, or RAID 0, means breaking your data up into chunks and writing the chunks to different disks in succession. It improves performance because the computer can get data off more than one disk simultaneously.

  • RAID 10, for example, is fast, it's crash proof and it eats disk space. If you need more protection for your storage, or faster storage performance, RAID 10 is a simple, relatively cheap fix.

  • Put RAID 1 and RAID 0 together and you get RAID 10. RAID 10 is secure because mirroring duplicates all your data. It's fast because the data is striped across two or more disks, meaning chunks of data can be read and written to different disks simultaneously.

RAID 0+1

  • RAID 01 is a RAID level used for both replicating and sharing data among disks.The minimum number of disks required to implement this level of RAID is 3 but it is more common to use a minimum of 4 disks. The difference between RAID 0+1 and RAID 1+0 is the location of each RAID system — RAID 0+1 is a mirror of stripes although some manufacturers (e.g. Digital/Compaq/HP) use RAID 0+1 to describe striped mirrors, consequently this usage is now deprecated so that RAID 0+1 and RAID1+0 are replaced by RAID10 whose definition correctly describes the correct and safe layout

  • Whenever you need a RAID 1 array in general but each drive isn’t fast enough to get the transfer speeds you want you can boost performance by using RAID 0+1 instead. The failure of a single drive doesn’t stop the operation of the array.

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