Beyond basic RAID

This article can also be found in the Premium Editorial Download: Storage magazine: Tame the e-mail beast: Valuable e-mail management strategies

Most people know their RAID 0, 1 and 5, but beyond that, things can get pretty hairy, pretty fast. Below are examples...

of some of the more exotic RAID levels you may come across.

RAID 6 Like RAID 5 (block level striping and distributed parity), but with dual parity for each data block Improved fault tolerance over RAID 5 - can handle the failure of any two drives in the array Slower writes than RAID 5
RAID 30 Striping (RAID 0) across RAID 3 (byte-level striping with dedicated parity disk) sub-arrays RAID 0-like speeds, with increased fault tolerance Complex, expensive to implement
RAID 51 Mirroring combined with block striping and distributed parity Maximum fault tolerance and availability through mirroring and distributed parity Low storage efficiency
This was last published in October 2002

Dig Deeper on Storage management and analytics

Start the conversation

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.