RAID 6, also known as double-parity RAID, uses two paritystripes on each disk. It allows for two disk failures within the RAID set before any data is lost.
Hot data storage market technology trends for 2016
Download the December edition of Storage Magazine Online to check out our Hot Techs for 2016! For the past 13 years, we've honored the best and brightest technologies for the upcoming year. As always, we are proud to present a batch of technologies we believe will make a big impact on data storage market technology.
By submitting your email address, you agree to receive emails regarding relevant topic offers from TechTarget and its partners. You can withdraw your consent at any time. Contact TechTarget at 275 Grove Street, Newton, MA.
This configuration offers very high fault- and drive-failure tolerance. It is used for environments that need long data retention periods, such as archiving. One disadvantage in using RAID 6 is that each set of parities must be calculated separately, which slows write performance. Implementing RAID 6 is also more expensive because of the two extra disks required for parity.
This was first published in December 2014
Continue Reading About RAID 6 (redundant array of independent disks)