Roy Sigurd Karlsbakk writes: > Basically, the reason to use raid10 over raid6 is to increase > performance. This is particularly important regarding rebuild > times. If you have a huge raid-6 array with large drives, it'll take a > long time to rebuild it after a disk fails. With raid10, this is far > lower, since you don't need to rewrite and compute so > much. Personally, I'd choose raid6 over raid10 in most setups unless I How do you figure that? Sure, raid6 is going to use more CPU time but that isn't going to be a bottleneck unless you are using some blazing fast NVME drives. Certainly with HDD the rebuild time is simply how long it takes to write all of the data to the new disk, so it's going to be the same either way.