On Fri, 29 Jul 2011, Nikolay Kichukov wrote:
For example is it good for raid1 array?
Yes, it's good for all raid levels that have any kind of redundancy. You want to read the information on the drives regularily to make sure it can still be read, and if it can't, it can be recomputed from parity and written.
Otherwise not-often-read data might have an error on one drive, and then another drive fails and now when you try to rebuild you don't have this data anywhere all of a sudden (RAID1 and RAID5), and you had no idea about this.
Scrubbing is good, do it regularily (at least monthly). -- Mikael Abrahamsson email: swmike@xxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
