On 2/17/2023 5:30 AM, Stuart Henderson wrote:
They're often slower (especially in failure conditions) and more complex. Reconstructing RAID5/6 after a drive failure is pretty intensive on the other disks.
Not only that but your other (or spare) drives may have a bad sector that won't be detected until it's read. One of the drives in the array goes bad, you rebuild it, and the rebuild fails because now two (or more) drives are bad.
At least if you do backups you're periodically verifying all the data can be read.
