IIRC, the pool is effectively RAID0 over vdevs: if any single vdev dies - whole pool dies. Do i remember this correctly?
So if over the years I got, say, five disks of varying quality - I shouldn't add them to a pool as five individual vdevs :)
So if over the years I got, say, five disks of varying quality - I shouldn't add them to a pool as five individual vdevs :)
Yes, that's why you don't have single-disk vdevs.