4 ms·
It only works in the sense that if it finds an error it could recover when it is a multi-drive RAID, but a scrub can verify that the data on disk is still whole
by X-Istence 12y ago
It only works in the sense that if it finds an error it could recover when it is a multi-drive RAID, but a scrub can verify that the data on disk is still whole and matches what it expects.
Not only that, but a scrub can have ZFS tell you exactly what files are now "damaged".