Re:Tell HN: ZFS silent data corruption bugfix – my research ...
by hdjdkdbdbe on Thursday December 07, 2023 @03:02AM
(#38554008)
You are partly right. Zfs scrub is a repair tool when it has parity / mirrored copy of data to recreate it.
Re:Tell HN: ZFS silent data corruption bugfix – my research ...
by Borealid on Thursday December 07, 2023 @04:09AM
(#38554429)
A scrub can also repair data when using `ncopies` greater than one even outside any mirrors or parity.
Re:Tell HN: ZFS silent data corruption bugfix – my research ...
by danparsonson on Thursday December 07, 2023 @03:46AM
(#38554277)
It's safe to make the assumption that the tool isn't magic.
ZFS's scrub is both a check and a repair tool. It's already saved some of my data.