On Mon, Jan 13, 2020 at 10:11:00AM -0800, Song Liu wrote: > + dm-devel > > On Sun, Jan 12, 2020 at 5:43 AM Gandalf Corvotempesta > <gandalf.corvotempesta@xxxxxxxxx> wrote: > > > > I'm testing dm-integrity. > > Simple question: when corrupted data are found, repair is done > > immediately or on next scrub? > > > > This is what I have: > > > > [ 6727.395808] md: data-check of RAID array md0 > > [ 6727.528589] device-mapper: integrity: Checksum failed at sector 0xe228 > > [ 6727.938689] md: md0: data-check done. > > [ 6749.125075] md: data-check of RAID array md0 > > [ 6749.664269] md: md0: data-check done. > > > > if repair is done immediatly, would be possible to add a single log > > line saying that ? > > something like: > > [ 6727.528589] md: md0: Repaired data at sector 0xe228 > > I guess this belongs to dm-integrity instead of md? Eh, well, no. He is asking about "md" in case the underlying layer, dm-integrity in this case, returns an error. This could be the case also if the HDD returns a read error which the RAID will correct and, if I get it right, rewrite. But I guess "md" already returns where the correction happened, isn't like that? I recall seeing in the logs something about it, but it was some time ago... bye, -- piergiorgio
