Le Mon, 10 Apr 2017 11:05:38 -0700 L A Walsh écrivait: > I'm sure it wouldn't be trivial, but creating a separate > file system, "XFS2" from the original XFS sources that responded > to data or metadata corruption by returning empty data where > it was impossible to return anything useful instead of flagging > the disk as "bad", would be a way to allow data recovery to > the extent that it made sense (assuming the original sources > couldn't do the same toggling off a config-flag). It would probably much easier to add an option to mount the filesystem without crc, similar to "norecovery", that doesn't replay the journal. It would be of course read-only, but in a similar case it would be much easier and practical for everyone. So far I believed that metadata CRCs were a promise of safer filesystems; now that I've setup several multi-hundred terabytes volumes with CRC enabled, I'm getting nervous... -- ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------