On Fri, Feb 17, 2023 at 04:24:19PM +0100, Daniele B. wrote: > Feb 17, 2023 11:51:52 Crystal Kolipe <kolip...@exoticsilicon.com>: > > > Then you perform your weekly backup, overwriting an older backup which had > > a good copy of the file in question. But this time when the system reads > > the file in from the _bad_ disk, and corrupt data gets written to your > > backup. > > > > Verifying the backup against the on-disk copy of the data may or may not > > reveal the issue, depending on which on-disk copy is read during the > > verify operation. > > I just would ask what software do you use for file system comparison.
We write our own software.