>
> One ensures against file system bit rot, the other ensures backup file
> consistency.
>
I would say $Conf{PoolNightlyDigestCheckPercent} = 1 is also a check for
bit rot, as the only thing it does is to read the file, re-calculate the
md5 checksum, and compares it with its name (which is the md5 calculated at
the time of writing). It actually says it in the help, "This is check if
there has been any server file system corruption."
What controls the consistency of the backup are
$Conf{PoolSizeNightlyUpdatePeriod} and specially $Conf{RefCntFsck}.
Regards,
Guillermo
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