>
> >>> ... BackupPC appears to think that it has now used 5TB of a 3TB
> >>> disc and the claimed usage is growing. ...
>
> ... and growing. It's now claiming 8.5TB used by the pool. Pretty
> soon the claimed pool usage will exceed the total storage used by all
> the hosts that are being backed up. Real partition usage is ~80%, of
> course it's is using nothing like the storage it claims to be using.
Regarding this point: have you tried reducing the parameter
PoolSizeNightlyUpdatePeriod? It defaults to 16, and from the documentation:
> "The total size of the files in the new V4 pool is updated every night
when BackupPC_nightly runs BackupPC_refCountUpdate. Instead of adding up
the size of every pool file, it just updates the pool size total when files
are added to or removed from the pool.
>To make sure these cumulative pool file sizes stay accurate, we recompute
the V4 pool size for a portion of the pool each night from scratch, ie: by
checking every file in that portion of the pool.
> $Conf{PoolSizeNightlyUpdatePeriod} sets how many nights it takes to
completely update the V4 pool size. It can be set to: 0: never do a full
refresh; simply maintain the cumulative sizes when files are added or
deleted (fastest option) 1: recompute all the V4 pool size every night
(slowest option) 2: recompute 1/2 the V4 pool size every night 4: recompute
1/4 the V4 pool size every night 8: recompute 1/8 the V4 pool size every
night 16: recompute 1/16 the V4 pool size every night (2nd fastest option;
ensures the pool files sizes stay accurate after a few day, in case the
relative upgrades miss a file)"
I once had a similar problem (pool not showing real size) and forcing it to
check the size in a single night (PoolSizeNightlyUpdatePeriod=1) for a
couple of days solved it.
Regards,
Guillermo
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