[OpenAFS] Inconsistency in displayed volumes size

[Frederic Gilbert]

Hi,

among other things, we use to monitor the difference between the busy
space on a partition as reported by vos partinfo, and the busy space
computed by adding all the volumes sizes reported by a vos listvol on
this partition. Of course this is done just after R/W volumes backups
have been done.

On our Transarc AFS servers, these two informations are consistent, but
on our first openAFS server (1.2.2a on a RedHat7.1 PC), we have noted
that the sum of the volumes sizes is generally 6 to 10% below the busy
space reported by vos partinfo and df. We could not find any good reason
for this, only that the difference seems to be linked to volumes (it
moves with them from one partition to another). Does anyone have an
explanation about this?
 
Thanks,
Frederic Gilbert.