I have a Bacula test setup running in order to decide about volume rotation
before migrating to production.

The setup includes multi pools with volume rotation, one pool per client
per backup type (full, differential, incremental).

I observed that although I change the Volume Retention period to another
(shorter) value, that doesn't reflect neither to actual volume rotation
mechanism nor
to actual volumes number written to the disk (storage daemon). Maximum
Volumes directive doesn't seem to work either.

The Volume Retention period for a client with incremental backup type was
initially set to 20 minutes that resulted 5 Volumes given that the job was
set to run every 5 minutes.
After changing the Volume Retention period to 10 minutes, Bacula kept
rotating the same 5 Volumes as before ignoring the change (I restarted the
director daemon just after the change to be sure).
I also tried to set Maximum Volumes directive to 3 but this was also
ignored.

Is the above behaviour normal? I also want to ask what is the purpose
of Maximum Volumes directive, given that the volume rotation is managed
exclusively by Volume Retention period
(Volume Retention period decides when to start recycling the volumes).

Thank you in advance,
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