Hi Jon

what are you trying to achieve ? If you want to have one job per volume, then you should look into the option "MaximumVolumeJobs" (Dir->Pool). See here: https://docs.bareos.org/Configuration/Director.html#config-Dir_Pool_MaximumVolumeJobs

Kind Regards
Sebastian Sura

Am 13.12.24 um 15:30 schrieb Jon Schewe:
Wouldn't setting "Volume Use Duration" to 1 minute ensure that the volumes stop unbounded appending?

On Thursday, December 12, 2024 at 9:07:23 PM UTC-6 Brock Palen wrote:

    I find it to be manageability.
    The on disk volumes sitll act like tape, so while things prune,
    they are effectively append only immutable. So you can only
    recycle them once everything on the volume ages out.

    Setting size much like setting max age etc, is a way of capping
    unbouned appending and never recovering space.

    I guess you could run into maximum filesize but I have really ran
    into that on enterprise NAS like Isilon having 8TB max file size.
    Most filesystems you would use on a direct attached system have no
    effective limit.


    Brock Palen
    [email protected]
    www.mlds-networks.com <http://www.mlds-networks.com>
    Websites, Linux, Hosting, Joomla, Consulting



    > On Dec 12, 2024, at 2:27 PM, Jon Schewe <[email protected]>
    wrote:
    >
    > When using file based backups what are the reasons for setting
    "Maximum Volume Bytes"?
    > If the filesystem supports files larger than any single backup
    would it make sense to leave this unset and to set "Volume Use
    Duration" to something really small and then each volume has a
    single job in it?
    >
    >
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