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Graham Keeling @ 08/03/2011 03:34 AM:
> On Tue, Aug 02, 2011 at 05:11:11PM -0700, scar wrote:
> i'm not using tapes, i just have my volumes stored in a directory. it's
> my intention to take a full backup every month on the first, with
> incrementals and differentials during the month like in the default
> configuration. with a volume use duration of 23 hours, a new volume
> will get created every day. so, it seemed reasonable to me to have the
> volume retention set to 40 days. with AutoPrune and Recycle both set to
> yes, this seemed like a maximum of 40 volumes would be created and used,
> thus limiting the amount of disk space the backups would use.
>
> but then i started reading the other settings for the Pool resource, and
> confusion ensued.
>
> in there, it indicates the minimum volume retention should be twice the
> interval of my full backups, i.e. two months. anyone care to explain
> that? it seems to me with a 40 day limit, at least 2 full backups will
> always exist.
>
>> Just taking your first question - there is discussion here:
>> http://adsm.org//lists/html/Bacula-users/2011-01/msg00305.html
thanks. BTW i meant i will always have at least 1 full backup (and for
a time i will have 2 full backups). as long as i have at least 1 full
backup i'm happy, so i think 40 days is fine.
> secondly, it goes on to say that i should be using `Action On Purge =
> Truncate` along with a RunScript in my CatalogBackup Job to run `purge
> volume action=all allpools storage=File`. when i went to read up on the
> `purge volume` command, it seems to me that the command should really be
> `purge volume action=*truncate* allpools storage=File`.
>
> finally, i then went on to read about the "Recycle Oldest Volume"
> directive which sounds reasonable, but i'm confused as to what is really
> happening without this directive set to yes.
>
> is all of this really necessary? thanks
>
> here's my Pool resource currently,
>
> Pool {
> Name = File
> Pool Type = Backup
> Recycle = yes
> AutoPrune = yes
> Volume Retention = 40 days
> Maximum Volume Bytes = 100G
> Maximum Volumes = 100
> LabelFormat = "Vol"
> Volume Use Duration = 23h
> }
>
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