One more thing that is worth mentioning...
If you truly want the monthly tapes to only ever be used for that
particular month, you may wish to consider creating a pool for each
month instead. Then in your Schedule you can specify the specific pool
for that month:
Schedule {
Name = MonthlyBackups
Run = Level=Full Pool=January jan 1 at 00:00
Run = Level=Full Pool=February feb 1 at 00:00
....
Run = Level=Full Pool=December dec 1 at 00:00
}
If in the future you need multiple tapes for a month, this approach
would allow you to have multiple tapes in each month's pool as well.
Bryn
On 14-10-15 09:58 AM, Bryn Hughes wrote:
> There are a couple of things you can do in combination to get the result
> you want...
>
> First off, in your pool set a 'volume use duration' - this will restrict
> how long a time span of data can exist on a tape. For instance in your
> case you could set the volume use duration to 32 days, this would tell
> Bacula not to append any data to a tape 32 days after the first data was
> written to it. The tape will get a status of 'USED' rather than
> 'APPEND' once that time period passes. Regardless of what happens with
> the expiry / purge jobs this will prevent the scenario you are
> describing from ever happening - Bacula would instead complain that it
> could not find a tape if one wasn't available, it would not append data
> to an 'old' tape until the jobs on it were purged.
>
> Secondly yes, set the volume retention lower. Bacula will not purge a
> tape unless it needs to so it won't automatically purge data when it
> hits the volume retention date - even if you did need data off of a tape
> that was 11 months and 28 days old but Bacula hadn't needed the tape for
> writing yet, the data would still be there so you won't be loosing anything.
>
> Bryn
>
> On 14-10-15 09:45 AM, Thorsten Reichelt wrote:
>> Hi!
>>
>> I have a problem with my tape pool configuration.
>> I want to use exactly 12 LTO tapes (one tape per month).
>> After 12 month the oldest tape shall be reused without appending new data.
>>
>> But bacula seems to ignore my recycle and purge configuration (see below).
>> After one year I reuse the old tape and bacula appends the new data to it.
>> Then, after the second year has passed, the data is still appended to
>> the tape!
>>
>> Now I have the problem that my september tape ran out of free space and
>> I was
>> asked to insert the august tape... a few MB later that tape was full
>> also and
>> bacula asked for the july tape.... :/ :/
>>
>> So I manually purged the september tape and restarted all related backup
>> jobs.
>> How can I configure bacula to purge the oldest tape instead of appending
>> to it
>> for more than two years?
>>
>> My pool configuration for the tape looks like this:
>>
>> # ======================
>> Pool {
>> Name = MonthlyTape
>> Use Volume Once = no
>> Pool Type = Backup
>> AutoPrune = yes
>> Recycle Current Volume = yes
>> Volume Retention = 12 month
>> Recycle = yes
>> }
>> # ======================
>>
>> Would it make sense to set the retention time to "11 month 1 days"?
>>
>> Thank you very much!!
>>
>> Thorsten
>>
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