On 3/31/2011 10:20 AM, Randy Katz wrote:
> On 3/31/2011 10:02 AM, Alan Brown wrote:
>> Randy Katz wrote:
>>
>>> Alan, thank you for that answer and please excuse my questions:
>>>
>>> 1. Do you have a different expire time (60d) for your Full then your
>>> Incrementals or does it matter?
>> I set the database file/job expire time to 100 years and simply roll
>> the media, but we do full/diff/incremental in the same pool.
>>
>> I did look at putting fulls in one pool and the rest in another but
>> decided this is more trouble than it's worth.
>>
>>> 2. Which parameter are you referring to?
>>> a. Full Expiration - Is it File Retention or Job Retention or both?
>> Both
>>
>>> b. Expire Media - What parameter are you referring to?
>> Volume expiry.
>>
>> When a volume is purged its file/job data is automatically erased from
>> the database anyway, with the effect being that we can restore any
>> version of any file from the backup tapes, up to the oldest Full
>> backup (and occasionally beyond).
>>
>> If your database size is too big to handle then job/file retention
>> could be shortened but I wouldn't do that if it can possibly be
>> avoided (memory is cheap, the added time to bscan or be forced to do a
>> full restore is not)
> Well since I asked the question I have scripted a Pools.conf creation
> script for Full, Diff, and Incr for each Client to backup,
> removed the Pools from bacula-dir.conf and added an Include
> (@/etc/bacula/conf.d/pools.conf). It didn't take very long and
> if anything needs to change is trivial to reconfigure now. As for
> retaining a Full backup for so long, why is it so necessary if
> I have a Full being created every month with a 3 Volume Retention and a
> Time of 60d then there should never be a time when
> there is no Full before Diff/Incr's, right? If I wanted a 180 day cycle
> then would want to extend that to the incrementals and
> diffs as well, right?
>
List please disregard my last questions on this, I don't know what I was
thinking. The first full cannot
expire until all pertinent (between the date of the First Full and the
next Full) Incrementals and/or Differentials
have expired otherwise it renders them virtually useless.
Regards,
Randy
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