Hello,
On 12/16/2005 7:04 PM, Gabriele Bulfon wrote:
I think you didn't get the problem.
I have 4 jobs each day. I have a retention of 6 days. I have auto prune.
I have the recycle flag on.
Then a week passes, and the tape is not recycled. Maybe because Bacula
wants to retain as much
as possible....and yes, there's still space on the tape (but how does it
knows?)...
I knows because the tape is not full. Bacula considers a tape full when
it gets the corresponding return code when writing. Simething like the
error code for "no space" or "end of media".
So, even if it appends, I'll get another 4 jobs appended on the
tape....ok....I'm safe this second week.
And another week passes, and the tape is not recycled again (why?!). Ok
it wants to ratain again as
much as possible....and this time the space is limited.
So...I get one job done....and the second....and then I it asks for
another tape! But it's 2am! Nobody's gonna change the tape!...and jobs
will be canceled later on (If I don't auto cancel them, no other future
job will be run without my manual intervention of canceling).
....this is soooooooo bad!
Why it didn't want to recyle?!
Because, as I tried to point out in my earlier mail, you didn't
configure it to work the way you want it to work.
Once again: You have to set up the volumes to be used for a given time
period, so Bacula knows when to mark a volume as used.
Use the "Volume Use Duration" setting. Please read the manual section
explaining this setting. It contains a lot of useful information for
your needs.
But then...this happens on monday, but not on tuesday (this week), but
it happens on tuesday too next week....it's a mess!! Where's the problem?!
And please, can you tell me what is the "User defined maximum capacity"?
It defines the maximum amount of data to put on a volume.
I never defined this.
It worked for weeks on an LTO library, and now it stops at a certain
amount of Gb saying that
the maximum defined capacity is reached.....where do I define this? I
never did.
What Information about the volume is in the catalog? The llist command
can show you.
Thanks.
Gabriele.
<http://www.sonicle.com>
Gabriele Bulfon - Sonicle S.r.l.
Tel +39 028246016 Int. 30 - Fax +39 028243880
Via Felice Cavallotti 16 - 20089, Rozzano - Milano - ITALY
http://www.sonicle.com
----------------------------------------------------------------------------------
Da: Arno Lehmann <[EMAIL PROTECTED]>
A: bacula-users@lists.sourceforge.net
Data: 16 dicembre 2005 1.25.43 CET
Oggetto: Re: [Bacula-users] Puring/Pruning doesn't seem to be happening.
Hello,
On 12/16/2005 12:56 AM, Gabriele Bulfon wrote:
>
> ....so....how does one force it to do it?!
Apart from the configuration directives like "prune oldest volume" (or
something) my advice is usually "you don't".
When I find I have to force Bacula to anything, it's usually my
fault or
(more often these days, running a beta version :-) Bacula shows a bug.
> Think: if the tape goes full after 3 jobs, and I have 4 each
night, my
> last job will not be done.
Or, in other words, you need enough space available.
> And this is not acceptable.
No, this is,in my opinion, the best way to handle backups: Avoid
overwriting valid data whenever possible.
> If I tell bacula that the retention period is 12 days, I assume
that 12
> days later the tape will be recycled.
Well, your assumption is not coherent with Bacula, then. Bacula
treats a
retention like "keep the data for at least this time. Only after this
time has passed consider recycling that volume." Thus, you should
assume
that your data will not be overwriten until 12 days have passed after
the last job on a given volume is finished.
> After all...how does bacula knows the true capacity of a tape,
until it
> goes EOT?
Why would Bacula need that information?
> Wouldn't it be easier to have some kind of flag to tell Bacula :
"Ok,
> this tape is in the correct pool, look if it's recyclable, and if
it is,
> don't even try to append. Just scratch and reuse".
Hmm. Isn't that how Bacula works? If a volume is in the right pool, and
it is flagged as recyclable, and automatic pruning for the jobs and
volumes is on, AND the retention period has passed, the volume will be
considered when Bacula looks for a recyclable volume.
If you want to limit the time Bacula uses a volume, you can do so by
setting the proper volume use time or number of jobs.
And, while jobs can be pruned automatically after a job, the step of
recycling a volume only happens when Bacula actually needs another
volume.
> I see many users asking for this. And I still haven't found a way
to do it.
> Always appending.
No, appending as long as it's allowed. Either until the volumes is
full,
it's filled with as much data as you configured, with as many jobs as
you set, or used for the time you told it to use the volume.
> But sometimes (some kind of randomly) it
> recycles....wierd....isn't it?
Erm. No.
I understand Bacula works in a way to ensure that backups are available
as long as possible. When determining how to set it up, it's my duty to
set the retention times and the recycling strategy. Knowing the amount
of data I want to store, I have to make sure I've got enough space.
If I set up a pool to have backups available for a certain time, and
I've not got enough volumes, Bacula tells me so. Either I re-think my
backup strategy and modify the setup, or I buy more tapes.
I never had a situation where Bacula didn't recycle correctly, and even
my 1-year-retention pools are cycling as I set them up. Of course, for
short-term storage I need the space for a worst-case scenario.
Arno
>
> <http://www.sonicle.com>
> Gabriele Bulfon - Sonicle S.r.l.
> Tel +39 028246016 Int. 30 - Fax +39 028243880
> Via Felice Cavallotti 16 - 20089, Rozzano - Milano - ITALY
> http://www.sonicle.com
>
>
>
>
>
----------------------------------------------------------------------------------
>
> Da: Arno Lehmann <[EMAIL PROTECTED]>
> A: bacula-users@lists.sourceforge.net
> Data: 15 dicembre 2005 21.12.01 CET
> Oggetto: Re: [Bacula-users] Puring/Pruning doesn't seem to be
happening.
>
> Hello,
>
> On 12/15/2005 5:01 PM, Beren Gamble wrote:
> > I'm going crosseyed, it's probably something simple, but i've
> been looking at it for too long.
> >
> > This shows the media i'm going to use for tonight's backup. The
> problem is, it's still set to append, shouldn't it have a VolStatus
> or Purged?
> >
> >
>
+---------+------------+-----------+-----------------+----------+--------------+---------+------+-----------+-----------+---------------------+
>
> > | MediaId | VolumeName | VolStatus | VolBytes | VolFiles |
> VolRetention | Recycle | Slot | InChanger | MediaType |
LastWritten |
> >
>
+---------+------------+-----------+-----------------+----------+--------------+---------+------+-----------+-----------+---------------------+
>
> > | 6 | THURSDAY2 | Append | 99,017,877,864 | 102 | 1,036,800 | 1 |
> 0 | 1 | SDLT | 2005-12-02 00:22:38 |
> >
>
> Considering your retention period of 12 days, I guess that's what
> you're
> aiming at.
>
> And no, it should not yet be purged. Bacula only prunes jobs and
> volumes
> when it actually needs a new volume. In this case, I suppose
that, if
> this evening there's no more space available or usable, Bacula will
> prune this volume and then recycle it.
> Arno
>
> PS:
> >
>
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>
> Arno
>
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