On Monday, 30 March 2009 23:31:13 -0300,
Daniel Bareiro wrote:
> During the last process of backup scheduled by Bacula, I received the
> following notification by email.
>
> 30-Mar 08:27 backup1-sd: Please mount Volume "EducarFull0004" on Storage
> Device "Drive-1" (/dev/nst0) for Job Cygnus.2009-03-28_00.00.19
>
> Reviewing the state of the volumes, I found the following situation:
>
> Pool: Full
> +---------+----------------+-----------+----------------+----------+--------------+---------+------+-----------+-----------+---------------------+
> | MediaId | VolumeName | VolStatus | VolBytes | VolFiles |
> VolRetention | Recycle | Slot | InChanger | MediaType | LastWritten |
> +---------+----------------+-----------+----------------+----------+--------------+---------+------+-----------+-----------+---------------------+
> | 1,036 | EducarFull0002 | Append | 31,702,518,884 | 44 |
> 7,776,000 | 1 | 2 | 0 | DLT-7000 | 2008-05-13 22:26:53 |
> | 1,038 | EducarFull0001 | Purged | 34,189,164,863 | 50 |
> 7,776,000 | 1 | 1 | 0 | DLT-7000 | 2008-04-07 00:48:17 |
> | 1,039 | EducarFull0003 | Purged | 38,584,790,717 | 69 |
> 7,776,000 | 1 | 3 | 0 | DLT-7000 | 2008-05-04 23:32:04 |
> | 1,042 | EducarFull0005 | Purged | 34,119,283,723 | 66 |
> 7,776,000 | 1 | 1 | 0 | DLT-7000 | 2008-08-04 00:01:13 |
> | 1,043 | EducarFull0006 | Purged | 35,871,291,720 | 44 |
> 7,776,000 | 1 | 2 | 0 | DLT-7000 | 2008-09-08 01:28:55 |
> | 1,046 | EducarFull0009 | Purged | 38,888,730,357 | 77 |
> 7,776,000 | 1 | 3 | 0 | DLT-7000 | 2008-09-07 22:56:25 |
> | 1,047 | EducarFull0004 | Append | 18,302,518,203 | 43 |
> 7,776,000 | 1 | 1 | 0 | DLT-7000 | 2008-11-18 00:23:00 |
> | 1,048 | EducarFull0007 | Purged | 38,663,188,669 | 69 |
> 7,776,000 | 1 | 2 | 0 | DLT-7000 | 2008-11-02 00:39:19 |
> | 1,049 | EducarFull0008 | Purged | 33,354,768,116 | 39 |
> 7,776,000 | 1 | 3 | 0 | DLT-7000 | 2008-11-02 03:03:03 |
> | 1,050 | EducarFull0010 | Full | 35,826,198,945 | 62 |
> 7,776,000 | 1 | 1 | 1 | DLT-7000 | 2009-03-28 01:26:49 |
> | 1,051 | EducarFull0011 | Full | 34,782,209,484 | 62 |
> 7,776,000 | 1 | 2 | 1 | DLT-7000 | 2009-03-01 01:12:40 |
> | 1,052 | EducarFull0012 | Full | 43,395,971,463 | 52 |
> 7,776,000 | 1 | 3 | 1 | DLT-7000 | 2009-03-01 03:44:33 |
> +---------+----------------+-----------+----------------+----------+--------------+---------+------+-----------+-----------+---------------------+
>
> Apparently Bacula is wanting to use a volume that is not in autochanger and
> whose state is Append when being all the volumes in autochanger in Full
> state.
I was reading in the Bacula's manual about the algorithm that Bacula
uses when it needs a new volume, and comparing it with the behavior that
mentioned above, there is something is not clear to me of the steps
that the algorithm follows:
* "If the request is for an Autochanger device, look only for Volumes in
the Autochanger (i.e. with InChanger set and that have the correct
Storage device)".
Then why it can be that a volume with InChanger=0 has been chosen?
* "Search the Pool for a Volume with VolStatus=Append (if there is more
than one, the Volume with the oldest date last written is chosen. If
two have the same date then the one with the lowest MediaId is
chosen)".
With that criterion I think that it must have chosen the
EducarFull0002 volume. Why it can be that EducarFull0004 has been
chosen?
Thanks in advance.
Regards,
Daniel
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