I've noticed something which has changed from the bacula 9->13 upgrade.
Looking at logs from December, before the upgrade, I find that *all* the
backups were using storage "FileStorage0" and media type "File0". And
yet, the load was still shared 50/50 between devices FileDev0 and FileDev1.
root@store:/home/brian# grep File0 /var/log/bacula/bacula.log.1 | wc -l
1004
root@store:/home/brian# grep File1 /var/log/bacula/bacula.log.1 | wc -l
0
root@store:/home/brian# grep FileStorage0 /var/log/bacula/bacula.log.1 |
wc -l
1004
root@store:/home/brian# grep FileStorage1 /var/log/bacula/bacula.log.1 |
wc -l
0
root@store:/home/brian# grep FileDev0 /var/log/bacula/bacula.log.1 | wc -l
1539
root@store:/home/brian# grep FileDev1 /var/log/bacula/bacula.log.1 | wc -l
1473
I can't see how that worked. It's as if there were a single "Storage"
with two Devices, but that's not what the config shows. The storages are
defined in a separate file included from bacula-dir.conf, which hasn't
changed since 2021.
root@store:/etc/bacula# ls -l bacula-storage.conf
-rw-r----- 1 bacula bacula 686 Feb 8 2021 bacula-storage.conf
root@store:/etc/bacula# cat bacula-storage.conf
# Definition of file storage device
Storage {
Name = FileStorage0
Address = store.nsrc.org # N.B. Use a fully qualified
name here
SDPort = 9103
Password = "XXXXX"
Device = FileDev0
Media Type = File0
Maximum Concurrent Jobs = 4
}
Storage {
Name = FileStorage1
Address = store.nsrc.org # N.B. Use a fully qualified
name here
SDPort = 9103
Password = "XXXXX"
Device = FileDev1
Media Type = File1
Maximum Concurrent Jobs = 4
}
# If required, we can add more Storage devices. These are virtual, but
just allow
# Bacula to process backups in parallel.
The JobDefs and pools have:
Storage = FileStorage0,FileStorage1
and bacula-sd.conf has:
root@store:/etc/bacula# ls -l bacula-sd.conf
-rw-r----- 1 bacula bacula 2253 Feb 1 2021 bacula-sd.conf
...
Device {
Name = FileDev0
Media Type = File0
Archive Device = /backup/bacula
LabelMedia = yes; # lets Bacula label unlabeled media
Random Access = Yes;
AutomaticMount = yes; # when device opened, read it
RemovableMedia = no;
AlwaysOpen = no;
}
Device {
Name = FileDev1
Media Type = File1
Archive Device = /backup/bacula
LabelMedia = yes; # lets Bacula label unlabeled media
Random Access = Yes;
AutomaticMount = yes; # when device opened, read it
RemovableMedia = no;
AlwaysOpen = no;
}
...
I can't see any way that FileDev1 could ever be used with media type
File0. Could this behaviour have changed from bacula 9->13 ?
Anyway, I'm going to try and workaround this now, by two changes:
1. using a single mediatype "File0" (only 27 existing volumes in the
catalog have mediatype "File1", I will update them)
2. using StorageGroupPolicy = LeastUsed
Given that I have set a concurrent limit of 2 backup jobs in the
director, and there are two storage resources, I'm hoping that the
LeastUsed storage will always be available, and then successfully create
and use the volume first time. Let's see what happens tonight.
Regards,
Brian.
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