I’m also running into this issue.
In my case, I’ve setup a disk-based auto-changer (vchanger)
with two pools: Full and Weekly. Each pool has multiple drives
with 8 volumes on each drive. The script that mounts the disk
also issues an “update slots” command in bconsole, and I can
verify that bacula sees the correct volumes as “InChanger”.
When I swap out disks (weekly), Bacula continues to look for
volumes that were append-able, but on the previous disk (and not
currently marked as “InChanger”) and refuses to write to the
append-able volumes on the new disk that are marked as
“InChanger”. It marks all the previous volumes it cannot access
as “Error”, and only then will it begin writing to the currently
loaded volumes.
This line from the “Recycling Algorithm” led me to believe
that it would use a volume that was InChanger first: "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).”
But it seems I’m missing something. I’ve included relevant
bits from my bacula-dir.conf file if anyone can see what I’m
doing wrong. I’m getting this on two systems, one running
Bacula 5.2.12 and one running 7.0.4.
My other option is to split these all into separate pools,
but that’s going to make scheduling much harder.
Thanks in advance!
-Joe Rhodes
# Definition of file Virtual Autochanger device
Storage {
Name = removeable-drives
Address = 10.11.1.2
SDPort = 9103
Password = “password"
Device = ExternalDrives
Media Type = File
Maximum Concurrent Jobs = 1
}
# Pools
Pool {
Name = FullSet
Pool Type = Backup
Recycle = yes
AutoPrune = yes
Volume Use Duration = 1 week
#We're on an 2 month rotation
VolumeRetention = 58 days
Maximum Volumes = 32 # 4 drives with 8 volumes on each
Storage = removeable-drives
}
Pool {
Name = Weekly
Pool Type = Backup
Recycle = yes
AutoPrune = yes
Volume Use Duration = 1 week
VolumeRetention = 3 weeks
Maximum Volumes = 40 # 5 drives with 8 volumes on each
Storage = removeable-drives
}
And my bacula-sd.conf:
# Define a Virtual autochanger
Autochanger {
Name = ExternalDrives
Device = ExternalDrives-Drive1
Changer Command = "/usr/local/bin/vchanger -u root %c %o %S
%a %d"
Changer Device = "/etc/bacula/vchanger1.conf"
}
Device {
Name = ExternalDrives-Drive1
DriveIndex = 0
Autochanger = yes
DeviceType = File
Media Type = File
Archive Device = /var/lib/bacula/removeable-drives/0/drive0
Random Access = Yes;
AutomaticMount = yes;
RemovableMedia = no;
AlwaysOpen = no;
Maximum Concurrent Jobs = 5;
Maximum Volume Size = 476250 M; # with 8 volumes per drive,
this should leave about
# 4,800 MB free for other
things, or about 0.125%
}
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