Sorry to keep coming to this list with problems. The good news is that
I'm installing Bacula at a few different locations as quickly as I can
get it running, and using the newest features in Bacula. And everyone
likes it.
So today's problem is handling DVD backups. I've got a backup system
which runs three jobs every night, sending the backup data to a
harddrive pool. I'm trying to make it so that Bacula (v2.0.1) migrates
old jobs to a DVD pool once the harddrives start filling up. I *think*
that the migration job is working perfectly, and that it's not part of
the problem. What is going wrong is two things (I think):
1) Say we're migrating two jobs, with sized of 6 gigs and 1 gig, to
DVDs. Bacula labels dvd-0001, writes the entire disk, the asks for
dvd-0002. I insert a new blank disk, run the mount command, and then it
writes the rest of the 6 gig job to dvd-0002. That Migrate job finishes
successfully. Since the DVD isn't full, it's status is left as
'append'. Bacula now starts migrating the 1 gig job to DVD. At this
point, it prompts me, "Please mount Volume "dvd-0002" on Storage Device
"DVDWriter". The disk is in there, but I try running unmount and mount
again. It prompts me for dvd-0002 over and over again now, and is stuck.
2) I'm under the impression that DVDs are read (for restoring data) by a
normal filesystem mount? If so, this isn't working on my system,
because when I mount (mount -t iso9660 -o ro /dev/scd0 /mnt/dvd), it
mounts an empty, 350k filesystem. dvd+rw-mediainfo confirms that the
entire disk has in fact been written to.
I started working with DVD-R disks, and then switched to DVD+RW, since
that's what the manual says is most tested. I got the same results with
both though.
I've also made sure that the system isn't auto-mounting the drive.
I've confirmed that writing files to DVDs, manually, via growisofs,
works, and the files are readable later.
Can anyone with a working DVD setup point out what I'm doing wrong? Or
just post your config files so I can replicate them and see if it works
or me?
Thanks again,
Andrew Fabian
----
from bacula-sd.conf:
Device {
Name = DVDWriter
Media Type = DVD
Device Type = DVD
Archive Device = /dev/scd0
LabelMedia = yes;
Random Access = yes;
AutomaticMount = yes;
RemovableMedia = yes;
AlwaysOpen = no;
RequiresMount = yes;
MountPoint = /mnt/dvd;
MountCommand = "/bin/mount -t iso9660 -o ro %a %m";
UnmountCommand = "/bin/umount %m";
SpoolDirectory = /bkup1/bacula/spool
WritePartCommand = "/bkup1/bacula/bin/dvd-handler %a write %e %v"
FreeSpaceCommand = "/bkup1/bacula/bin/dvd-handler %a free"
}
----
from bacula-dir.conf:
Job {
Name = "MigrateToDVD"
Type = Migrate
Level = Full
JobDefs = "DefaultJob"
Pool = Default
Selection Type = PoolOccupancy
}
Storage {
Name = File
# Do not use "localhost" here
Address = 1.2.3.4 # N.B. Use a fully qualified name here
SDPort = 9103
Password = "xxxxx"
Device = FileStorage
Media Type = File
}
Storage {
Name = DVD
Address = 1.2.3.4
SDPort = 9103
Password = "xxxxx"
Device = DVDWriter
Media Type = DVD
}
Pool {
Name = Default
Pool Type = Backup
Recycle = no
AutoPrune = no
Volume Retention = 36500 days
LabelFormat = "hd-"
Maximum Volume Jobs = 1
Next Pool = DVD
Storage = File
Migration High Bytes = 22000000000
Migration Low Bytes = 18000000000
}
Pool {
Name = DVD
Pool Type = Backup
Recycle = no
AutoPrune = no
Volume Retention = 36500 days
LabelFormat = "dvd-"
Storage = DVD
}
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