I have noticed that my config of bacula only seems to ever use one
drive. For example, when labeling a large pool of volumes, it mounts
and labels each volume sequentially using only a single drive. As each
volume label is independent of the other volumes, it seems like this
would be much faster if the volumes were split between the drives. (Or
at least wear would be evened out between the drives).
Is this the typical behavior, or can my config be improved in some way
to better use multiple drives? Our tape library is configured thusly in
bacula-sd.conf
Storage {
Name = Scalar-i40
SDPort = 9103 # Director's port
WorkingDirectory = "/scratch/bacula/spool"
Pid Directory = "/var/run"
Maximum Concurrent Jobs = 2
SDAddress = 127.0.0.1
}
Autochanger {
Name = AutoChanger-Scalar-i40
Device = Drive0
Device = Drive1
Changer Command = "/usr/libexec/bacula/mtx-changer %c %o %S %a %d"
Changer Device = /dev/changer0
}
Device {
Name = Drive0
Drive Index = 0
Media Type = LTO-6
Archive Device = /dev/st1
AutomaticMount = yes
AlwaysOpen = yes
RemovableMedia = yes
RandomAccess = no
AutoChanger = yes
LabelMedia = yes
Alert Command = "sh -c 'smartctl -H -l error %c'"
Maximum Changer Wait = 600
Maximum Rewind Wait = 600
Maximum Open Wait = 600
Spool Directory = /scratch/bacula/spool
Maximum Spool Size = 10000000000000 #10TB in bytes
Maximum Concurrent Jobs = 2
}
Device {
Name = Drive1
Drive Index = 1
Media Type = LTO-6
Archive Device = /dev/st0
AutomaticMount = yes
AlwaysOpen = yes
RemovableMedia = yes
RandomAccess = no
AutoChanger = yes
LabelMedia = yes
Alert Command = "sh -c 'smartctl -H -l error %c'"
Maximum Changer Wait = 600
Maximum Rewind Wait = 600
Maximum Open Wait = 600
Spool Directory = /scratch/bacula/spool
Maximum Spool Size = 10000000000000 #10TB in bytes
Maximum Concurrent Jobs = 2
}
Messages {
Name = Standard
director = bacula-dir = all
}
Director {
Name = bacula-dir
Password = Removed to protect the guilty
}
Director {
Name = prod-backup-mon
Password = Removed to protect the guilty
Monitor = yes
}
Does anyone have ideas for how I could use this hardware more efficiently?
--
Thanks,
John H. Nyhuis
Desk: (206)-685-8334
jnyh...@uw.edu
Box 359461, 15th floor, 106
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