Dear Randall,
In message <CALYD9g+HKxVnosqfHN2iEaL4PvvDgcTtOgZWRE-yBh1W4n6gDA AT mail.gmail
DOT com> you wrote:
>
> I am trying to configure a dual drive tape library. My challenge is that
> bacula seems to only use one drive. What determines in bacula when it is
> optimal to use two drives? I am using bacula Version: 5.2.13.
I'm running 5.2.13 under Fedora 20; this is working fine for me.
> Additionally I have set "Maximum Concurrent Jobs = 4" in all the relevant
> places, but all this seems to do is allow multiple concurrent jobs run,
> which I have tested and seems to work, but strangely, I was under the
> impression that one job could write to one tape exclusively. But in this
> case, it seems multiple jobs can write to the same tape concurrently or is
> this not correct? Lastly I have specified spool directory, however it is
> never used. Any ideas here would be appreciated or clarity.
Make sure to set "Maximum Concurrent Jobs" in the storage definition,
too!
> Autochanger {
> Name = Qualstar
> Device = Drive-1
> Device = Drive-2
> Changer Command = "/opt/bacula/etc/mtx-changer %c %o %S %a %d"
> Changer Device = /dev/changer-sg2
> }
Looks OK to me.
> Device {
> Name = Drive-1 #
> Drive Index = 0
> Media Type = LTO6
> Archive Device = /dev/nst1
> AutomaticMount = yes; # when device opened, read it
> AlwaysOpen = yes;
> RemovableMedia = yes;
> RandomAccess = no;
> AutoChanger = yes
> Maximum Spool Size = 100G
> Maximum Block Size = 1032192
> Maximum Network Buffer Size = 65536
> Spool Directory = /var/spool/bacula
...
> }
Try adding
Changer Device = /dev/changer-sg2
to both your Device definitions.
In your bacula-dir.conf, you should have something like this:
# Definition of LTO autoloader
Storage {
Name = LTOLIB
Address = ...
SDPort = 9103
Password = ...
Device = Qualstar
Media Type = LTO6
Autochanger = yes
Maximum Concurrent Jobs = 6
}
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd AT denx DOT de
Beware of the Turing Tar-pit in which everything is possible but
nothing of interest is easy.
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