On Mon, Jun 4, 2012 at 8:53 AM, Uwe Schuerkamp
<uwe.schuerkamp AT nionex DOT net> wrote:
> Hi folks,
>
> this is my 2nd attempt to configure bacula 5.2.6 to run more than one
> copy job at a time, and for the life of me I cannot find the error in
> my config. Parallel backup jobs (both full and incr.) work like a
> charm, but for some reason bacula refuses to run more than one copy
> job from disk to tape... I'm getting desparate to solve this one
> because the long queue of copy jobs just gets, well, longer ;-)
>
> Jobs are copied from the disk-based "FileStorage_Full" storage to the
> "offline" pool (LTO5).
>
> Here's my current config:
>
> copy job definition:
>
> Job {
>  Name = "copy"
>  Type = Copy
>  Level = Full
>  Priority = 15  # make sure all other jobs are finished first
>  Pool = Online_full
>  Client = deniol186-fd
>  FileSet = "Full Set deniol186"
>  Messages = Standard
>  Maximum Concurrent Jobs = 8 # changing this number has no effect
>  Schedule = DailyCopy
>  Selection Type = PoolUncopiedJobs
> }
>
> Storage "lto4":
>
> Storage {
>  Name = lto4
>  Address = tapeserver
>  SDPort = 9103
>  Password = "XXXXXX"
>  Device = lto4
>  Media Type = LTO-4
>  Autochanger = yes
>  AllowCompression = No
>  Maximum Concurrent Jobs = 8
> }
>
> FileStorage_Full:
>
> Storage {
>  Name = FileStorage_full
>  Address = tapeserver
>  here
>  SDPort = 9103
>  Password = "xxxxxx"
>  Device = FileStorage_full
>  Media Type = File
>  Maximum Concurrent Jobs = 8
> }
>
> In the client definition, I have
>
> Client {
>  Name = tapeserver
>  Address = tapeserver
>  FDPort = 9102
>  Catalog = MyCatalog
>  Maximum Concurrent Jobs = 8
>  Password = "XXXXXX"
>  File Retention = 30 days            # 30 days
>  Job Retention = 6 months            # six months
>  AutoPrune = yes                     # Prune expired Jobs/Files
> }
>
> My director allows up to 20 concurrent jobs, same goes for the FD on
> the backup server:
>
> Director {                            # define myself
>  Name = tapeserver-dir
>  DIRport = 9101                # where we listen for UA connections
>  QueryFile = "/server/bacula/etc/query.sql"
>  WorkingDirectory = "/server/bacula/var/bacula/working"
>  PidDirectory = "/var/run"
>  Maximum Concurrent Jobs = 20
>  Password = "XXXXX"
>  Messages = Daemon
> }
>
> What am I missing? Is it impossible to run more than one copy job at
> once? I seem to be limited by the number of readers / writers on the
> disk volume it seems:
>
> Jobs waiting to reserve a drive:
>   3602 JobId=27199 device "FileStorage_full" (/mnt/msa/online_backup)
>   is busy (already reading/writing).
>   3602 JobId=27201 device "FileStorage_full" (/mnt/msa/online_backup)
>   is busy (already reading/writing).
>   3602 JobId=27205 device "FileStorage_full" (/mnt/msa/online_backup)
>   is busy (already reading/writing).
>   3602 JobId=27207 device "FileStorage_full" (/mnt/msa/online_backup)
>   is busy (already reading/writing).
>   3602 JobId=27209 device "FileStorage_full" (/mnt/msa/online_backup)
>   is busy (already reading/writing).
>   3602 JobId=27211 device "FileStorage_full" (/mnt/msa/online_backup)
>   is busy (already reading/writing).
>   3602 JobId=27213 device "FileStorage_full" (/mnt/msa/online_backup)
>   is busy (already reading/writing).
>
>
> Used Volume status:
> OFFLINE07_02 on device "lto4" (/dev/nst0)
>    Reader=0 writers=1 devres=0 volinuse=1
> full-0074 on device "FileStorage_full" (/mnt/raid/online_backup)
>    Reader=1 writers=0 devres=0 volinuse=1
> full-0074 read volume JobId=27199
> full-0074 read volume JobId=27201
> full-0074 read volume JobId=27205
> full-0074 read volume JobId=27207
> full-0074 read volume JobId=27209
> full-0074 read volume JobId=27211
> full-0074 read volume JobId=27213
> full-0074 read volume JobId=27221
>
> However it should be possible for more than one *reader* to access the
> disk based volumes? I'm really confused why this setup won't work when
> parallel backup jobs write to a single volume just fine.
>
> I've also tried increasing the max. concurrent jobs in the "Device"
> definitions, sadly to no avail.
>

Don't disk volumes have just about the same restrictions as a tape
volume? Meaning you can not load more than 1 disk volume into the same
device at a time. You also can not read or write to different parts of
the same volume at the same time.

John

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