[Bacula-users] Delayed job delay other jobs assigned to the same volume

Hi Bacula users!

I often experience issues with the fact that Bacula assigned 
multiple jobs to one tape volume, that when one of the jobs is 
delayed or take too much time, all other jobs will also be 
delayed. There seems to be limited we can do with this issue 
with tape backup (let me know if I am not correct), but since we 
are looking toward moving into having disk as storage-backend, I 
am wondering whether there is anything I can do with disk-based 
backup to reduce this issue. These methods seems promising:

1. Creating multiple "Device"s point to the same storage backend
    and have a virtual "Autochanger" to manage them. It seems
    that to alleviate the issue above, I need to set "Maximum
    Concurrent Jobs" for each "Device" to 1, right? However, I am
    wondering whether Bacula will spread the jobs to multiple
    devices; previously with tape backup, most of the time Bacula
    only use the primary / default device (tape drive).

2. Creating multiple "Pool"s and distribute the jobs among them.
    This seems to require a lot of manual works, though. More
    extreme (but actually less manual work), is having one "Pool"
    per "Job" definition, therefore each volume will be dedicated
    to 1 "Job" definition, and won't wait for another "Job".

3. Limit only one job instance per volume, i.e. "Maximum Volume
    Jobs = 1", so Bacula cannot assign more than 1 job to a
    volume. The issue is the number of volume files proliferating
    in the storage backend.

4. Any other suggestions?

Thank you!

-- 
    ____  ____  ____  ____ (stephan paul) Arif Sahari Wibowo
   /___  /___/ /___/ /___      http://www.arifsaha.com/
  ____/ /     /   / ____/

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