Am Mittwoch, 26. August 2015 17:19:17 UTC+2 schrieb [email protected]:
> Zitat von David Pearce <[email protected]>:
> 
> > We use data spooling and this can increase the total time, but it  
> > definitely keeps the tape drive streaming (going at full speed)  
> > reducing wear-and-tear.
> >
> > However, I agree that a job that is spooling to disk should not  
> > reserve a tape drive and block it from other jobs. I guess that is  
> > the cost of using data spooling.
> 
> It is possible to spool and despool (write to tape) at the same time,  
> but not within the same job. We have a setup with around 10 concurrent  
> running jobs with data spooling and while one of the jobs do  
> despooling to tape the others go on spooling fine. But be awere that  
> you need a really fast spooling area to saturate a LTO-6 for example  
> while other jobs write to the same IO device with 10G speed.
> 
> Regards
> 
> Andreas

This may be correct. If you have two jobs that use same pool 
spooling/despooling can run parallel. If you using different pools for every 
client job you will see: 
Jobs waiting to reserve a drive: 

Bareos seems to check, before the job starts, if there is any volume for 
writing. To check the Volume must be loaded to the tapedrive. 
Is there a way to move this check after the spooling process? 

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