Davina Treiber <Davina.Treiber AT PeeVRo.co DOT uk> wrote on 05/29/2008 
11:01:15 
AM:

> MIchael Leone wrote:
> > EMC NetWorker discussion <NETWORKER AT LISTSERV.TEMPLE DOT EDU> wrote on 
> > 05/29/2008 10:21:15 AM:
> > 
> >> The "max parallelism" set to 4 seems fishy to me.  If you want 5 jobs 
to
> >> run, doesn't this need to be increased to at least 5?
> > 
> > Don't think so .. my other 4 drive library is set to 4, and it 
definitely 
> > runs 5 or more jobs at the same time. 
> > 
> > I believe the parallelism refers to the total number of drives that 
can be 
> > in use at one time, not the total number of jobs that be run acorss 
the 
> > sum of all the drives.
> 
> No it's not that at all. Max parallelism on the library controls how 
> many tape operations may run simultaneously, such as tape 
> mounts/unmounts, label operations, inventory operations etc. It has no 
> bearing on how many save sessions may be run.

Well, that's close to what I said. :-) So any idea how can I specify to 
run more clone jobs that the number of physical drives in the library? I 
know that regular backup jobs (i.e., not backup clones) will execute more 
jobs simulataneously than there are physical drives. Someone posted that 
they thought that backup clone jobs were single-threaded, and thus if I 
have 4 drives, only 4 backup clone jobs would execute at one time.

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