There are 5 places where you have to setup multiplexing.

My guess is you should first check the multiplexing settings on the storage 
groups that you created for the drives you are using.

>From the NetBackup FAQ for this mailing list:

What's with all of these different "max jobs" settings?
The number of simultaneous active backup jobs that can run on a client is 
regulated by five different NetBackup configuration parameters:
1. "max jobs per client" value, set globally 2. "max jobs per class" value, set 
for each class 3. "max jobs" value, set for each client (*) 4. "max multiplex 
per drive" value, set for each storage unit 5. "max multiplex per drive" value, 
set for each backup schedule in a class
So when a backup job is being prepared for a particular client, the scheduler 
checks to make sure that the new job won't challenge any of the limits above 
and thus decides if the backup job can go active right away or if it has to 
wait in the queue.

(*) this configuration option is barely documented so it's not well known. If 
specified, it will override the global "max jobs per client" value. To specify 
a client-level "max jobs" parameter:
bpclient -client $CLIENTNAME -add -max_jobs $MAXJOBS


-----Original Message-----
From: veritas-bu-admin AT mailman.eng.auburn DOT edu [mailto:veritas-bu-admin 
AT mailman.eng.auburn DOT edu] On Behalf Of Jérôme Meyer
Sent: Monday, June 06, 2005 6:38 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Help needed : use not all drives for a spec. policies

Hi 

This weekend and the last weekend the same problem appears!
There's a NBU Policy with about 15 machines and with "Allow multiple
data streams" enabled.
On the Storage Unit (Robot) there're three drives and the "Max.
concurrent drive used for backup:" is with 3 drives configured.

>From this policies 7 Machines was successfully conmpleted but the other
8 Machines was aborted with status  196.

After check the logs in bptm I've see that these 7 Machines was running
on 2 drives! I means that it should use 
not only 2 drives but 3 drives? Is it right? 
I don't know what is the problem and how to find them? has anyone an
idea how to find the problem?

Thanks for your help

Regards,
jmm
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