What happens if you only have 2 tapes in the loader when you run the job?
Does it run or error out?

What kind of data are you backing up?  If the files are already compressed
or just not very compressible (databases, zip files...), you might not get
very good compression on the tape and fill them up earlier than you expect.
If you do a media list report, does it show a FULL status on the tape?  If
they're filling up, make sure that you only use Hardware OR Software
compression - if you use both, you will probably use up more tape too.

What kind of tape drive and throughput are you getting on the job?

Andrew

-----Original Message-----
From: Sen [mailto:discussion.groups AT gmx DOT net] 
Sent: Monday, October 06, 2003 9:39 AM
To: Pearce, Andrew W.; 'Steve Dvorak'; netbackup-l; nbu-lserv;
veritas-bu AT mailman.eng.auburn DOT edu

i have 2 drives in the loader.
1 job with 2 streams, mutiplexing set to 1
any help?

----- Original Message ----- 
From: "Pearce, Andrew W." <apearce AT kforce DOT com>
To: "'Steve Dvorak'" <sdvorak AT veritas DOT com>; "'Sen'"
<discussion.groups AT gmx DOT net>; "netbackup-l" <netbackup-l AT yahoogroups 
DOT com>;
"nbu-lserv" <nbu-lserv AT dsihost-srv01 DOT com>;
<veritas-bu AT mailman.eng.auburn DOT edu>
Sent: Monday, October 06, 2003 7:42 PM
Subject: RE: [Veritas-bu] tape usage


> How many tape drives to you have in you loader?
>
> If you have 4 drives and 4 or more jobs scheduled to fire at once (without
> multiplexing) you will pull 4 tapes, one for each available drive.  If
this
> is the case, you could try (in order of personal Preference):
> 1. Grouping the jobs into 1 or 2 policies and change the "Limit Jobs Per
> Policy" to 1 or 2 accordingly.
> 2. Staggering your schedule
> 3. Multiplexing if it is justified
> 4. Only allow 2 drives at a time for backup
>
> Andrew
> -----Original Message-----
> From: Steve Dvorak [mailto:sdvorak AT veritas DOT com]
> Sent: Monday, October 06, 2003 12:07 AM
> To: 'Sen'; netbackup-l; nbu-lserv; veritas-bu AT mailman.eng.auburn DOT edu
>
> Check out the "Allow multiple retensions" capability.
>
> Steve Dvorak
>
> -----Original Message-----
> From: Sen [mailto:discussion.groups AT gmx DOT net]
> Sent: Saturday, October 04, 2003 7:46 PM
> To: netbackup-l; nbu-lserv; veritas-bu AT mailman.eng.auburn DOT edu
> Subject: [Veritas-bu] tape usage
>
>
> hi,
> I have a pool if 10 tapes which is configured for full backup. This backup
> only requires 2 tapes, however, if there are 10 tapes in the library it
will
> use about 4 tapes.
>
> How can i force NB3.4 to continue appending data on those tapes which
still
> have free space before moving on the other new tapes ? thanks
>
>
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