[Veritas-bu] Backup using more than one tape drive.
2001-02-13 15:49:29
Subject: |
[Veritas-bu] Backup using more than one tape drive. |
From: |
Bob Bakh bbakh AT veritas DOT com |
Date: |
Tue, 13 Feb 2001 12:49:29 -0800 |
Also make sure that in the NetBackup Configuration for the Master that
Maximum Jobs per client is set to higher than 1, I like 99 because it has a
nice ring to it.
Then try setting Multiplexing to 1 and re-run the rman job.
If you want to use Multiple streams from a standard job, set the file list
to ALL_LOCAL_DRIVES and play with the bpstart and end notify scripts to
manage the number of streams you will create.
Bob
-----Original Message-----
From: Jonathan Geibel [mailto:Jonathan.Geibel AT disney DOT com]
Sent: Tuesday, February 13, 2001 12:02 PM
To: Edward W. Carr
Cc: Veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Backup using more than one tape drive.
Ted,
You are mixing up multiplexing with multistreaming..
multiplexing is taking several different clients and having them back up
to a single tape drive..
multistreaming is what you want where a single client can backup to
multiple tape drives..
On Tue, 13 Feb 2001, Edward W. Carr wrote:
> Hi All, my question is in two parts ...
>
> 1) I am trying to backup a 500+ gig ORACLE database to my StorageTek L700
> tape library using more than one tape drive! The library has 6 fibre 9840
> tape drives. I have run a backup once but it only utilized one tape drive
> and it took 26 hours! I am wondering if there is a way to make it use all
6
> drives in the library for the backup. The machine that will be backing up
> the database is a media server (not the master) and is connected directly
to
> the fibre network. I am using NetBackup to run the backup (Standard
Class)
> not RMAN. Both the Job and NetBackup have a maximum multiplex of 8.
>
> 2) Our Oracle Admin was trying to use RMAN to push a "HOT" Backup of the
> same database and told rman to utilize 5 of the six tape drives, but it
was
> only using 1 for some reason! Should I have the Media Multiplexing set to
1
> on the ORACLE Class backup? Any help with this would be appreciated!
>
> Thanks
>
> Ted Carr
>
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