If your tape drives are maxed out and jobs are queued too long, think about 
putting storage in the middle.

Our infrastructure is fiber based not 10G, so we got two DD990 as an 
intermediary backup target and now all jobs write there (we have over 200 
drives defined) and once backup jobs complete they duplicate to physical tape. 
Bonus, many servers cannot drive to the tape drive at speed, but the 990 get 
>100MB/Sec throughput on duplication to tape WHILE also reading in data.

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Message: 1
Date: Wed, 18 Dec 2013 19:54:12 +0000
From: Simon Weaver <Simon.Weaver AT iscl DOT net>
Subject: [Veritas-bu] SAP backups / Online / Redo
To: "VERITAS-BU AT mailman.eng.auburn DOT edu"
        <VERITAS-BU AT mailman.eng.auburn DOT edu>
Message-ID: <EF0BBE0D-E406-490C-A05F-5BE16718E214 AT iscl DOT net>
Content-Type: text/plain; charset="us-ascii"

All
I've been trying to troubleshoot performance and backup issues at an 
environment where all LTO4 drives are maxed out with these type of jobs and 
causing many others to queue or run at an incorrect time. 

There are close to around 60 policies where we have online, off-line, and redo 
log backups.

In each policy there was only a single client listed. A lot of these policies 
are sand media servers therefore they backup themselves.

The problem is we have too many jobs running concurrently and due to the vast 
amount of data on the servers, there is insufficient resources available for 
NBU to resume the queued jobs.

I would be interested to know if anyone else has a large environment of 
SAP/Oracle backups and what they do backups, because presently these jobs I can 
shaming 98% of our resources and our windows phone service I currently 
struggling to get backed up.

This separate tape drive all these will be in place, but I want to enquire if 
there is anything that could be done to may be group the SAP online backups 
into one policy.

But I'm also interested to hear of any ideas or methods that you may be using 
now.

Thanks
Si 

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