Re: ****** RMAN backup for multi TB databases ******

From: Tim Gorman <tim_at_sagelogix.com>
Date: Thu, 19 Aug 2004 22:05:31 -0600
Message-ID: <BD4AD4AB.1A908%tim@sagelogix.com>

I recently visited a shop where they use RMAN on a 35Tb DW. 22Tb are READ ONLY tablespaces, so their weekly level-0 is about 13Tb. Their daily level-1 and level-2 average about 2-4Tb each, couple hundred Gb of archivelogs per day. They run big-iron Solaris and Veritas Netbackup to Sun DLT tape drives (16 drives, I think).

They're happy with RMAN, although that weekly level-0 is exceeding the 24hr backup window they've imposed. I suggested that the level-0's be distributed across each day of the 7-day week, to even out their spikes; don't know if they implemented it or not.

Also suggested that they look into table compression, but that will be a longer term thing. At the moment, I think they opted to order 6-8 more tape drives...

RMAN isn't a problem; it's a big part of the solution...

on 8/19/04 4:56 PM, Sam Reddy at iamanoracledba_at_yahoo.com wrote:

> Hi All,
>
> Could you please share your experience if you have implemented RMAN backup on
> a 5TB (Tera Byte) system ? I am concerned about backup time with
> full/cumulative/ incremental backups when RMAN is used in conjunction with
> Legato networker. Would you please send me if you have any white papers ?
> Hardware setup at your shop and any other technical considerations ?
>
> I appreciate your help.
>
> Have a wonderful day!
>
> Regards,
>
> Sam.
>
>
>
>
>
>
>
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Received on Fri Aug 20 2004 - 02:07:50 CDT