Re: ****** RMAN backup for multi TB databases ******
- From: Tim Gorman <tim@xxxxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 19 Aug 2004 22:05:31 -0600
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@xxxxxxxxx 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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