RE: Why extra standby redo log group?
- From: Martin Brown <martinfbrown@xxxxxxxxxxx>
- To: <john.hallas@xxxxxxxxxxxxxxxxxx>, <fuadar@xxxxxxxxx>, <yong321@xxxxxxxxx>
- Date: Sun, 5 Apr 2009 09:46:17 -0400
Totally agree. Our configuration has 8 primary nodes and (of course) only 1
standby node. For those that don't run DataGuard 10g, you can only have 1
active standby node. Normal log switches happen about 3 per hour. During peak
times, our log switchs pick up speed and this configuration keeps up quite
nicely.
> From: John.Hallas@xxxxxxxxxxxxxxxxxx
> To: fuadar@xxxxxxxxx; yong321@xxxxxxxxx
> CC: oracle-l@xxxxxxxxxxxxx
> Date: Sun, 5 Apr 2009 14:33:16 +0100
> Subject: RE: Why extra standby redo log group?
>
> I would agree with what Fuad says, it is to ensure that the standby can keep
> up with the primary. It is only a recommendation though and not mandatory
>
> John
>
> -----Original Message-----
> From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On
> Behalf Of Fuad Arshad
> Sent: 04 April 2009 03:44
> To: yong321@xxxxxxxxx
> Cc: oracle-l@xxxxxxxxxxxxx
> Subject: Re: Why extra standby redo log group?
>
>
> Well in my case I've seem standby redo logs used to cover for backlogs I.e
> Log switching is faster than the standby instance can perform
>
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