FAQ
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_at_morrisonsplc.co.uk
To: fuadar_at_yahoo.com; yong321_at_yahoo.com
CC: oracle-l@freelists.org
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_at_freelists.org On Behalf Of Fuad Arshad
Sent: 04 April 2009 03:44
To: yong321_at_yahoo.com
Cc: oracle-l@freelists.org
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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