Choosing protection mode for Active dataguard

Hi Gurus,
I'm confused with Active dataguard configuration-What mode do i need to configure physical standby to make use of actice dataguard.I know i can even use maximum performance with standby redolog for real time query.But what is the minimum protection mode to run active dataguard.
How can i setup a delay of 1 hour for active dataguard in 11gr2?
Thanks

You said:
>
By default Dataguard is in Maximum performance mode..we can set delay of 1 hour by setting the
log_archive_dest_2="service=to_standby lgwr async affirm reopen=60"
or
log_archive_dest_2="service=to_standby lgwr async delay=60"
>
I am sorry, but your first log_archive_dest_2 value is not correct:
The combination of ASYNC & AFFIRM is not supported and not sensible; REOPEN=60 will not delay the Redo Apply
See here for a proper explanation of log_archive_dest_n:
http://download.oracle.com/docs/cd/E11882_01/server.112/e17110/initparams121.htm
Kind regards
Uwe Hesse
http://uhesse.wordpress.com

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