RE: Standby Database performance
Date: Wed, 23 Nov 2011 18:28:35 -0500
Message-ID: <9CE162BC5ED2C643956B526A7EDE46FF02A0A560EDD3_at_EXM-OMF-04.Ceg.Corp.Net>
Did you play with the parallel_execution_message_size parameter? I've seen some percentage of performance improvement when increasing that value. Thanks,
Finn
From: kapil vaish [mailto:kapilvaish1_at_yahoo.com] Sent: Wednesday, November 23, 2011 6:26 PM To: Jorgensen, Finn; oracle-l_at_freelists.org Subject: Re: Standby Database performance
DR 10.2.0.5, HP-Itanium, Super-Dome, EMC SAN, No ASM
From: "Jorgensen, Finn" <Finn.Jorgensen_at_constellation.com<mailto:Finn.Jorgensen_at_constellation.com>> To: "kapilvaish1_at_yahoo.com<mailto:kapilvaish1_at_yahoo.com>" <kapilvaish1_at_yahoo.com<mailto:kapilvaish1_at_yahoo.com>>; "oracle-l_at_freelists.org<mailto:oracle-l_at_freelists.org>" <oracle-l_at_freelists.org<mailto:oracle-l_at_freelists.org>> Sent: Wednesday, November 23, 2011 3:22 PM Subject: RE: Standby Database performance
Important information left out :
What version of Orac le?
What OS?
What kind of hardware?
Storage?
ASM?
Thanks,
Finn
-----Original Message-----
From: oracle-l-bounce_at_freelists.org<mailto:oracle-l-bounce_at_freelists.org> [mailto:oracle-l-bounce_at_freelists.org<mailto:oracle-l-bounce_at_freelists.org>] On Behalf Of kapil vaish
Sent: Tuesday, November 22, 2011 2:24 PM
To: oracle-l_at_freelists.org<mailto:oracle-l_at_freelists.org>
Subject: Standby Database performance
Hi Guys ,
we have physical standby database for one of our biggest database. Scripts ship the archived log to standby server and then using parallel 32, manual recovery is performed (thru scripts) . Archived log size is 2 GB and daily production archive generation is aorund 2.5 TB. We are trying to increase performance on our standby database. We tried tuning various standby related parameters and IO, maximum apply rate we could achieve is 45 sec per archive log. Can you suggest any other tunings you may have seen in your environments ? any pointers are appreciated ..
thanks
kapil Vaish
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