RE: Standbys and Temp Space
- From: Hemant K Chitale <hkchital@xxxxxxxxxxxxxx>
- To: <Joel.Patterson@xxxxxxxxxxx>, <hkchital@xxxxxxxxxxxxxx>, <klange@xxxxxxxxxx>, <gundogar@xxxxxxxxx>
- Date: Wed, 28 Mar 2007 22:36:49 +0800
just to back track ... my description of adding a TEMPFILE "locally"
at the Standby was in the context of the original question whether
the TEMPFILE from the Primary site needs to be copied to the
Standby Site (the way Datafiles are copied to create the clone).
At 09:53 PM Wednesday, Joel.Patterson@xxxxxxxxxxx wrote:
Yes, but you can open the physical standby read only... let them do some
reporting -- hence need temp tablespace. Then restart managed recovery.
Now tempfiles are there permanently... And in an emergency that step is
already done making failover more automatic.
Joel Patterson
Database Administrator
joel.patterson@xxxxxxxxxxx
x72546
904 727-2546
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Hemant K Chitale
Sent: Wednesday, March 28, 2007 9:27 AM
To: klange@xxxxxxxxxx; A. Coskan Gundogar
Cc: oracle-l@xxxxxxxxxxxxx
Subject: RE: Standbys and Temp Space
Consider :
1. Monday : You do a first clone to the Standby without the
TEMPFILE
2. Tuesday through Thursday: Your Standby in MOUNT state is
always "rolling forward"
through ArchiveLogs shipped from the Primary
3. Friday morning : Your Primary goes DOWN. No access to the
Primary Storage at all.
4. Friday afternoon: You OPEN the Standby.
Hmm. .. we don't have the TEMPFILE .
Let's add the TEMPFILE.
5. Friday evening : Users are happy, transactions continue..
When would you have been able to copy the TEMPFILE ?
A Standby HAS to assume that the TEMPFILE is not available.
Hemant
Hemant K Chitale
http://web.singnet.com.sg/~hkchital
and
http://hemantscribbles.blogspot.com
and
http://hemantoracledba.blogspot.com
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