RE: ZERO Database Downtime???

There is a kind of "rolling upgrade" promoted in the documentation which is
really "rolling one-off patches."  Applying *qualtifying* patches using
opatch to RAC nodes one node at a time is one valid argument to having
separate ORACLE_HOMEs.  There are also several other arguments in support of
such a practice, such as decreased impact from someone messing up
ORACLE_HOME and added redundancy if they are placed on different arrays.

Jeremiah Wilton
ORA-600 Consulting
Recoveries - Consulting - Seminars
http://www.ora-600.net

-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] 

For a while they were saying that a Shared Oracle Home
for RAC was a bad idea because "you can't do a rolling upgrade"
with a single shared Oracle Home. Then people started calling them
on the fact that you can't do a rolling upgrade AT ALL without
Data Guard involvement...

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