Re: RAC or Large SMP...?
Date: Sun, 12 Oct 2008 22:41:29 -0700
>> And one argument I didn't make but you reminded me of ... try to >> perform a rolling upgrade on an SMP box. >> >> It may not be perfect with RAC but I can guarantee you it is >> impossible with a single server.
> However my understaning is that the rolling upgrade capabilities with
> RAC are very limited.
> For example could you do a rolling upgrade of a major patch (e.g.
> upgrade from 10.2.0.2 to 10.2.0.3)..?
> Could you do a rolling upgrade of a cumulative security patch
> You are right that it is impossible to do a rolling upgrade on an SMP
> box which means that you will have downtime, but that downtime will be
> much shorter than the equivalent RAC downtime simply because there are
> more homes to patch. Especially when you consider that you may also
> have to patch the CRS home, the ASM home and the multiple database
Oracle, with every major release, is getting closer and closer to the holy grail of rolling upgrades. I can't speak specifically, without researching it, which patches can be done on a rolling basis and which can not but for every one that can ... that is one outage you would have with SMP.
-- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damorgan_at_x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Group www.psoug.orgReceived on Mon Oct 13 2008 - 00:41:29 CDT