FreeLists / oracle-l / RE: ZERO Database Downtime???

["Michael Fontana" <MFontana@xxxxxxxxx>]

> as well as the various comments about the 'rolling upgrades' via sql
apply
> that you have received, I'd point out that in fact GRID sometimes
requires
> more downtime than its single instance bretheren. For example from the
> Jan2006 CPU notes (for windows but the principle holds)
> 
> 
> "Special Installation Instruction for Customers using RAC for patching
> CRS:
> 
> 
> 
> 
> When patching CRS, please stop all 10g RAC instances and the Nodeapps:
> 
> 
> 
> > srvctl stop database -d <DB_NAME>
> 
> > srvctl stop asm -n <nodename1>
> 
> > srvctl stop asm -n <nodename2>
> 
> > srvctl stop nodeapps -n <nodename1>
> 
> > srvctl stop nodeapps -n <nodename2>

Niall, this is an excellent example of the point I was trying to make.

In fact, the reason for my original post was that I had seen the
marketing presentation, and we had an Oracle customer engineer coming in
to do an additional presentation to management.  I sprung some of the
stuff we've been discussing here, and got him to back off and say:

In 99.5% of all cases, you can upgrade without downtime.

I think that's still very much BS, but I didn't want to totally undress
him.

At least I've put some doubt in my management's mind.  
--
http://www.freelists.org/webpage/oracle-l