Re: ZERO Database Downtime???
- From: "LiShan Cheng" <exriscer@xxxxxxxxx>
- To: MFontana@xxxxxxxxx
- Date: Mon, 3 Apr 2006 16:51:43 +0200
Well if you use CRS the 99.5% becomes cero no? :-)
You could have asked him how do you upgrade the data dictinary without
stopping.!
Rgds
LSC
On 4/3/06, Michael Fontana <MFontana@xxxxxxxxx> wrote:
>
> > 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.
> --
> //www.freelists.org/webpage/oracle-l
>
>
>
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