Re: Oracle 24x7 shops and Patches-Upgrades.
- From: "Niall Litchfield" <niall.litchfield@xxxxxxxxx>
- To: "Alex Gorbachev" <gorbyx@xxxxxxxxx>
- Date: Thu, 21 Dec 2006 08:36:16 +0000
It wasn't Tom's presentation at UKOUG to which I was referring. It was a
reference that I can't now find to the actual delivery of some real 'rolling
upgradeable' patchsets. I'd hope it was obvious from all the hedging around
that I did that I'm extremely sceptical - and who knows what happens if a
rolling upgrade fails halfway through - but I am sure that I've heard this
promised again for 11g.
For what it's worth I'm extremely sceptical about the usefulness of the
application schema versioning that Tom outlined as well :) I just can't see
any of the apps I've seen for the last 5 years or so being able to actually
take advantage of what was described.
Cheers
Niall
On 12/21/06, Alex Gorbachev <gorbyx@xxxxxxxxx> wrote:
> You *might* just possibly be able to upgrade your own in-house written
> software without downtime. You *cannot* maintain Oracle software without
> downtime - 11g promises the actual shipping of 'rolling upgrades' just
about
> 1/2 a decade after Larry first mentioned them. Until then (and it would
be a
> brave person who relied on that particular feature in it's first
release)
> then you cannot achieve 24*7 without either
Well, what 11g is *promising* (or was it Tom Kite's *prediction*?) is
online evolution of APPLICATION schema. This doesn't mean that we will
be able to do the same online evolution for sys schema. In fact, I can
bet that it won't make patchset installation any more online than now.
--
Best regards,
Alex Gorbachev
The Pythian Group
Sr. Oracle DBA
http://www.pythian.com/blogs/author/alex/
http://blog.oracloid.com
--
Niall Litchfield
Oracle DBA
http://www.orawin.info
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