RE: Any-one know how to eliminate PLANNED downtime with Oracle RAC?

From: Bort, Guillermo <>
Date: Mon, 24 Nov 2008 10:37:41 -0600
Message-ID: <>

Well, I'm not sure this is entirely possible. Using rolling upgrades
(which I understand were improved in 11g) could help, but from the base,
there are *some* patches that would require downtime. However, this could be an interesting case. And if all else fails, you can always try contacting Oracle Consulting... or Tom Kyte trough ask tom...  

Guillermo Alan Bort

DBA / DBA Main Team  

EDS, an HP company

ITO Arias 1851

Ciudad Autonoma de Buenos Aires (C1429DXC)


Tel: +54 11 4704-3132

E-mail: <>  

We deliver on our commitments

so you can deliver on yours.  

[] On Behalf Of Fahrenfort, Keith
(HP Shared Solutions Architect for Oracle)
Sent: Monday, November 24, 2008 2:26 PM
Subject: Any-one know how to eliminate PLANNED downtime with Oracle RAC?  

Hi, I'm working with a customer running a critical web site on a 10gR2 RAC backend DB - they support hundreds of thousands of simultaneous connections at the "quietest" time.  

They have expressed a desire for NO downtime during ANY changes to Oracle, particularly the application of Oracle patches and Oracle upgrades (both minor and major), etc.  

Any thoughts? Who's "been there done that"?  

Thanks! Regards!

Please let me know if you prefer to not receive email from me.    

Keith Fahrenfort

Solutions Architect - Hewlett Packard

Solution Design Services for Oracle

Shared Solutions Architecture

HP Americas Solution Architecture

Call 1.800.424.0993 option2 or email to reach the Solution Design Team <blocked::>

For HP's privacy policy and contact information, please see <blocked::>

Received on Mon Nov 24 2008 - 10:37:41 CST

Original text of this message