Not possible simple as that. They are still working to make all patches HOT/Online. You can use Logical Standby to reduce downtime but zero downtime that is not feasible with current releases Thanks -- LSC On Mon, Nov 24, 2008 at 5:25 PM, Fahrenfort, Keith (HP Shared Solutions Architect for Oracle) <keith.fahrenfort@xxxxxx> wrote: > Hi, I'm working with a customer running a critical web site on a 10gR2RAC > 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 pss@xxxxxx to reach the Solution > Design Team > keith.fahrenfort@xxxxxx > *http://www.hp.com/go/oracle* > *For HP's privacy policy and contact information, please see * > http://welcome.hp.com/country/us/en/privacy.html > ------------------------------ > >