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Re: Any downtime with OPS or Sun Cluster HA Oracle

From: Connor McDonald <connor_mcdonald_at_yahoo.com>
Date: Fri, 02 Nov 2001 22:33:08 +0000
Message-ID: <3BE31F24.7475@yahoo.com>


Christian Svensson wrote:
>
> Greetings all !
>
> If you want maximum availability (no downtime at all) and you want no
> impact for the users who are connected to the database, which solution
> should you run in a Sun Solaris environment:
>
> - Oracle Parallel Server (I think you have to install the cluster
> part)
> - Sun Cluster HA Oracle
>
> From what I have read, if you run "Sun Cluster HA Oracle", and a node
> fails you will have a downtime for approx 60-90 sec (until the backup
> node recovers from the failed node). Does the user have to reconnect
> by the way ?
>
> But if you run OPS and a node fails the other nodes recovers from the
> failed node and the users keep on as nothing have happened. Or am I
> way off ?
>
> Thanks for any comments on this.
>
> Regards
>
> /Christian Svensson

Pretty much... but its also worthy of note when an instance goes splat in OPS, then all the locks need to be redistributed over the existing nodes - which takes some time, and can give the appearance of the entire setup being temporarily "stuck"

hth

-- 
==============================
Connor McDonald

http://www.oracledba.co.uk

"Some days you're the pigeon, some days you're the statue..."
Received on Fri Nov 02 2001 - 16:33:08 CST

Original text of this message

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