Temporarily prevent clusterware node failover for quick maintenance.

Is it possible to temporarily ignore dependencies in a resource group to shoot down a part of a group of resources without failover to another node from resource group?

For example, we have a group of resources and dependencies with a database, asm diskgroup and recipient, largely built by customizing the instructions using Oracle Clusterware to protect a single Instance Oracle Database 11 g whitepaper. Basically, we want to be able to stop the database for a few minutes, perform maintenance and then restart it all by leaving the listener, asm or other dependencies of the resource running in order to minimize downtime.

I can think of several ways ugly to do subject to script changes, but y at - it a nice way of saying the initial resource not to restart and not clusterware temporarily fail over to the second node without shutting down the entire resource group? Currently, if we stop it manually the clusterware database will see resource or even dead and finally switch to another node. We do not want to lose clusterware Self-monitoring, but we must be able to easily temporarily disable.

Thanks for your suggestions.

Assuming this is a single instance (NO CARS) then if you use crs_stop to stop your resource database to single instance then clusterware will stop the database for you, but leave the other resources available on the same node. If you have a resource rg1.head, according to the guidelines of my book, you'll need to crs_stop f of the database - this will also stop the head as wel resource. When you have finished, you can start the head resource and this will make appear the database.

During the stage collapsed if you need you can manually start the datababase using sqlplus - this will put in unmanaged mode and allow you to do what you want. When do not forget to use sqlplus to stop the database before starting the clusterware resource

Philip...

Tags: Database

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