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тАО04-21-2005 07:27 PM
тАО04-21-2005 07:27 PM
ServiceGuard AUTO_RUN behaviour
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тАО04-21-2005 08:14 PM
тАО04-21-2005 08:14 PM
Re: ServiceGuard AUTO_RUN behaviour
Properly configured your package should stop running on node A when conditions on node A force a failover to node B.
I'd check the log files in /etc/cmcluster and see if hey help.
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тАО04-21-2005 08:25 PM
тАО04-21-2005 08:25 PM
Re: ServiceGuard AUTO_RUN behaviour
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тАО04-23-2005 02:14 AM
тАО04-23-2005 02:14 AM
Re: ServiceGuard AUTO_RUN behaviour
1. if the node a package is currently running on fails and
2. there is a node up that the package is configured to run on then
3. allow it to failover and run on a node.
Another way to look at it is - "really try to keep this package running if the node it is running on fails".
In your case if NODE A comes back the package will stay. But if NODE B then fails the package is allowed to move to NODE A.
AUTO_RUN changes to disabled after a manual switchover because there is an assumption that you are doing maintanence and, even though a node may be up, you don't want it to move automatically.
The FAILBACK POLICY determines what happens to the package after the first node comes back.
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тАО04-26-2005 12:07 AM
тАО04-26-2005 12:07 AM
Re: ServiceGuard AUTO_RUN behaviour
When AUTO_RUN is ENABLED, you give permission to SG to run the package on any node available to run it, beginning with the primary node, and working down the list of adoptive nodes, as the package fails over.
Should Node_switching be disabled for a particular node, Serviceguard will skip that node as a failover node.
As stated before, when a package is manually halted, Serviceguard views this as a maintenance situation and disables AUTO_RUN.
Use cmviewcl -v -p
cmmodpkg is used to set both AUTO_RUN and Node_switching.
The first syntax for cmmodpkg is:
cmmodpkg {-e|-d} [-n node_name]... [-v] package_name...
When used WITHOUT the -n option, AUTO_RUN will be affected, whereas when used WITH the -n option, Node_Switching will be affected.
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тАО04-26-2005 10:47 PM
тАО04-26-2005 10:47 PM
Re: ServiceGuard AUTO_RUN behaviour
Global switching just defines whether the package is allowed to switch across nodes WITHIN the cluster.
Local switching defines whether a node is ALLOWED to run the package or not.
May I suggest you take a read of the following manual:
http://docs.hp.com/en/B9903-90043/B9903-90043.pdf
Take a look at pages 46/47, and 211/219