[Linux-cluster] Cluster server maintenance
garromo at us.ibm.com
Thu Jul 3 12:42:37 UTC 2008
I have a two node cluster, RHEL 5, Protocol version: 5.0.1. Can anyone
the best method, and or explain -u and -q fo the clusvcadm command to me?
Here is what I want to do:
1. Shutdown the services running; DBs, apps whatever...
2. I don't want the services starting on the other node, or anywhere.
3. We don't want any fencing to take place
4. We do our maintenance; Patch server, whatever...
5. Bring the services back up; DBs, apps whatever...
Now the only way I have found to do this so far is to disable the service.
# clusvcadm -d <service_name> (and maybe that is the only answer)
Man pages do not provide much information
-u Unlock the cluster's service managers. This allows services to
transition again. It will be necessary to re-enable all services in the
stopped state if this is run after clushutdown.
Also a -q or quiet operation, which I am not finding any information
# clusvcadm -h
Resource Group Control Commands:
clusvcadm -v Display version and exit
clusvcadm -d <group> Disable <group>
clusvcadm -e <group> Enable <group> on the local node
clusvcadm -e <group> -F Enable <group> according to
clusvcadm -e <group> -m <member> Enable <group> on <member>
clusvcadm -r <group> -m <member> Relocate <group> [to <member>]
clusvcadm -q Quiet operation
clusvcadm -R <group> Restart a group in place.
clusvcadm -s <group> Stop <group>
Resource Group Locking (for cluster Shutdown / Debugging):
clusvcadm -l Lock local resource group manager.
This prevents resource groups from
starting on the local node.
clusvcadm -S Show lock state
clusvcadm -u Unlock local resource group
This allows resource groups to start
on the local node.
IBM Global Technology Services
Email: garromo at us.ibm.com
Text message: gromo at skytel.com
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