You may do the update in multiple ways. If you don't want to take full cluster down, you can stop cluster services on one node and perform package update on it and rejoin it. Like this way do the update on one by one.
Instead if you can take maintenance window, you can stop cluster on all nodes and perform update. Do a reboot of nodes at a time and allow it to join fresh.
You will need to update cman,openais,rgmanager,lvm2-cluster(if you are using clvm) gfs-utils, gfs2-utils, kmod-gfs (only if you are using gfs). If the system is registered with rhn you give something like "yum install cman openais rgmanager ......." it will install it in proper order. I think you can do yum update using cluster group also so that it will update all of packages in cluster group.
The kbase article https://access.redhat.com/kb/docs/DOC-43210 may be helpful to you.
I would recommend to do this update in a test cluster first. If you don;t have test cluster, perform this in off business hours or maintenance window
Regards
Aneesh
On Tue, Jan 11, 2011 at 2:44 PM, Emilio Arjona <emilio@xxxxxx> wrote:
Hi experts,we are planning to update our cluster packages but we don't know what's the best procedure to do it:Must we shut down the whole cluster, update all the nodes individually while the cluster is off, and then join them all again?What are the packages to update? Order?And another question:Where can I download gfs2-hangalyzer?Regards,--
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Emilio Arjona Heredia
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