version compatibility

[Nguyen Anh Tien]

I have 3 nodes Cluster (runing OS: HP-UX 11i MC-SG Version:11.14)
Now I intend to add a node more (installed MC-SG Version 11.16) I am worrying about compatibility between 2 version?
pls give me the advice or evidence about this problem.
thanks!
tienna

[Sridhar Bhaskarla · Accepted solution]

Hi Tienna,

Nodes with different serviceguard versions can be in the same cluster.

However, it is meant for only rolling upgrades. If you are intending to make it a long term setup, I suggest you upgrade all your nodes to 11.16.

-Sri

[Nguyen Anh Tien]

I also want to update to 11.16 but I think License is not match.
Can you show me evidence that confirm MC-SG 11.14 is able to work witch MC-SG 11.16?

[Sridhar Bhaskarla]

Hi,

Look at the following release notes

http://docs.hp.com/hpux/onlinedocs/B3935-90078/B3935-90078.html

section "Using Serviceguard A.11.16 to reach earlier versions" section in the compatibility section.

Again, that is intended only for 'rolling' upgrades.

-Sri

[Sridhar Bhaskarla]

And I should also add that you may end up runnng serviceguard commands on the node with 11.16 as the serviceguard versions are backward compatible.

To make your life bit simple, install 11.14 first on the new node, add it to the cluster and then upgrade it to 11.16. See example rolling upgrades in this document.

http://docs.hp.com/hpux/onlinedocs/B3936-90079/B3936-90079.html

-Sri

[Nguyen Anh Tien]

Thank for your answer, have found a solution to this question