Upgrade Process

[Martin Wells]

We are currently running HP-UX 10.20 and service guard 10.11. We have been told that we can pay for additional support on our 10.20 servers while we are upgrading them (which will be done in September) but only if we upgrade the service guard to 10.12.

How easy is this to do. We need the support of 10.20 as we can't upgrade until september due to a lack of resources.

[Ravi_8 · Accepted solution]

Hi,

HP is no more supporting 10.20, as i know it's ended this june

[melvyn burnard]

very easy.
cmhaltnode -n 1stnode
swinstall SG10.12 depot, and dont forget hte patch eiher
cmrunnode -n 1stnode
check it joins the cluser
move package(s) over,
cmhaltnode 2ndnode
and repeat for each and every node in the cluster.
Read the Managing MC/ServiceGuard manual for further details, Appendix E in particular
http://docs.hp.com/hpux/pdf/B3936-90024.pdf

[Tim D Fulford]

The upgrade to SG will probably require an outage. I'm aware that you can do rolling upgrades of the SG binary (the binary that defines your cluster), but I personally prefer to do it cleanly

1 - Stop SG
# cmhaltpkg
# cmhaltcl

2 - save /etc/cmcluster, especially the .ascii etc
# cp -pr /etc/cmcluster /etc/cmcluster.old

3 - upgrade
# swinstall .......

4 - re-apply binary
# cd /etc/cmcluster
# cmcheckconf ....
# cmapplyconf ....

5 - Start cluster up
# cmruncl
# cmviewcl

Tim

[melvyn burnard]

regarding Tim's response, what he is suggesting completely negates the High Availability you get from using ServiecGuard.
You also do NOT reapply the binary, part of the swinstall of the newer version does an automatic conversion to the newer binary for you.
There is nothing stopping you following these steps, but they are not necessary.

[Tim D Fulford]

Melvin.

"live & learn...." I have only used MC/SG prior to & including xx.09 & you DEFINITELY could not do rolling version upgrades. This is good news to me as we have lots of 09 systems.

Tim