can i add a package with a new vg online?

[ljp_1]

I have a cluser running.
now I insert new disk and create a new vg
and I want to add a new package to the cluster using the new vg.

can i do this withou halt the cluster?

thanks a lot

[Bernhard Mueller]

Yes you can.

just cmcheckconf and cmapplyconf and you are done.

Regards,
Bernhard

[Geoff Wild]

The answer is Yes.

BTW - there is some good documentation here:

http://docs.hp.com/hpux/ha/index.html

In particular, the "Managing MC/ServiceGuard".

Rgds...Geoff

[Michael Steele_2 · Accepted solution]

Once the cluster is up and running with additional packages already started then the only additional step is the last, cmmodpkg. Else, its all the same.

For example:

cluster up and running, cmviewcl -v
Additional LVM work for new vg's.
cmmakepkg -p package.conf (* vi and modify *)
cmmakepkg -s package.cntl (* vi and modify *)
cmcheckconf -P package.conf
cmapplyconf -P package.conf

cmmodpkg -e -n node1 -n node2 package

[Stuart Abramson_2]

Correct me if I'm wrong, but:
o I thought the cluster had to be down to run the "cmapplyconf".
o ALL VGs in the cluster must be listed in the "cluster ascii file".
o The cmapplyconf must have one entry for each package:

# The cluster must be stopped on all nodes prior to running
# this script
cmapplyconf -v -C /etc/cmcluster/asia.ascii -P /etc/cmcluster/cipkg/ci.cfg -P /etc/cmcluster/dbpkg/db.cfg

[melvyn burnard]

Stuart
That has changed dramatically since SG version 10.10, and above.
There are a lot of things that can be done with the cluster running.
check the latest Managing MC/ServiceGuard manual for what can and what cannot be changed while the cluster is running.

[Stuart Abramson_2]

Melvyn:

Thanks.

Stuart