MC Service Guard

[sivakumar_11]

Hi friends

How to start & stop a Cluster Server.

thanks in advance
siva

[Rajeev Shukla]

to stop the whole cluster use
cmhaltcl -v
to start the cluster daemon run
cmruncl -n node1 -n node2 etc..

[Sudeesh]

This document will help you to understand the process better.

http://docs.hp.com/en/B3936-90073/index.html

goto > Chapter 7 Cluster and Package Maintenance > Managing the Cluster and Nodes


Sudeesh

[Thayanidhi]

Working with cluster:

cmhaltcl -v -f (-f required if packages already running) to stop

cmruncl -v (to start)

Node:

cmhaltnode & cmrunnode
(check the man pages, if node is running package and enbaled for switiching it will switch)

package:

cmrunpkg & cmhaltpkg (also cmmodpkg)
Check the man pages for more info.

Regds
TT

[renarios]

Hi Siva,

Before managing clusters in a production environment, you might consider taking an MC/ServiceGuard course. I took it too and never regretted it.
Some questions before shutting down a cluster node:
. Are all packages on that node configured to switch?
. If your cluster is not a 24*7 production environment: Do you want to do the operation inside or outside production time?
. Do you want all packages to switch to another node or shut them down too?

Maybe these questions are not the answer to your questions, but your issue is not just shutting down a node, but it goes much deeper than that:
. What to do when the cluster does not form afer after reboot;
. How to startup or switch packages?

Cheers,

Renarios

[Geoff Wild]

Good source of docs in:

http://docs.hp.com/en/ha.html


Halt cluster:
cmhaltcl

Halt packages:
cmhaltpkg

View cluster:
cmviewcl

Start cluster:
cmruncl

Start packages:
cmrunpkg

Enable switching (will also start package if not running):
cmmodpkg -e

Rgds...Geoff

[Nguyen Anh Tien]

Start Cluster:
#cmruncl -v
Stop cluster:
#cmhaltcl
start node
#cmrunnode nodename
halt node
#cmhatlnode nodename
HTH
tienna