Managing Serviceguard Extension for SAP Version B.05.10, September 2010

NOTE: The masterMDM Serviceguard package does not require a check function. The only goal
of this package is to coordinate a cluster wide start and stop of the MDM server packages and
therefore does not need a monitor.
Setup Step: MDM250
Synchronize the /etc/cmcluster/MDM contents with second node
Synchronize the contents of directory /etc/cmcluster/MDM with the second node using
following command:
clunode1:
scp –pr /etc/cmcluster/MDM clunode2:/etc/cmcluster/MDM
Setup Step: MDM252
(a) Single - Starting and Stopping the mgroupMDM package
Since everything is grouped in one package the following command will start and stop the
package and all it's MDM server components (mdb, mds, mdss and mdis) at the same time -
on the cluster node the cmrunpkg command is executed.
cmrunpkg mgroupMDM
cmhaltpkg mgroupMDM
Setup Step: MDM254
(b) Multiple - Starting and Stopping the masterMDM package
The masterMDM package is responsible for starting other Serviceguard packages (mdmDB,
mdsMDM, mdisMDM and mdssMDM) in a cluster in the required order as specified in file sap.config.
With this information, the masterMDM will run the appropriate cmrunpkg commands to start
the packages. Before executing cmrunpkg make sure that the MDM server packages (mdmDB,
mdsMDM, mdisMDM and mdssMDM) are halted from the previous installation tasks.The command
cmhaltpkg masterMDM will stop all MDM Serviceguard packages in the reverse order as they
were started.
NOTE: Since the masterMDM package uses standard cmrunpkg commands to start other
packages - the node on which to run the underlying Serviceguard packages on - is obtained from
the variable NODE_NAME as specified in files mdmMDM.config, mdsMDM.config,
mdisMDM.config and mdssMDM.config.
cmrunpkg masterMDM
cmhaltpkg masterMDM
Setup Step: MDM256
Serviceguard and MDM package log files
The log files for Serviceguard packages and the command executed can be found in the following
directories:
nfsMDM log files:
/etc/cmcluster/MDMNFS/nfsMDM.control.script.log
mgroupMDM log files:
/etc/cmcluster/MDM/mgroupMDM.control.script.log
masterMDM log files:
/etc/cmcluster/MDM/dbMDM.control.script.log
/etc/cmcluster/MDM/masterMDM.control.script.log
/etc/cmcluster/MDM/mdisMDM.control.script.log
/etc/cmcluster/MDM/mdsMDM.control.script.log
/etc/cmcluster/MDM/mdssMDM.control.script.log
Installation and Configuration Considerations for MDM 5.5 in a Serviceguard legacy environment 153