Note:  After this step, if the sfwcom interface is still not UP, check the virtual local area network (VLAN) storage framework communication device’s status. If it is in the defined status, you must reconfigure it by running the following command: 

AIX720_LPM1:/ # lsdev -C|grep vLAN sfwcomm1 Defined vLAN Storage Framework Comm AIX720_LPM1:/ # rmdev -l sfwcomm1; sleep 2; mkdev -l sfwcomm1 sfwcomm1 Defined sfwcomm1 Available 

Then, you can check the sfwcom interface’s status again by running the lscluster command. 

## Restoring the CAA node_timeout variable 

Example 8-15 shows how to restore the CAA node_timeout variable. 

Note:  In a PowerHA cluster environment, the default value of node_timeout  is 30 seconds. 

AIX720_LPM1:/ # clmgr -f modify cluster HEARTBEAT_FREQUENCY="30" 1 tunable updated on cluster LPMCluster. AIX720_LPM1:/ # clctrl -tune -L NAME DEF MIN MAX UNIT SCOPE ENTITY_NAME(UUID) CUR ... node_timeout 20000 10000 600000 milliseconds c n LPMCluster(11403f34-c4b7-11e5-8014-56c6a3855d04) 30000 

## Enabling cthags monitoring 

Example 8-16 shows how to enable the RSCT cthags  critical resource monitoring function. 

Note:  In this case, there are only  two nodes in this cluster, so you disable the function on both nodes before LPM. Only one node is shown in this example, but the command is run on both nodes. 

AIX720_LPM1:/ # /usr/sbin/rsct/bin/dms/startdms -s cthags Dead Man Switch Enabled DMS Rearming Thread created AIX720_LPM1:/ # /usr/sbin/rsct/bin/hags_enable_client_kill -s cthags AIX720_LPM1:/ # lssrc -ls cthags Subsystem Group PID Status  cthags cthags 13173166 active 5 locally-connected clients. Their PIDs: 9175342(IBM.ConfigRMd) 6619600(rmcd) 14549496(IBM.StorageRMd) 19792370(clstrmgr) 19268008(gsclvmd) HA Group Services domain information: Domain established by node 1 

