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: Then, you can check the sfwcom interface’s status again by running the  lscluster command. 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. 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. 314  IBM PowerHA SystemMirror V7.2.3 for IBM AIX and V7.2.2 for Linux 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 Example 8-16 Enabling RSCT cthags resource monitoring Example 8-15 Restoring the CAA node_timeout parameter 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 Restoring the CAA node_timeout variable Enabling cthags monitoring  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