Database instance was down due to VCS ERROR V-16-1-13067

Issue

• Database instance was down unexpectedly.

• Below errors were noticed in the logs(/var/log/messages):

Jun 14 13:28:45 Hostname AgentFramework[8801]: VCS ERROR V-16-1-13067 Thread(4115078032) Agent is calling clean for resource(vcs_inst1) because the resource became OFFLINE unexpectedly, on its own. 
Jun 14 13:28:45 Hostname Had[3806]: VCS ERROR V-16-1-13067 (PG786) Agent is calling clean for resource(vcs_inst1) because the resource became OFFLINE unexpectedly, on its own. 
Jun 14 13:28:53 Hostname DB2[21512]:  2012-06-14-13.28.53.759158+480 I2053168E432        LEVEL: Error PID     : 21512                TID  : 47386764241216PROC : db2sysc 0 INSTANCE: aeinst1              NODE : 000 EDUID   : 17                   EDUNAME: db2tcpcm 0 FUNCTION: DB2 UDB, common communication, sqlcctcpconnmgr_child, probe:155 MESSAGE : DIA3208E Error encountered in TCP/IP protocol support. TCP/IP            function "close". Socket was "3". Errno was "9". 
Jun 14 13:32:45 Hostname AgentFramework[8801]: VCS ERROR V-16-1-13006 Thread(4100979600) Resource(vcs_inst1): clean procedure did not complete within the expected time. 
Jun 14 13:32:45 Hostname Had[3806]: VCS ERROR V-16-1-13006 (PG786) Resource(vcs_inst1): clean procedure did not complete within the expected time. 
......
Jun 14 14:03:53 Hostname AgentFramework[8801]: VCS ERROR V-16-1-13078 Thread(4136057744) Resource(vcs_inst1) - clean completed successfully after 1 failed attempts. 
Jun 14 14:03:53 Hostname AgentFramework[8801]: VCS ERROR V-16-1-13073 Thread(4136057744) Resource(vcs_inst1) became OFFLINE unexpectedly on its own. Agent is restarting (attempt number 1 of 3) the resource. 
Jun 14 14:03:53 Hostname Had[3806]: VCS ERROR V-16-1-13073 (PG786) Resource(vcs_inst1) became OFFLINE unexpectedly on its own. Agent is restarting (attempt number 1 of 3) the resource.