IBM DB2 initscript for RedHat/CentOS 5 and 6 useful when creating an active/passive cluster with Red Hat Cluster Suite.
Copy the script to /etc/init.d/ and give it execute permissions:
# cp db2 /etc/init.d/
# chmod +x /etc/init.d/db2
Set the instance owner variable in the script (i.e. db2inst1):
DB2USER=db2inst1
and optionally rename it to db2-$DB2USER(in case of multiple instances):
# cp /etc/init.d/db2 /etc/init.d/db2-db2inst1
Usage:
service db2 {start|stop|restart|status}