Starting the IRLM
The internal resource lock manager (IRLM) must be available when you start Db2.
About this task
When Db2 is installed, you normally specify that the IRLM be started automatically. Then, if the IRLM is not available when Db2 is started, Db2 starts it, and periodically checks whether it is up before attempting to connect. If the attempt to start the IRLM fails, Db2 terminates.
Consider starting the IRLM manually if you are having problems starting Db2 for either of the following reasons:
- An IDENTIFY or CONNECT to a data sharing group fails.
- Db2 experiences a failure that involves the IRLM.
When you start the IRLM manually, you can generate a dump to collect diagnostic information because IRLM does not stop automatically.
Procedure
If
an automatic IRLM start has not been specified, to start IRLM:
Issue the z/OS® START irlmproc command.
When started, the IRLM issues this message to the z/OS console:
DXR117I irlmnm INITIALIZATION COMPLETE