IGW309E

Explanation
An error occurred when the system tried to join
XCF. The message text displays the return and reason code.
In
the message text:
membername
The name of the system within the sysplex.
groupname
The name of other members of the XCF group in the sysplex.
return-code
The return code
reason-code
The reason code

System action
The system will not allow use of PDSE. Until the
inability to join the XCF group is resolved, this system cannot run
with PDSE support. PDSE support is disabled because PDSE locking is
not available.

Operator response
Notify the system programmer.

System programmer response
This is a warning message that the
XCF configuration may be incorrect, or there is a problem with XCF.

Source
Storage management subsystem (SMS)