CASCD0054S Severe Error function while starting region, reason = errno

A UNIX call returned with errno set to errno.

The call that failed is specified by errno, where:

 
1 = msgget 
2 = msgsnd 
3 = fgets 
4 = fopen 
5 = mknod
System Action:
The region is not started.
Resolution:
Determine the cause of the error and retry if appropriate.
Module:
dfhtxp
Destination:
standard error