IEE591I

Explanation
To process a command, the system tried to open
a data set to access a parmlib member specified on the command. The
system could not open the data set.
In the message text: memberxx
The parmlib member specified on the command.
dsname
The data set specified on the command that could not be accessed.

System action
The system rejects the command.

Operator response
Make sure the pack on which the specified
data set resides is mounted.
If it was mounted, then this error
is probably a hardware error on the initial read. Contact hardware
support.

Source
Master scheduler

Module
IEEMB878

Routing code
*

Descriptor code
5