Interpreting error message IDs

While working in the OMVS, if you get an error message and want to understand exactly what the error message means there is a website you can go to.

Go to: IBM LookAt and enter the message ID. Then select your OS level and then press enter. The output will give a better understanding of the error message. To decode the errno2 values, use the following command:
bpxmtext <reason_code>
Reason_code is specified as 8 hexadecimal characters. Leading zeros can be omitted.