TDP logs CP unit and channel errors in hexadecimal format to an error log on the z/OS client.
Access and print the error log by using the appropriate error logging utility, such as the IBM EREP utility for z/OS clients.
The following figure shows a sample record returned by EREP. The four-digit hexadecimal numbers in the left-most column of the record are memory addresses.
Sample EREP Record

The tables in the following subsections describe the format and contents of the EREP record and the CSW sense byte: