M204.0029 File in use by subsystem subsysName, command rejected
The file that the user is trying to open is in use by the subsystem subsysName. The subsystem has the file lock option set in the subsystem definition. This option prevents any user from opening a subsystem file when the subsystem is active.
Response: Wait until the file is no longer in use; that is, wait until the subsystem is stopped, and retry.
|RETCODEO=0||Sets online return code|
|RETCODEB=4||Sets batch (single user) return code|
|CLASS=E||Error class; the message can be suppressed with the X'04' bit setting of the MSGCTL parameter|
|AUDITER||Writes the message with line type ER to the audit trail|
|COUNT||Increments the error count (ERCNT) parameter|