My latest project involves running an emulated IBM mainframe on a virtual machine scheduled by Nomad. I came across a situation where my TSO session became unresponsive and I was unable to break out of the error by
LOGOFF into my 3270 terminal.
If you have access to the operator’s console, you can CANCEL the session by issuing
/C U=<USER_ID>. This will terminate the session and allow you to log in again through your terminal.
Happy main framing!