HMC 5250 Console Disconnects After a Period of Inactivity

Problem

After upgrading to HMC V4R2.1_0902, the HMC 5250 console can disconnect from a partition after 2 hours of inactivity. If the partition is running IBM® i5/OS™ with MF33488 or later, the console returns to the DST sign on screen. The user will see the 'resume' screen after logging back in. For earlier levels of i5/OS, the console session is lost. If the user attempts to reconnect, the console will hang with the message "0043 Connected - waiting for screen data".

Recovery

For i5/OS levels before MF33488, the only recovery is to IPL the partition.

To prevent the console hang problem from recurring until an e-fix is available, connect with a shared console or apply MF33488 or later to each i5/OS partition. Both methods allow console recovery without requiring an IPL of the partition.