I did find HCPSWU2830I, but the others are still among the missing.
Original message: ________________________________________________________________________ ____ HCPSWU2843E , HCPSWU2831E and HCPSWU2830I do not seem to be documented anywhere obvious; not in Lookat Messages, not in the HELP. I have even searched the books (not just the titles) of the z/VM 5.2 and z/VM 5.3 shelves and found no hits. What is going on when they appear? What do we do to fix it? The full text of the messages follows: HCPSWU2843E VM3 A stall was detected for TCP/IP Controller DTCVSM1. It was managing device 0F00 for VSWITCH System VM3SW1. HCPSWU2831E CP Controller error 5 for DTCVSW1 HCPSWU2830I VSWITCH System VM3SW1 status is ready DTCVSW2 is VSWITCH Controller Regards, Richard Schuh