On Tue, Feb 10, 2009 at 08:07:33AM +0000, Mark Benson wrote: > HHCCP029E ESA/390 mode IPL failed: CSW status=0020 > Sense=00000000 00C00300 00000000 00800100 010000FF FF000000 You need to add "ARCHTYPE S/370" to the Hercules config file. It's trying to run in 390 mode, but needs to run in 370 mode. Bill -- Bill Bradford Houston, Texas