Marc, I had a very interesting experience building our GRS ring. One point I have not seen mentioned is that for GRS the CTC's must be a device type of BCTC. If you would like to discus offline, just email me direct.
Jimmy < snip I've succeeded in getting the IO devices online on each z/OS system. But when I IPL with GRS turned on I get ISG046E CTC 4C00 DISABLED DUE TO HARDWARE ERROR CODE=05 On 1 system and ISG046E CTC 3C00 DISABLED DUE TO HARDWARE ERROR CODE=05 on the other. I've looked at II14241 and verified that the CHPIDs say Initialization complete. Is there some way to verify that each end is REALLY talking to each other, rather than just rely on the fact that the device(s) are online? -- Mark Pace Mainline Information Systems >unsnip ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html