Thanks to all of you who responded. The answer turns out to be a fact not in 
evidence in my original question.
   
  System "A" is in LPAR mode; single partition, but LPAR nonetheless.
   
  As such, according to GRS and IOS Level2, The CNC channel described below 
must be dedicated, not shared. The control unit on the other side could also be 
modified to work but that would require a lot more HCD work than simply 
changing the channel so to speak.
   
  After changing to dedicated, GRS popped right up.
   
  Now I know why MIM is such a money maker.
   
  Thanks again.

Ed Long <[EMAIL PROTECTED]> wrote:
    Hi all.
  I am trying to build a two system GRS ring between my two 7060's. Why? 
Because I have a large V960 disk array between them, and I need to protect 
myself from myself.
   
  So far, I have a single ESCON connection defined between them, call them 
System A and System B. System B thinks the channel is a CTC; System A a CNC. 
Both systems are z/OS 1.5 in MONOPLEX mode.
   
  For GRS purposes, I have defined the relationship as "Mixed".
   
  System B, after a D GRS, shows the links as Quiet. System A, considers the 
links disabled. I have updated the GRS parmlib entries to include the CTC's as 
per the GRS book. D GRS,SYSTEM only shows the local system on either system. 
The RNL list is still the default.
   
  Now my questions; Do I need a second ESCON cable between the boxes with 
System A's CHPID defined as CTC and B's as CNC? If so, which CTC's do I put in 
the definitions?  The GRS planning book says to include the same definitions on 
both sides.
  What am I doing wrong? Have any of you ever lashed two 7060's together like 
this?
   
  Thanks for the assist.


Edward Long 

Edward Long


Edward Long

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