-------------------------<snip>--------------------------
Hi to all. Does anybody know if it is possible to define duplicate ctc addresses
to a DR LPAR?
I have two processors and can define duplicate LPARs to each of them, so
that each CPC has LPARS A to E defined to it. CPC 1 has LPARS A and B
running normally on it and CPC 2 has LPARs C D and E. IF I have a problem
with CPC 1, I would like to IPL LPARs A and B on CPC2, but without having to
change my VTAM definitions to match the new range of CTC addresses. Could
I generate the same CTC addresses from C,D,E to A nd B regardless of which
CPC the LPAR is running on? Maybe the LPARS A and B could be detached from
CPC 2 in the normal gen, but in the event of a problem, would I be able to
dynamically detach LPARs A and B from CPC 1 and attach them to CPC2 so
that the same CTC addresses would be valid?
Assume there is enough memory and processing power to handle all LPARs on
any CPC.
Otherwise is there any other method of handling this problem?
------------------------<unsnip>-----------------------------
If you'll contact me offlist, I'll try and help you untangle this issue.
Dealing with CTC's can be a PITA or it can be fairly easy, depending on
needs, equipment and software requirements. I would probably define the
complete range of CTC addresses on both CPC's, varying them offline or
online as needed when each image is IPL'd. I like to define CTC devices
in full strings of 32 devices for each image, then dedicate a string to
each image. So Image A would be contected via 1CAx and 1CBx, Image B
would be contacted via 1CCx and 1CDx, etc. or you might use only 16
devices, so that Image A would be contacted via 1CAx, Image B would be
contacted via 1CBx, etc., using the third character of the address as a
"image identifier". Just my thoughts, for what they're worth.
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