If you use the GUI program Hardware Configuration Manager, you give him
the two CHPIDs you want to configure, and how many devices you want
genned, and he automatically does all fo the devices for you along with
their interconnects.
I, like you, spent hours/weeks doing the configuration. Found out about
HCM and did the new I/O gen in one shot.
Rick Fochtman wrote:
--------------------------<snip>-------------------------
I heard some IBM'ers in the past say any more than one system in a GRS Ring
is too many..... Ours runs great wih 3 Lpars though. i was under the
impression that the whole thing would be slowed down by the Lpar with the
least number of Mips but our Sysprog one is like 13 Mips or something and
the whole thing flies.... and yes we do run DB2.......
---------------------------<unsnip>------------------------
I ran GRS in a 4-system ring using only ESCON CTC connections and never
experienced any performance problems, but I was not running DB2. YMMV
The most difficult part that I found was defining the ESCON CTC devices, and the
related types of connections, in the IOCDS. Several Sundays shot in
trial-and-error attempts, since "local talent" was fairly inexperienced at that
time. I defined strings of 16 devices for each LPAR so my "Communications
Kiddies" could have lots of connections if they wanted them.
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