<----- snip ----->
We have 2 LPARs in a sysplex, running on 2 different machines in 2 different
sites.
What happened was we lost connectivity between our 2 sites for a few
seconds.
As a result, MVSB (running in site B) lost its connectivity to the
primary SYSPELX couple data set residing on dasd in site A, and issued the
following message:

IXC253I PRIMARY COUPLE DATA SET 953
XCF.COUPLE01 FOR SYSPLEX
IS BEING REMOVED BECAUSE OF AN I/O ERROR
DETECTED BY SYSTEM MVSB
ERROR CASE: PERMANENT ERROR

The above message was then issued by MVSA as well.
Sadly enough, our alternate SYSPLEX couple data set resides on dasd in site
B.
So MVSA had no connectivity to it, which led to a Disabled Wait 0A2 RC 20 in
MVSA.
<----- snip ----->

Did you lose the XCF signalling connectivity at all? If you have got the
above message on the MVSA as well, the connection was still there at the
time.

<----- snip ----->
After that, MVSB issued the following message:
IXC256A REMOVAL OF PRIMARY COUPLE DATA SET 463
XCF.COUPLE01 FOR SYSPLEX
CANNOT COMPLETE UNTIL
THE FOLLOWING SYSTEM(S) ACKNOWLEDGE THE REMOVAL:
MVSA

Of course, MVSA could never acknowledge since it was in a disabled wait.
<----- snip ----->

Your automation tool could vary offline system(s) that are already in
disabled wait in the case of IXC256A.


Zaromil

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