Martha,
Maybe minidisk cache is active on one of the systems. Did you define the DASD
as Shared?
Dennis
18 Jan 1911, one hundred years ago today, Eugene Ely makes the first successful
airplane landing on a warship, landing on the armored cruiser USS Pennsylvania
in San Francisco Bay.
-----Original Message-----
From: The IBM z/VM Operating System [mailto:[email protected]] On Behalf
Of Martha McConaghy
Sent: Monday, January 17, 2011 09:16
To: [email protected]
Subject: [IBMVM] CMS disk weirdness between processors
I'm in the process of migrating our production LPARs from a z9 to a z10 and
I've found a bit of weirdness. Since the z10 has been around awhile, I
assume this isn't anything new, but I wonder why it is happening.
I've found that a CMS minidisk that is created while on the z9, is readable
by a VM system on the z10. However, if (from the z10) a fle is modified,
that file is no longer readable by the CMS system on the z9.
I get a DMSXIN104S error
code 3 when trying to read the file. Moreover, if (from the z9), I try to
write a new file to the disk, I get a different error, and CMS crashes.
(All of these z/VM systems are the same by the way, z/VM 5.4.0 RSU 1001.)
I've always been able to share disks between systems on different processors
before, so I wonder what is different now? I've got a z990 that I still
have to maintain and this is going to make life more difficult.
Martha
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