Check if you have PTF UM32790 for z/VM540. It is on the 1002 RSU.
Are you using HYPERPAV? If so, removing HYPERPAV volume use from your VM LPAR
should resolve the problem.
We had similar problem and the applying 1002 RSU service fixed it.
Example:
1. Q CU 0039 PAVMODE
If it is in any kind of PAV mode then:
2. SET CU NOPAV 0039
3. RUN your test.
Hope this helps!
Waheb Boukhemis
McJunkin Red Man Corporation
Email: [email protected]
Phone: +1-304-348-1588
Fax: +1-304-348-4902
Cell: +1-304-993-6070
www.MRCPVF.com
--------------------------------------------------------------------------
From: The IBM z/VM Operating System [mailto:[email protected]] On Behalf
Of Steve Perez
Sent: Tuesday, March 01, 2011 3:23 PM
To: [email protected]
Subject: zLinux OS disk read-only
Hello All,
Has anyone run into a situation where the zLinux OS disk has become READ-
ONLY access? We are running z/Linux under z/VM 5.4 Redhat 5.4.
My zLinux Admin were doing compares between the production environment
versus the Test D/R environment and noticed it. He issued the following
on the prod zLinux guest environment:
# mount -o remount,rw /dev/VolGroup01/LogVol00
mount: block device /dev/VolGroup01/LogVol00 is write-protected, mounting
read-only
Since we are testing our D/R process at the moment for the z/VM LPAR we
are unsure at this point whether that is a contributing factor. It should
not be but we can't rule it out. We paused our PPRC/Global mirroring from
the z/OS side before starting the D/R activities to perform recovery of
the z/VM & z/Linux. The problem was found while in the middle of
verifying/comparing environments on the zLinux side. I can link to the
minidisk that is used to IPL that zLinux guest and it shows R/W when I
issue Q LINKS. All other minidisks owned by that zLinux guest are R/W as
well. From my perspective (z/VM) all looks good.
Any input would be appreciated, if anything to rule out that PPRC/GM would
have contributed to this.
Thanks.
Steve.
