Sunny,
If you really have two guests up at the same time, using the same DASD, I can’t
believe that one or both of them haven’t crashed.
We have the same guests defined on two z/VM systems. We use the XLINK feature
of CSE to make sure that only one of them can get the DASD read/write. If the
second one is accidentally logged on, some code in PROFILE EXEC will discover
that the DASD is read-only, message the operator, and log off.
Dennis O’Brien
"That's one small step for (a) man, one giant leap for mankind". -- Neil
Armstrong, 20 July 1969, Sea of Tranquility
From: The IBM z/VM Operating System [mailto:[email protected]] On Behalf
Of [email protected]
Sent: Friday, July 24, 2009 15:20
To: [email protected]
Subject: [IBMVM] Is it bad to make one zlinux running on 2 z/vm?
We sometimes accidently turn on one linux guest on two z/VM systems.
Both z/VM system has their own DIRMAINT and RACF. No RSCS.
We add the same guest direct file to two z/VM so it makes the flexibility to
boot.
Is it bad to make one zlinux running on 2 z/vm?
So far we didn't get any complaint. But I can't expain myself how. It has same
ip address and the same dasds.
sunny
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