Yikes!   Yes - it's very bad...

You really need to investigate CSE (shared directory, shared RACF, XLINK
protection) if you're going to share directory entries like that.
Otherwise - NOLOG them on the side they should not come up on - and only
undo that when you want to switch - and then NOLOG the other side.  (or RACF
REVOKE is another way).

As far as using the same IP - well.... it is very hard to believe they were
both accessible .. so maybe no one was looking ;-)

Scott

On Fri, Jul 24, 2009 at 4:19 PM, <[email protected]> wrote:

>
> 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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