If the two guests are truly using the same, R/W disks, then even if they don¹t know it yet, your disks are corrupted. I hope you have backups.
We run the same guest on two different z/VM systems, ONE SYSTEM AT A TIME. It is very important that it not be logged in on both systems at the same time. This has been accidentally tested here and proven to be fatal to the Linux system. -- Robert P. Nix Mayo Foundation .~. RO-OE-5-55 200 First Street SW /V\ 507-284-0844 Rochester, MN 55905 /( )\ ----- ^^-^^ "In theory, theory and practice are the same, but in practice, theory and practice are different." On 7/24/09 5:30 PM, "O'Brien, Dennis L" <dennis.l.o'br...@bankofamerica.com> wrote: > Sunny, > If you really have two guests up at the same time, using the same DASD, I > can¹t believe that one or both of them haven¹t 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 O¹Brien > > "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:ib...@listserv.uark.edu] On Behalf > Of sunny...@wcb.ab.ca > Sent: Friday, July 24, 2009 15:20 > To: IBMVM@LISTSERV.UARK.EDU > 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 > > > This message is intended only for the addressee. It may contain privileged or > confidential information. Any unauthorized disclosure is strictly prohibited. > If you have received this message in error, please notify us immediately so > that we may correct our internal records. Please then delete the original > email. Thank you. (Sent by Webgate1) >
