> -----Original Message----- > From: The IBM z/VM Operating System > [mailto:[EMAIL PROTECTED] On Behalf Of Schuh, Richard > Sent: Thursday, April 10, 2008 1:30 PM > To: IBMVM@LISTSERV.UARK.EDU > Subject: Re: Ten Questions to ask a Prospective z/VM Systems > Programmer > > > If you share with a user outside your own LPAR, you need real > Reserve/Release, not virtual. The virtual is for when you > have multiple > guests running in the same LPAR, under the same CP, who need the > Reserve/release. Virtual reserve/Release will do nothing to prevent > clashes with other LPARs. > > > Regards, > Richard Schuh IIRC, virtual reserve / release plus a full-volume mdisk is needed to share with other systems on other LPARs successfully. I.e. the virtual reserve / release, in that case, actually does a reserve to the volume in question.
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