As far as I know, there wasn't any new CP APAR for multiuser support. Attaching multiuser will only help in the VM environment, not across LPARS. If there was an assign issue, CP would not allow RMS to attach the drive. Although, once APAR VM64062 to DFSMS (RMS) comes out, with a corresponding CP APAR, RMS will no longer attach the drive to itself to issue a query command. I do not believe RMS has any access to determine any assign status of the device. Unless the ATL returns information on this which RMS is currently not looking at. RMS does not look at CP RDEV control blocks.
Best Regards, Les Geer IBM z/VM and Linux Development >Jr, > >I did the some tests and I didn't canceled anything on my MVS lpar. >Was I lucky ? It is better to wait for Les answer. >If it was a problem, couldn't the new ptf brought by z/VM530, that permits >dfsmsrm to att multiuser, resolve this ? > >Alain > > > > >> Alain, >> >> Be careful! DFSMSRM QUERY LIB DEV requires an ATTACH/DETACH of the >> device by the RMSMASTR virtual machine. >> >> I'm not sure if that will be disruptive to a z/OS LPAR that might be >> using the tape drive (perhaps Les can confirm if this is an issue). >> >> JR (Steven) Imler >> CA >> Senior Software Engineer >> Tel: +1 703 708 3479 >> Fax: +1 703 708 3267 >> [EMAIL PROTECTED] >> >> >> -----Original Message----- >> From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On >> Behalf Of Alain Benveniste >> Sent: Monday, March 12, 2007 09:44 AM >> To: IBMVM@LISTSERV.UARK.EDU >> Subject: Re: How to share tape drives >> >> You're right JR, I tested this, this morning and I can't get any info. >> You also probably means there is no way to obtain the info I need... >> >> But that generates an other question : >> >> What Control Blocks dfsmsrm uses to send back the info we can see with >> the cmd : >> dfsmsrm q lib dev xxxx (assign >> >> >> Alain >> >> >> > Alain, >> > >> > The control block "hints" that Alan provided are only relevant when >> > running z/OS under z/VM. The information does not apply when running >> > z/OS in a separate LPAR from the z/VM system. >> > >> > JR (Steven) Imler >> > CA >> > Senior Software Engineer >> > Tel: +1 703 708 3479 >> > Fax: +1 703 708 3267 >> > [EMAIL PROTECTED] >> > >> > >> > -----Original Message----- >> > From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] >> On >> > Behalf Of Alain Benveniste >> > Sent: Monday, March 12, 2007 12:02 AM >> > To: IBMVM@LISTSERV.UARK.EDU >> > Subject: Re: How to share tape drives >> > >> > Alan, >> > >> > I was looking that direction too. Since I a not a hard Control Block >> > game= >> > r >> > it was bit empiric for me. I thougt to test the RDEVSID today with no >> > conviction. >> > >> > Now that you help me this way I have something more concrete to look >> at. >> > >> > This would work in both cases when we are working : >> > - in LPAR mode (21 partitions) >> > - in D/R when our 14 MVS are under VM >> > >> > Is this info was missing to JR and you ? >> > >> > Alain >> > >>
