I kind of went through a similar thing last week with 2 5.2.0 systems. Try a Detach with a leave option from the writing system, then vary off from there. Then try it on the other system.
Marcy Cortes "This message may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose, or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation." -----Original Message----- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Shimon Lebowitz Sent: Tuesday, October 17, 2006 3:39 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: [IBMVM] Sharing unassigned tape On 17 Oct 2006 at 14:52, Romanowski, John (OFT) wrote: > Shimon, > Is the 5.2 system a guest of 4.4 (not sure from your post)? > If so, I would DFSMSRM MOUNT the tape to the guest userid and on 5.2 > system just ATTACH the tape drive to MAINT at 181 and use the virtual > cartridge. Skip the NOASSIGN stuff. I guess I really was not clear, my apologies. The 4.4 and 5.2 are 2 different LPARs. 5.2 can only run in 64bit mode, and our 4.4 is 31bit, so 2nd level is out. On 17 Oct 2006 at 13:41, Mike Walter wrote: > I'm guessing that the z/VM 520 "ATTACH" command is causing an unload. No, I checked that by doing a REW and DVOL1 from 4.4 *after* the error on 5.2 . The tape was still mounted and readable in 4.4 > Perhaps try attaching the drive on both systems with NOASSIGN, then > mount it on 4.4 and try using it on 5.2. I don't believe it is possible for the DFSMS to mount a tape on a VTS drive without taking it. After the tape is mounted the drive gets attached to the requesting user. That was why I ran the mount in 4.4 first, and then just tried to use the drive as-is on 5.2 Thanks for all ideas! Keep them coming :-) Shimon