Ian, If you could explain more about what you're really trying to do, then perhaps we can help with some alternate solutions.
It it's just that you get an rc=28 (the "File not found" return code; justifiable for a R/O disk with no files or only filemode 0 files unless the MODE0 options is used), then it's working as designed. As stated earlier, just adding a "Dummy File" is a simple action. But without knowing that you are really trying to do, we can't provide a correct answer. Mike Walter Hewitt Associates Any opinions expressed herein are mine alone and do not necessarily represent the opinions or policies of Hewitt Associates. "Stracka, James (GTI)" <[EMAIL PROTECTED]> Sent by: "The IBM z/VM Operating System" <IBMVM@LISTSERV.UARK.EDU> 09/18/2007 02:56 PM Please respond to "The IBM z/VM Operating System" <IBMVM@LISTSERV.UARK.EDU> To IBMVM@LISTSERV.UARK.EDU cc Subject Re: ACCESS empty RR disk fails The disk can have files but if they are all MODE 0, you do not get to ACCESS it either. -----Original Message----- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of David Kreuter Sent: Tuesday, September 18, 2007 3:50 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: ACCESS empty RR disk fails Ian: You can roll your own/fend for yourself. Start by using DDR. Say your mdisk is at vaddr 1B0. DDR INPUT 1B0 DASD TYPE 0 0 3 cyl 0 head 0 record 3 has the label information. You can decode the info there and get the numbers you need. Or if its a small sized disk, and you have sufficient tdisk, define a tdisk of the same size, ddr the r/o over to the r/w tdisk and et voila you can access and then see your stats. This would even work by creating a 1 cylinder tdisk (and then just copy cyl 0), but ... it's weird and somewhat dangerous .... David ________________________________ From: The IBM z/VM Operating System on behalf of Ian S. Worthington Sent: Tue 9/18/2007 12:20 PM To: IBMVM@LISTSERV.UARK.EDU Subject: [IBMVM] ACCESS empty RR disk fails I've come across this a few times but never understood *why* accessing an empty disk I've linked RR should fail (rc=28, iirc). Any good reason for that? And any way to *prevent* it from failing? (I'm not after the files I'm after the disk stats I can only get when the disk is accessed.) ian ... -------------------------------------------------------- This message w/attachments (message) may be privileged, confidential or proprietary, and if you are not an intended recipient, please notify the sender, do not use or share it and delete it. Unless specifically indicated, this message is not an offer to sell or a solicitation of any investment products or other financial product or service, an official confirmation of any transaction, or an official statement of Merrill Lynch. Subject to applicable law, Merrill Lynch may monitor, review and retain e-communications (EC) traveling through its networks/systems. The laws of the country of each sender/recipient may impact the handling of EC, and EC may be archived, supervised and produced in countries other than the country in which you are located. This message cannot be guaranteed to be secure or error-free. This message is subject to terms available at the following link: http://www.ml.com/e-communications_terms/ . By messaging with Merrill Lynch you consent to the foregoing. -------------------------------------------------------- The information contained in this e-mail and any accompanying documents may contain information that is confidential or otherwise protected from disclosure. If you are not the intended recipient of this message, or if this message has been addressed to you in error, please immediately alert the sender by reply e-mail and then delete this message, including any attachments. Any dissemination, distribution or other use of the contents of this message by anyone other than the intended recipient is strictly prohibited. All messages sent to and from this e-mail address may be monitored as permitted by applicable law and regulations to ensure compliance with our internal policies and to protect our business. Emails are not secure and cannot be guaranteed to be error free as they can be intercepted, amended, lost or destroyed, or contain viruses. You are deemed to have accepted these risks if you communicate with us by email.
