Martha, Maybe minidisk cache is active on one of the systems. Did you define the DASD as Shared?
Dennis 18 Jan 1911, one hundred years ago today, Eugene Ely makes the first successful airplane landing on a warship, landing on the armored cruiser USS Pennsylvania in San Francisco Bay. -----Original Message----- From: The IBM z/VM Operating System [mailto:IBMVM@LISTSERV.UARK.EDU] On Behalf Of Martha McConaghy Sent: Monday, January 17, 2011 09:16 To: IBMVM@LISTSERV.UARK.EDU Subject: [IBMVM] CMS disk weirdness between processors I'm in the process of migrating our production LPARs from a z9 to a z10 and I've found a bit of weirdness. Since the z10 has been around awhile, I assume this isn't anything new, but I wonder why it is happening. I've found that a CMS minidisk that is created while on the z9, is readable by a VM system on the z10. However, if (from the z10) a fle is modified, that file is no longer readable by the CMS system on the z9. I get a DMSXIN104S error code 3 when trying to read the file. Moreover, if (from the z9), I try to write a new file to the disk, I get a different error, and CMS crashes. (All of these z/VM systems are the same by the way, z/VM 5.4.0 RSU 1001.) I've always been able to share disks between systems on different processors before, so I wonder what is different now? I've got a z990 that I still have to maintain and this is going to make life more difficult. Martha ---------------------------------------------------------------------- This message w/attachments (message) is intended solely for the use of the intended recipient(s) and may contain information that is privileged, confidential or proprietary. If you are not an intended recipient, please notify the sender, and then please delete and destroy all copies and attachments, and be advised that any review or dissemination of, or the taking of any action in reliance on, the information contained in or attached to this message is prohibited. 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 Sender. Subject to applicable law, Sender may intercept, monitor, review and retain e-communications (EC) traveling through its networks/systems and may produce any such EC to regulators, law enforcement, in litigation and as required by law. 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 free of errors or viruses. References to "Sender" are references to any subsidiary of Bank of America Corporation. Securities and Insurance Products: * Are Not FDIC Insured * Are Not Bank Guaranteed * May Lose Value * Are Not a Bank Deposit * Are Not a Condition to Any Banking Service or Activity * Are Not Insured by Any Federal Government Agency. Attachments that are part of this EC may have additional important disclosures and disclaimers, which you should read. This message is subject to terms available at the following link: http://www.bankofamerica.com/emaildisclaimer. By messaging with Sender you consent to the foregoing.