I can't hazard a guess as to *why* the mismatch occurs, but maybe you can catch it in the act before things get restored to normal by trapping the HCP message with PROP or VM:Operator, and coding up an action routine to automatically issue diagnostic commands? It might be worth setting a global variable that only allows the action routine it issue diagnostic commands only once per device or path so that the console log won't get swamped.
Mike Walter Hewitt Associates The opinions expressed herein are mine alone, not my employer's. "Schuh, Richard" <[EMAIL PROTECTED]> Sent by: "VM/ESA and z/VM Discussions" <[email protected]> 11/11/2005 03:20 PM Please respond to "VM/ESA and z/VM Discussions" <[email protected]> To [email protected] cc Subject Message HCPDPM1281I We periodically get the message 18:07:57 HCPDPM1281I Path 2D to device 780D now offline; path group ID mismatch. for devices on a dasd string. These devices are used by a native TPF system and by TPF guests of VM. The description I find is: HCP1281I Path channel to device rdev now offline; path group ID mismatch. Explanation: The operating system has detected that one of the paths to a device has a path group ID that does not match that which the system uses to access the device. Since attempts to use this path would result in "hang" conditions, the system has marked the path offline. System Action: System action continues. Operator Response: If possible, physically reset the path and then vary it online to that device. The system seems to chug along normally. If we query paths to one of the devices, it shows all paths to be both physically and logically available. Can anyone hazard a guess as to (a) What the message is trying to tell us, and (b) what should be done about it? FWIW, the DASD is HDS. Regards, Richard Schuh 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.
