In a message dated 3/7/2007 4:47:23 P.M. Central Standard Time, David.A.Wright @ DOM.COM writes: >We have been getting MIM control file lockouts for almost a year. We have been working with STK (the DASD manufacturer), IBM and CA (MIM). So far, nothing has resolved the problem. I discovered the hard way once that there is no such thing as a "standalone test system." I tested some software on a test system, my code crashed the system just after its JES2 had gotten the checkpoint data set lock, the checkpoint and all SPOOL was shared (of course) with the production systems. You could be having some unexpected interference from any of the systems sharing the device with the MIM data set on it if there is any other allocated data on it. The start pending messages probably mean that some other system has the device reserved. First make sure there are no data sets on the device other than the MIM file. Next try to determine which LPAR has reserved the device, if any. Once you know which LPAR holds the reserve (if any), then you can work on resolving why that LPAR has not released the device. If no LPAR has reserved the device, then I agree with STK - there is/are probably bug(s) in the channel subsystem of one or more of the LPARs. If you can gather a GTF trace of all I/O events involving the device in question from all LPARs during the time of the lockout, I will be happy to study them and try to help resolve the problem. Reply to me privately if interested. Bill Fairchild Plainfield, IL
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