On Monday, 11/17/2008 at 07:09 EST, Mike Hammock <[EMAIL PROTECTED]> wrote: > A zVM 5.3 user (not even one of our customers) is trying to use a 3590 to > migrate from their current ( about to expire) FLEX-ES system to a system z > and is having problems.
> From zVM he can (apparently) write to the tape and do all the control > commands (rewind, unload, wtm, etc.). But he cannot read anything that was > written by VM. If he does a DDR DUMP, he gets an I/O error on the DDR > RESTORE. If he does a VMFLPC2 or TAPE DUMP, the corresponding LOAD fails > with a DMSP2C057E " Invalid Record Format". My best guess is that the > drive is writing in one mode (COMP/NOCOMP) and trying to read in the > other... but.... > - I think that when reading, the drive should detect the mode used to write > the tape and handle it either way > - We tried various combinations of MODE COMP/NOCOMP to try to force it to > the right mode, with no apparent improvement. > I don't believe he has tried a stand-alone DDR, but I'm not optimistic that > would be any better. > > Any suggestions? Has he used DDR, MOVEFILE, DITTO, PIPE, whatever to simply look at the tape? Perhaps it has a standard label on it, something easily handled by z/OS. If so, TAPE FSF to skip the label, then TAPE LOAD. Alan Altmark z/VM Development IBM Endicott
