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. The 3590-E11 is ESCON attached to the FLEX system and the customer can read and write the tape from a zOS guest. Seems to work fine there so we know (believe?) he tape drive itself is functioning properly and VM has properly recognized the tape drive (all query commands coma back with expected results: q tape details... etc.) >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? Thanks Mike C. M. (Mike) Hammock Sr. Technical Support zFrame & IBM zSeries Solutions (404) 643-3258 [EMAIL PROTECTED] __________________________________________________________ This email may contain confidential and privileged material for the sole use of the intended recipient(s). Any review, use, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), please contact the sender by reply email and delete all copies of this message. To reply to our email administrator directly, send an email to [EMAIL PROTECTED]
