You are right - I started counting bytes from the left starting at 1 instead of 0. At lest we sensitized one vendor to look at the manuals for devices their products claim to be ;-) However, in this case, it took your looking into the same manual and seeing things differently to achieve an acceptable result.
Regards, Richard Schuh > -----Original Message----- > From: The IBM z/VM Operating System > [mailto:[EMAIL PROTECTED] On Behalf Of Alan Altmark > Sent: Friday, July 25, 2008 10:51 AM > To: [email protected] > Subject: Re: CP Message > > On Friday, 07/25/2008 at 12:58 EDT, "Schuh, Richard" <[EMAIL PROTECTED]> > wrote: > > Thanks to Alan's help and the pointer to the manual that he > provided, > > the devices can now be detached without creating an error > message. I > > had searched for that document number and only got an Operator's > > manual as the result. I guess searching Documentation was not the > > right thing to do when looking for s document ;-) > > I found it by searching for "3490" and then looking for > "Reference" in the title. > > I think that's the last time we published the command > interface to tape drives (1992). The 3590 Hardware Reference > describes only the SCSI interface. > > > After reviewing the sense data documentation and suggesting > that they > > turn on bit 1 of sense byte 2 (The control unit is in communication > > with the device), success was achieved. > > That's bit 1 of sense byte 1. :-) Also I see that after a > successful rewind/unload, the SENSE format should be format > 22 with ERA 52. I have no idea if it should have > INTERVENTION REQUIRED turned on or not. > > <twilight zone theme plays> > > Alan Altmark > z/VM Development > IBM Endicott >
