5712 sits on #0595 connect to 3580-L33 tape drive. It is running fine when I
just do savlib or savobj, but it fails with savsys. It happened to a few
setup in my customer sites.

IBM has come down many times to replace the #5712, 3580-L33, SCSI cable and
terminator. They even apply the whatever PTF, but still got the intermittent
problem. I am sure that the hardware are in good conditions, cos' I try to
put into different machine and they are working fine.

Any idea?