9531hend@ucsbuxa.ucsb.edu (Jason B. Hendrix) (10/03/90)
I have a SCSI Exabyte/600MG drive that works like a champ, except for one minor problem. I'm worried that it is a symptom of something evil. I dump each file system from a Sun 3/280 as separate dump commands to the Exabyte all in the same C-shell script. No troubles. However, if I try to start another dump, separated in time from the previous one (i.e. The next day or a few minutes) I get I/O errors all over the place. I can bypass this by rewinding the tape, then advancing it to the end of the written medium with the following commands. (Sun O/S v.4.0.3) mt -f /dev/rst0 status /* I get status and then auto-rewind */ mt -f /dev/nrst0 eom /* The n in nrst0 means no auto-rewind */ I can then start a backup (via dump in a c-shell script) and have everything proceed normal. The dump files put onto the tape are readily accessible with restore, and are countable after the first dumped files on the tape. i.e. First dump has 15 files, after the second there are 30 files on the tape. Something appears to be reset after the rewind and fast forward but I cannot figure out what. If only we had a manual, sigh :-) Any help or queries about specifics to help me understand what is going on would be greatly appreciated. If the answer is more than my own ignorance, I'll post it for everyone's edification. Jason B. Hendrix 9531hend@ucsbuxa.ucsb.edu