From: Smith, Mike R. (smithmr@bowater.com)
Date: Tue Dec 17 2002 - 13:39:18 EST
Apparently my tape drive hopped from tape0 to tape1. The /dev/ntape/tape0 files were still there. I was able to see that it had moved from sysman -menu hardware which showed me a tape device of tape1. I used the following couple of commands
# hwmgr -show scsi - show the scsi devices, similar to sysman -menu hardware
# dsfmgr -e tape0 tape1 - exchange the device special files for the named nodes
I then ran my test backup to tape0 and it worked like a champ. Thanks to
Thomas Blinn, Darryl Cook, Michael Acklin, James Eiler, Johnathon Williams and Keith Texel for good suggestions. James Eiler got it exactly.
Original email below
Last week we had a couple problems with backups and we had the tape drive replaced on our Alphaserver 800 running Tru64 5.1 pk3. It ran fine for a couple of days then last night I got the following.
vdump: can't open dev </dev/ntape/tape0>; [6] No such device or address
vdump: can't open dev </dev/ntape/tape0>; [6] No such device or address
vdump: can't open dev </dev/ntape/tape0>; [6] No such device or address
vdump: can't open dev </dev/ntape/tape0>; [6] No such device or address
/var/adm/messages looks clean and I do not show anything in the event viewer. I tried another tape and tested this morning and I got the same message. For some reason, I can't search the archive at this time. This is probably some little simple thing but I am close to vacation and cognitive processing has slowed.
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