Here is a summary of my problem with an Exabyte EXB-8200 8mm tape
drive.
All who responded pointed out that the, /dev/tty fails, error was due
to there was no tty to write to as the procedure was started via
cron.
Some indicated that I was out of tape which was not true.
The bottom line:
It was a hardware problem and or Sun service replaced the faulty
drive.
My original question:
> I am experiencing a problem with one of our systems doing multiple
dumps to an Exabyte.
>
> ENVIRONMENT:
>
> Sun 4/470 running 4.1.1, 128 Meg of Ram 256 meg of swap.
>
> Server backs up itself and various Sparc2 hosts Using the following
dump parameters
>
> /etc/rdump 0ufs sunset:/dev/nrst0 1200000 /Filesystem
>
> I have the exact same script running every night on a different
server with no problems, in fact, this script has been running on the
troubled server for at least 6 months with no problems until
recently.
>
> Here is the error I am receiving:
>
> Exabyte EXB-8200 8mm tape drive:
> sense key(0x0)= no sense residual= 0 retries= 0
> file no= 0 block no= 0
> backup_all_files: Backing up sunset:/usr/dist2 FILE NUMBER 3
> DUMP: Date of this level 0 dump: Sat May 30 01:03:05 1992
> DUMP: Date of last level 0 dump: the epoch
> DUMP: Dumping /dev/rid002a (/usr/dist2) to /dev/nrst0 on host
sunset
> DUMP: mapping (Pass I) [regular files]
> DUMP: mapping (Pass II) [directories]
> DUMP: estimated 1449820 blocks (707.92MB) on 0.04 tape(s).
> DUMP: /dev/nrst0: I/O error
>
> DUMP: fopen on /dev/tty fails
> DUMP: The ENTIRE dump is aborted.
>
> The system does Dump the first, second and third file system with
no problem and then gives the above error on the fourth as well as
all the rest including the remote hosts.
>
> When I then do a rewind or a status I get the following error
>
> /dev/nrst0: no tape loaded or drive offline
>
> I am not out of tape, the error has happened on any and every tape
I use. I believe the error "DUMP: fopen on /dev/tty fails" may be the
key, however I am not really sure what this implies.
>
>Is it a hardware problem, I have rebooted which has not helped.
Thanks to the following who responded:
Brett Chapman chapmanB@med.ge.com
Brett Lymn blymn@awadi.com.AU
Eckhard.Rueggeberg eckhard@ts.go.dlr.de
--- Jim Ahokas CS First Boston (Japan) Limited Yurakucho Denki Building 7-1 Yurakucho 1-chome, Chiyoda-ku Tokyo 100, JapanDOMAIN: Jim_Ahokas@gun.com UUCP: nobugs!next8!ahokas@uunet.uu.net VOICE: (03)-3213-8854 FAX: (03)-3213-8870
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