Greetings,
I administer an Alpha 600/5 running DECUnix 3.2 D. I
have been attempting to do tape backups to an 8mm Exabyte tape drive
system with little success. After tests with two different drives,
any number of SCSI cables, and data grade vs. regular 8mm tapes I
note the following error which occurs regardless of the tested
hardware:
0+1 records in
1+0 records out
dump: Dumping from host griton.math.arizona.edu
dump: Date of this level 0 dump: Fri Jul 4 01:11:13 1997 MST
dump: Date of last level 0 dump: the start of the epoch
dump: Dumping /dev/rrz0b (/home) to /dev/nrmt0a
dump: Mapping (Pass I) [regular files]
dump: Mapping (Pass II) [directories]
dump: Estimate: 337821 tape blocks on 0.16 volume(s)
dump: Dumping (Pass III) [directories]
dump: Volume 1, tape # 0001, begins with blocks from i-node 2
dump: 0.15% done -- finished in 02:13
dump: Dumping (Pass IV) [regular files]
dump: 20.74% done -- finished in 00:19
dump: 41.34% done -- finished in 00:14
dump: 62.06% done -- finished in 00:09
dump: Write error -- wanted to write: 57344, only wrote: -1
slave_work(): write(): I/O error
dump: Write error - /dev/nrmt0a, volume 1, 399 feet -- cannot recover
dump: Cannot fopen /dev/tty for reading
query(): fopen(): No such device or address
dump: Cannot remove shared memory
remove_shared_memory(): shmctl(): Invalid argument
dump: SIGTERM received -- Try rewriting
dump: Unexpected signal -- cannot recover
This occurs when using the standard level 0 dump command,
as can be seen in the error message. The only other piece of
evidence I have is that this seems to occur on data grade tapes
which have been written to previously. Any assistance in solving
this problem will be greatly appreciated.
TIA,
Dave Burnett
Program in Applied Mathematics
University of Arizona
Tucson, AZ 85721
Received on Wed Jul 09 1997 - 01:20:13 NZST