a simple question: which one is my tape driver?

[Michael Tully]

Do you have a tape that was used say about 1 month ago?

If so it is possible you can attempt to read it back? If it is not successful can you also try this on another system?
If the second machine reports that tape as being okay, and the first not, arrange to have the tape drive replaced.

[gary_35]

ok,i will replace the tape driver and try it again ,thanks

[Michael Steele_2]

First, use compression for in this case you've run out of room on the tape media and COMPRESSION needs to be used. To use COMPRESSION use: /dev/rmt/c0t3d0BEST.

Then use chsum on a restored file to verify it against the original.

tar -cvf /filesystem /dev/rmt/c0t3d0BEST

DO THIS:

mkdir /tmp/newdir
cd /tmp/newdir
mt -t /dev/rmt/0m rew
tar -xvf /dev/rmt/0mn "usr/bin/b*"

NOTE: " Omn " NO REWIND
NOTE: " usr..." NO /

THEN cksum /tmp/usr/bin/b*file

-with-

/usr/bin/b*file

They should be identical.