Question : mondoarchive not writing to tape

Recently I've found the tape ejected and mondoarchive reporting
 [Main] libmondo-stream.c->insist_on_this_tape_number
It tries about 40 times incrementing the number. The drive is onlne and appears OK
Mondoarchive has been running happily for a year until now.

buffer: cannot open output file: Input/output error
filename: /dev/st0
        [Main] libmondo-stream.c->write_backcatalog_to_tape#1537: I am now writing back catalog to tape
        [Main] libmondo-stream.c->write_backcatalog_to_tape#1549: Writing //mondo.tmp.6ZHGPk/tmpfs/backcatalog/0.afio.bz2
        [Main] libmondo-stream.c->write_file_to_stream_from_file#1694: Writing file '0.afio.bz2' to tape (9216 KB)
        [Main] libmondo-stream.c->write_file_to_stream_from_file#1718: libmondo-stream.c, write_file_to_stream_from_file, 1718: Sigpipe occurred recently. I'll start a new tape.
        [Main] libmondo-stream.c->start_to_write_to_next_tape#1480: New tape requested.
        [Main] libmondo-stream.c->insist_on_this_tape_number#465: Insisting on tape #73
When the tape drive goes quiet, please insert volume 73 in this series.
Waiting while the tape drive settles
Waiting while the tape drive settles
        [Main] libmondo-stream.c->insist_on_this_tape_number#482: I assume user has inserted it. They _say_ they have...
        [Main] libmondo-stream.c->insist_on_this_tape_number#486: OK, I've finished insisting. On with the revelry.
Too many tapes. Man, you need to use nfs!
        [Main] libmondo-stream.c->start_to_write_to_next_tape#1500: Opening OUT to next tape
root is mounted at /dev/mapper/VolGroup-LogVol00

Answer : mondoarchive not writing to tape

1) Did you try with a new tape . old tapes can be troublesome

2) Can you put this on a desktop  test machine ( Xp  etc ) for your testing ?

I hope this helps !