nst0': Invalid argument¶

Labels: support / question, special hardware or VM

Is this a blocksize issue?

Debian12,
rear installed from Debian repository.
Relax-and-Recover 2.7 / Git.
New Lenovo Server with Ultrium9 SAS drive.

I'm new to rear with tape storage.

I am trying to backup to my new tape drive and getting the error above.

I looked at dmesg and saw

st 1:0:0:0: [st0] Write not multiple of tape block size.

a few times.

Makes me think there's a "mismatch" between whatever block size rear is trying to use vs what my tape drive wants.

I can't seem to find the answer or if I'm on the right track.

@DebianGuru
in usr/share/rear/conf/default.conf there is

# Tape block size, default is to leave it up to the tape-device:
TAPE_BLOCKSIZE=

Perhaps setting this appropriately helps?

[Export of Github issue for rear/rear.]

#3451 Issue open: SAS Ultrium9 tape drive: dd: error writing '/dev/nst0': Invalid argument¶