ultrium 960 end-of-tape msg

[Oleg Mercader-Kashin]

I've just install a Ultrium 960 external drive but can't write any but only tape label with labeit command. All other way to write get the error msg: CANT WRITE ON TAPE, END-OF-TAPE:
-----------------------------
# cat /tmp/print_manifest.out > /dev/rmt/1mn
I/O error
cat: Cannot write to output.
-----------------------------
# mt rew
# dd if=/tmp of=/dev/rmt/1mn
I/O error
1+0 records in
0+1 records out
-----------------------------
# mt rew
# vxdump -0Buf 800g /dev/rmt/1mn /tmp
vxdump: Date of this level 0 dump: Mon Oct 9 13:41:15 2006
vxdump: Date of last level 0 dump: the epoch
vxdump: Dumping /dev/vg00/rlvol4 to /dev/rmt/1mn
vxdump: mapping (Pass I) [regular files]
vxdump: mapping (Pass II) [directories]
vxdump: estimated 17836 blocks (8.71MB) on 0.00 tape(s).
vxdump: dumping (Pass III) [directories]
vxdump: dumping (Pass IV) [regular files]
vxdump: End of tape detected
vxdump: Closing /dev/rmt/1mn
vxdump: Change Volumes: Mount volume #2
vxdump: Is the new volume mounted and ready to go?: ("yes" or "no") yes
vxdump: Volume 2 begins with blocks from inode 0
vxdump: EOT detected at start of the tape!
vxdump: The ENTIRE dump is aborted.
#
------------------------------

I have HP-UX 11.0,
May be I have to install some patches?

Some idea?
--
Oleg Mercader

[Luk Vandenbussche]

Oleg,

It is always advisable to install the latest HWEnablement patch bundle in case of this type of problems.

[Peter Godron]

Oleg,
have you got the right combination of tape and density setting?

[o.mercader]

1. I have installed the last bundler HWE 1100(B.11.00.0403.3)

2. vxdump -0Buf 800g /dev/rmt/1mn /tmp
but doesn't matter, the raw

# cat /tmp/print_manifest.out > /dev/rmt/1mn

used to work perfectly :-(

[Oleg Mercader-Kashin]

OK, seems you are right refering params. For instance, I tryed:
# dd if=/tmp/print_manifest.out of=/dev/rmt/1m bs=64k
I/O error
0+1 records in
0+1 records out

but seems tha can write correctly only the first buffer...

What params I have to use? For Ultrium 230 I used to vxdump with:

$ vxdump 0bdsuf 64 81633 220000 $TAPE $fs

HELP!!!

[Oleg Mercader-Kashin]

I've just attached also vxdump output.
:-( Seems like this is the buffer size (?) problem but a 1024k is a max???

[Oleg Mercader-Kashin]

Thx a lot to all.
Yours silence pushes me to think that I leaved something important :-) !
Tomorrow morning I'll install a PHCO_33201 patch that seems will resolve my problem.

[Oleg Mercader-Kashin]

The origin of this problem was an old DVD unit as the next device in the SCSI bus . After desconnected it from the bus my new Ultrium 960 work right.

Thx to all.

[Oleg Mercader-Kashin]

I near not use the DVD unit so I desconnected it from the SCSI for a moment.
--
Oleg Mercader