Hy,
Dec 8 00:48:30 bunch tgtd: tape_rdwr_request(533) capacity over:
2818600256 2818572288
Yeah, looks like you hit the maximum size that you specified when you
created the image file with tgtimg.
This is the first thing I have checked.
I created the tape image file with:
sudo tgtimg --op=new \
--device-type=tape \
--type=data \
--size=400000 \
--barcode="A00000001" \
--file=/media/tgt/vtl/A00000001
I loaded the tape with:
sudo tgtadm --lld iscsi \
--mode logicalunit \
--op update \
--tid 1 \
--lun 4 \
--params
element_type=2,address=1000,barcode=A00000001,sides=1
And I have checked that the image was of the right max size:
sudo tgtimg --op show --device-type tape --file /media/tgt/vtl/A00000001
Media : A00000001
type : Data
Media serial number : A00000001_1323336503, created Thu Dec 8 10:28:23 2011
Beginning of Tape(16): Capacity 400000 MB, Blk No.: 0, prev 0, curr 0,
next 1152
End of Data(32): Blk No. 1, prev 0, curr 1152, next 1152, sz 0
The pastebin of all commands and results is at http://pastebin.com/Vckx3gB3
On the client, after logging in to the target, I checked that the
changer is operable:
$ sudo mtx -f /dev/sg8 status
Storage Changer /dev/sg8:1 Drives, 24 Slots ( 0 Import/Export )
Data Transfer Element 0:Empty
Storage Element 1:Full :VolumeTag=A00000001
Storage Element 2:Empty:VolumeTag=
...
I loaded the tape:
$ sudo mtx -f /dev/sg8 load 1
Loading media from Storage Element 1 into drive 0...done
Checked again:
$ sudo mtx -f /dev/sg8 status
Storage Changer /dev/sg8:1 Drives, 24 Slots ( 0 Import/Export )
Data Transfer Element 0:Full (Storage Element 1 Loaded):VolumeTag =
A00000001
Storage Element 1:Empty:VolumeTag=
Storage Element 2:Empty:VolumeTag=
After I checked the tape drive with mt:
$ sudo mt -f /dev/st0 status
SCSI 2 tape drive:
File number=0, block number=0, partition=0.
Tape block size 0 bytes. Density code 0x0 (default).
Soft error count since last status=0
General status bits on (41010000):
BOT ONLINE IM_REP_EN
And finally I launched the tar of 14Gb of files:
$ sudo tar cvf /dev/st0 .
./
.....
tar: /dev/st0: Cannot write: No space left on device
tar: Error is not recoverable: exiting now
The image file is of this size:
$ ls -al /media/tgt/vtl/A00000001
-rw-r----- 1 root root 2818573744 Dec 8 11:10 /media/tgt/vtl/A00000001
And the error in syslog is
$ sudo less /var/log/syslog
Dec 8 11:10:31 bunch tgtd: tape_rdwr_request(533) capacity over:
2818573648 2818572288
Dec 8 11:10:31 bunch tgtd: tape_rdwr_request(609) io error 0x9a01cb8 a
10240 10240 0, Success
The full pastebin is at http://pastebin.com/VriTKptc
Where is the error ?
--
Gabriele
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