Testing the patch here in the lab, it seems my firmware will need to be updated to support more than 1 partition.
Looking into that now.
[ 193.647807] st: Version 20160104, fixed bufsize 32768, s/g segs 256
[ 193.648992] st: Debugging enabled debug_flag = 1
[ 193.650907] st 0:0:0:0: Attached scsi tape st0
[ 193.652046] st 0:0:0:0: st0: try direct i/o: yes (alignment 4 B)
[ 280.069260] st 0:0:0:0: [st0] Block limits 1 - 16777215 bytes.
[ 280.070543] st 0:0:0:0: [st0] Mode sense. Length 11, medium 0, WBS 10, BLL 8
[ 280.073068] st 0:0:0:0: [st0] Density 58, tape length: 0, drv buffer: 1
[ 280.073725] st 0:0:0:0: [st0] Block size: 0, buffer size: 4096 (1 blocks).
mt -f /dev/st0 stsetoption can-partitions
[ 676.835972] st 0:0:0:0: [st0] Block limits 1 - 16777215 bytes.
[ 676.837403] st 0:0:0:0: [st0] Mode sense. Length 11, medium 0, WBS 10, BLL 8
[ 676.838404] st 0:0:0:0: [st0] Density 58, tape length: 0, drv buffer: 1
[ 676.838880] st 0:0:0:0: [st0] Block size: 0, buffer size: 4096 (1 blocks).
[ 676.840383] st 0:0:0:0: [st0] Mode 0 options: buffer writes: 1, async writes: 1, read ahead: 1
[ 676.840880] st 0:0:0:0: [st0] can bsr: 1, two FMs: 0, fast mteom: 0, auto lock: 0,
[ 676.842424] st 0:0:0:0: [st0] defs for wr: 0, no block limits: 0, partitions: 1, s2 log: 0
[ 676.842937] st 0:0:0:0: [st0] sysv: 0 nowait: 0 sili: 0 nowait_filemark: 0
[ 676.844524] st 0:0:0:0: [st0] debugging: 1
[ 676.845042] st 0:0:0:0: [st0] Rewinding tape.
mt -f /dev/nst0 mkpartition 1
[ 798.711408] st 0:0:0:0: [st0] Block limits 1 - 16777215 bytes.
[ 798.712799] st 0:0:0:0: [st0] Mode sense. Length 11, medium 0, WBS 10, BLL 8
[ 798.713948] st 0:0:0:0: [st0] Density 58, tape length: 0, drv buffer: 1
[ 798.714504] st 0:0:0:0: [st0] Block size: 0, buffer size: 4096 (1 blocks).
[ 798.716227] st 0:0:0:0: [st0] Loading tape.
[ 798.731230] st 0:0:0:0: [st0] Block limits 1 - 16777215 bytes.
[ 798.732874] st 0:0:0:0: [st0] Mode sense. Length 11, medium 0, WBS 10, BLL 8
[ 798.734269] st 0:0:0:0: [st0] Density 58, tape length: 0, drv buffer: 1
[ 798.734971] st 0:0:0:0: [st0] Block size: 0, buffer size: 4096 (1 blocks).
[ 798.737572] st 0:0:0:0: [st0] Partition page length is 10 bytes.
[ 798.739162] st 0:0:0:0: [st0] PP: max 0, add 0, xdp 0, psum 03, pofmetc 0,rec 03, units 09, sizes: 1541 65535
[ 798.739974] st 0:0:0:0: [st0] MP: 11 08 00 00 18 03 09 00 06 05 ff ff
[ 798.740810] st 0:0:0:0: [st0] psd_cnt 2, max.parts 0, nbr_parts 0
[ 798.744194] st 0:0:0:0: [st0] Formatting tape with two partitions (FDP).
[ 798.745045] st 0:0:0:0: [st0] Sent partition page length is 12 bytes. needs_format: 0
[ 798.747718] st 0:0:0:0: [st0] PP: max 0, add 1, xdp 4, psum 03, pofmetc 0 rec 03, units 00, sizes: 65535 65535
[ 798.748558] st 0:0:0:0: [st0] MP: 11 0a 00 01 98 03 00 00 ff ff ff ff
[ 798.752622] st 0:0:0:0: [st0] Error: 8000002, cmd: 15 10 0 0 18 0
[ 798.753465] st 0:0:0:0: [st0] Sense Key : Illegal Request [current]
[ 798.754289] st 0:0:0:0: [st0] Add. Sense: Invalid field in parameter list
[ 798.757546] st 0:0:0:0: [st0] Partitioning of tape failed.
Laurence Oberman
Principal Software Maintenance Engineer
Red Hat Global Support Services
From: Emmanuel Florac <eflorac@xxxxxxxxxxxxxx>
Date: Mon, Jan 4, 2016 at 6:46 AM
Subject: Re: st driver doesn't seem to grok LTO partitioning
To: Kai Makisara <Kai.Makisara@xxxxxxxxxxx>
Cc: linux-scsi@xxxxxxxxxxxxxxx
Le Mon, 4 Jan 2016 12:22:34 +0200 (EET)
Kai Makisara <Kai.Makisara@xxxxxxxxxxx> écrivait:
> Here is again a new version of the patch. This does load before
> partitioning. The code performing default partitioning (FDP=1) has
> also been slightly modified (two more bits of the original mode page
> retained).
>
> The patch has been tested with my DDS-4 drive.
That works fine for me. I'm going to do some testing with other drives
I have (LTO-3 -- should fail -- and LTO-5).
# modprobe st
Jan 4 12:31:53 shakuhachi kernel: st: Version 20160104, fixed bufsize
32768, s/g segs 256
Jan 4 12:31:53 shakuhachi kernel: st 7:0:0:0: Attached scsi tape st0
Jan 4 12:31:53 shakuhachi kernel: st 7:0:0:0: st0: try direct i/o: yes
(alignment 512 B)
Jan 4 12:31:53 shakuhachi kernel: st 7:0:0:0: st0: Block limits 1 -
16777215 bytes.
Jan 4 12:31:53 shakuhachi kernel: st 7:0:0:0: st0: Mode sense. Length 11,
medium 0, WBS 10, BLL 8
Jan 4 12:31:53 shakuhachi kernel: st 7:0:0:0: st0: Density 5a, tape
length: 0, drv buffer: 1
Jan 4 12:31:53 shakuhachi kernel: st 7:0:0:0: st0: Block size: 0, buffer
size: 4096 (1 blocks).
Jan 4 12:31:53 shakuhachi kernel: st 7:0:0:0: st0: Block limits 1 -
16777215 bytes.
Jan 4 12:31:53 shakuhachi kernel: st 7:0:0:0: st0: Mode sense. Length 11,
medium 0, WBS 10, BLL 8
Jan 4 12:31:53 shakuhachi kernel: st 7:0:0:0: st0: Density 5a, tape
length: 0, drv buffer: 1
Jan 4 12:31:53 shakuhachi kernel: st 7:0:0:0: st0: Block size: 0, buffer
size: 4096 (1 blocks).
# mt -f /dev/st0 stsetoption debug
Jan 4 12:32:04 shakuhachi kernel: st 7:0:0:0: st0: Block limits 1 -
16777215 bytes.
Jan 4 12:32:04 shakuhachi kernel: st 7:0:0:0: st0: Mode sense. Length 11,
medium 0, WBS 10, BLL 8
Jan 4 12:32:04 shakuhachi kernel: st 7:0:0:0: st0: Density 5a, tape
length: 0, drv buffer: 1
Jan 4 12:32:04 shakuhachi kernel: st 7:0:0:0: st0: Block size: 0, buffer
size: 4096 (1 blocks).
Jan 4 12:32:04 shakuhachi kernel: st 7:0:0:0: st0: Mode 0 options: buffer
writes: 1, async writes: 1, read ahead: 1
Jan 4 12:32:04 shakuhachi kernel: st 7:0:0:0: st0: can bsr: 1, two
FMs: 0, fast mteom: 0, auto lock: 0,
Jan 4 12:32:04 shakuhachi kernel: st 7:0:0:0: st0: defs for wr: 0, no
block limits: 0, partitions: 0, s2 log: 0
Jan 4 12:32:04 shakuhachi kernel: st 7:0:0:0: st0: sysv: 0 nowait: 0
sili: 0 nowait_filemark: 0
Jan 4 12:32:04 shakuhachi kernel: st 7:0:0:0: st0: debugging: 1
Jan 4 12:32:04 shakuhachi kernel: st 7:0:0:0: st0: Rewinding tape.
# mt -f /dev/st0 stsetoption can-partitions
Jan 4 12:39:38 shakuhachi kernel: st 7:0:0:0: st0: Block limits 1 -
16777215 bytes.
Jan 4 12:39:38 shakuhachi kernel: st 7:0:0:0: st0: Mode sense. Length 11,
medium 0, WBS 10, BLL 8
Jan 4 12:39:38 shakuhachi kernel: st 7:0:0:0: st0: Density 5a, tape
length: 0, drv buffer: 1
Jan 4 12:39:38 shakuhachi kernel: st 7:0:0:0: st0: Block size: 0, buffer
size: 4096 (1 blocks).
Jan 4 12:39:38 shakuhachi kernel: st 7:0:0:0: st0: Mode 0 options: buffer
writes: 1, async writes: 1, read ahead: 1
Jan 4 12:39:38 shakuhachi kernel: st 7:0:0:0: st0: can bsr: 1, two
FMs: 0, fast mteom: 0, auto lock: 0,
Jan 4 12:39:38 shakuhachi kernel: st 7:0:0:0: st0: defs for wr: 0, no
block limits: 0, partitions: 1, s2 log: 0
Jan 4 12:39:38 shakuhachi kernel: st 7:0:0:0: st0: sysv: 0 nowait: 0
sili: 0 nowait_filemark: 0
Jan 4 12:39:38 shakuhachi kernel: st 7:0:0:0: st0: debugging: 1
Jan 4 12:39:38 shakuhachi kernel: st 7:0:0:0: st0: Rewinding tape.
# mt -f /dev/nst0 mkpartition 1
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: Block limits 1 -
16777215 bytes.
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: Mode sense. Length 11,
medium 0, WBS 10, BLL 8
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: Density 5a, tape
length: 0, drv buffer: 1
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: Block size: 0, buffer
size: 4096 (1 blocks).
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: Updating partition
number in status.
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: Got tape pos. blk 0
part 0.
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: Loading tape.
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: Block limits 1 -
16777215 bytes.
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: Mode sense. Length 11,
medium 0, WBS 10, BLL 8
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: Density 5a, tape
length: 0, drv buffer: 1
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: Block size: 0, buffer
size: 4096 (1 blocks).
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: Partition page length
is 16 bytes.
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: PP: max 3, add 0, xdp
1, psum 03, pofmetc 4, rec 03, units 09, sizes: 2620 0
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: MP: 11 0e 03 00 3c 03
09 00 0a 3c 00 00
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: psd_cnt 2, max.parts 3,
nbr_parts 0
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: Formatting tape with
two partitions (FDP).
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: Sent partition page
length is 12 bytes. needs_format: 1
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: PP: max 3, add 1, xdp
4, psum 03, pofmetc 4, rec 03, units 00, sizes: 65535 0
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: MP: 11 0a 03 01 9c 03
00 00 ff ff 00 00
Jan 4 12:40:01 shakuhachi kernel: st 7:0:0:0: st0: Sending FORMAT MEDIUM
# mt -f /dev/nst0 status
SCSI 2 tape drive:
File number=0, block number=0, partition=0.
Tape block size 0 bytes. Density code 0x5a (no translation).
Soft error count since last status=0
General status bits on (41010000):
BOT ONLINE IM_REP_EN
Jan 4 12:40:28 shakuhachi kernel: st 7:0:0:0: st0: Block limits 1 -
16777215 bytes.
Jan 4 12:40:28 shakuhachi kernel: st 7:0:0:0: st0: Mode sense. Length 11,
medium 0, WBS 10, BLL 8
Jan 4 12:40:28 shakuhachi kernel: st 7:0:0:0: st0: Density 5a, tape
length: 0, drv buffer: 1
Jan 4 12:40:28 shakuhachi kernel: st 7:0:0:0: st0: Block size: 0, buffer
size: 4096 (1 blocks).
# mt -f /dev/nst0 setpartition 1
# mt -f /dev/nst0 status
SCSI 2 tape drive:
File number=0, block number=0, partition=1.
Tape block size 0 bytes. Density code 0x5a (no translation).
Soft error count since last status=0
General status bits on (41010000):
BOT ONLINE IM_REP_EN
# mt -f /dev/nst0 mkpartition 0
Jan 4 12:42:15 shakuhachi kernel: st 7:0:0:0: st0: Block limits 1 -
16777215 bytes.
Jan 4 12:42:15 shakuhachi kernel: st 7:0:0:0: st0: Mode sense. Length 11,
medium 0, WBS 10, BLL 8
Jan 4 12:42:15 shakuhachi kernel: st 7:0:0:0: st0: Density 5a, tape
length: 0, drv buffer: 1
Jan 4 12:42:15 shakuhachi kernel: st 7:0:0:0: st0: Block size: 0, buffer
size: 4096 (1 blocks).
Jan 4 12:42:15 shakuhachi kernel: st 7:0:0:0: st0: Loading tape.
Jan 4 12:42:18 shakuhachi kernel: st 7:0:0:0: st0: Block limits 1 -
16777215 bytes.
Jan 4 12:42:18 shakuhachi kernel: st 7:0:0:0: st0: Mode sense. Length 11,
medium 0, WBS 10, BLL 8
Jan 4 12:42:18 shakuhachi kernel: st 7:0:0:0: st0: Density 5a, tape
length: 0, drv buffer: 1
Jan 4 12:42:18 shakuhachi kernel: st 7:0:0:0: st0: Block size: 0, buffer
size: 4096 (1 blocks).
Jan 4 12:42:18 shakuhachi kernel: st 7:0:0:0: st0: Partition page length
is 16 bytes.
Jan 4 12:42:18 shakuhachi kernel: st 7:0:0:0: st0: PP: max 3, add 1, xdp
1, psum 03, pofmetc 4, rec 03, units 09, sizes: 2543 38
Jan 4 12:42:18 shakuhachi kernel: st 7:0:0:0: st0: MP: 11 0e 03 01 3c 03
09 00 09 ef 00 26
Jan 4 12:42:18 shakuhachi kernel: st 7:0:0:0: st0: Sending FORMAT MEDIUM
# tapeinfo -f /dev/sg6
Product Type: Tape Drive
Vendor ID: 'HP '
Product ID: 'Ultrium 6-SCSI '
Revision: '329U'
Attached Changer API: No
SerialNumber: 'HU1302U4RC'
MinBlock: 1
MaxBlock: 16777215
SCSI ID: 0
SCSI LUN: 0
Ready: yes
BufferedMode: yes
Medium Type: Not Loaded
Density Code: 0x5a
BlockSize: 0
DataCompEnabled: yes
DataCompCapable: yes
DataDeCompEnabled: yes
CompType: 0x1
DeCompType: 0x1
BOP: yes
Block Position: 0
ActivePartition: 0
EarlyWarningSize: 0
NumPartitions: 0
MaxPartitions: 3
--
------------------------------------------------------------------------
Emmanuel Florac | Direction technique
| Intellique
| <eflorac@xxxxxxxxxxxxxx>
| +33 1 78 94 84 02
------------------------------------------------------------------------
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