SCSI Reset on DLT8000

[catastro]

Hi to all. I have an issue that I don´t know now where the problem is.
I have a L3000 class server running HP-UX 11iv1 with a TapeArray 5300 connected to it, and with two units. A DDS3 tape that is working just fine and a DLT8000 tape drive that is driving me crazy.
It does work sometimes. I already changed the SCSI card, the TapeArray, cables, terminator and unit. The SCSI id in the back of the array are correctly set.
When I try to run the DLT with tar, it writes, but when I try to extarct, it says Tape I/O error (and the tape is brand new).
I tried the tape with the cables and card of the DDS3 and it worked fine.
I think it can be caused because of the PCI bus the SCSI card is in, isn´t it? How could I see if the SCSI Bus is sending resets?
By the way, the DLT drive appears now in the ioscan as NO_HW.
Thanks to all

[Luk Vandenbussche]

NO_HW => Not OK

Is the DLT direct connected to a PCI a card? Or is it a daisy-chain with a DDS3

The best is a direct connection.

You have replaced everything, but did you replace also the DLT once?

[catastro]

The DLT is directly connected to the PCI card, and yes, I replaced the drive already twice and still fails sometimes.

[Luk Vandenbussche · Accepted solution]

Have you installed the latest stape cumulative patch?

=> PHKL_34552

[catastro]

Yes, I already installed it when it first happened to me all this. When I try to use the DLT tape drive, there are messages appearing in the syslog file:

Aug 24 13:25:43 ensnada2 vmunix: SCSI: Unhandled illegal instruction -- lbolt: 1
0144277, dev: cd090000
Aug 24 13:25:43 ensnada2 vmunix: lbp->state: 30008
Aug 24 13:25:43 ensnada2 vmunix: lbp->offset: ffffffff
Aug 24 13:25:43 ensnada2 vmunix: lbp->nominalOffset: 270
Aug 24 13:25:43 ensnada2 vmunix: lbp->Cmdindex: 7
Aug 24 13:25:43 ensnada2 vmunix: lbp->last_nexus_index: 45
Aug 24 13:25:43 ensnada2 vmunix: lbp->nexus_index: 46
Aug 24 13:25:43 ensnada2 vmunix: uCmdSent: 70059c0 uNexus_offset:
105718
Aug 24 13:25:43 ensnada2 vmunix: last lbp->puStatus [0000000068b456f8]:
Aug 24 13:25:43 ensnada2 vmunix: 00031000 00031000 00031000 00031
000
Aug 24 13:25:43 ensnada2 vmunix: next lbp->puStatus [0000000068b45708]:
Aug 24 13:25:43 ensnada2 vmunix: From most recent interrupt:
Aug 24 13:25:43 ensnada2 vmunix: ISTAT: 09, SIST0: 00, SIST1: 00,
DSTAT: 81, DSPS: 00000000
Aug 24 13:25:43 ensnada2 vmunix: lsp: 0x0000000073667e00
Aug 24 13:25:43 ensnada2 vmunix: 00031000 00031000 00031000 00031
000
Aug 24 13:25:43 ensnada2 vmunix: bp->b_dev: cd090000
Aug 24 13:25:43 ensnada2 vmunix: scb->io_id: 9000c1d
Aug 24 13:25:43 ensnada2 vmunix: scb->cdb: 08 00 00 28 00 00
Aug 24 13:25:43 ensnada2 vmunix: lbolt_at_timeout: 0, lbolt_at_st
art: 0
Aug 24 13:25:43 ensnada2 vmunix: lsp->state: 4005
Aug 24 13:25:43 ensnada2 vmunix: Jump Table entry [0000000068b40000]: ff0
11000 00101100
Aug 24 13:25:43 ensnada2 vmunix: lsp->puScript [0000000068b41000]:
Aug 24 13:25:43 ensnada2 vmunix: 09000030 002b8b80 00000000 09000
840
Aug 24 13:25:43 ensnada2 vmunix: 294977c0 0000af01 09001000 f3420
000
Aug 24 13:25:43 ensnada2 vmunix: DSAtbl->host_iocb_index: 7
Aug 24 13:25:43 ensnada2 vmunix: DSAtbl->host_iocb_addr: 1059c0
Aug 24 13:25:43 ensnada2 vmunix: stored scratcha: 0xff031000
Aug 24 13:25:43 ensnada2 vmunix: scratch_lsp: 0x0000000073667e00
Aug 24 13:25:43 ensnada2 vmunix: c8xx_iocb [ffffffff87fdeb00]:
Aug 24 13:25:43 ensnada2 vmunix: 070059c0 ff001000 00101100 5f000
f00
Aug 24 13:25:43 ensnada2 vmunix: 00000001 001059a0 00000006 00105
9a8
Aug 24 13:25:43 ensnada2 vmunix: c8xx_virt(DSP) is NULL
Aug 24 13:26:07 ensnada2 vmunix:
Aug 24 13:26:07 ensnada2 vmunix: SCSI: Unhandled illegal instruction -- lbolt: 1
0146698, dev: cd090000
Aug 24 13:26:07 ensnada2 vmunix: lbp->state: 30008
Aug 24 13:26:07 ensnada2 vmunix: lbp->offset: ffffffff
Aug 24 13:26:07 ensnada2 vmunix: lbp->nominalOffset: 270
Aug 24 13:26:07 ensnada2 vmunix: lbp->Cmdindex: c
Aug 24 13:26:07 ensnada2 vmunix: lbp->last_nexus_index: a
Aug 24 13:26:07 ensnada2 vmunix: lbp->nexus_index: b
Aug 24 13:26:07 ensnada2 vmunix: uCmdSent: c005b00 uNexus_offset:
10562c
Aug 24 13:26:07 ensnada2 vmunix: last lbp->puStatus [0000000068b4560c]:
Aug 24 13:26:07 ensnada2 vmunix: 00031000 00031000 00031000 00031
000
Aug 24 13:26:07 ensnada2 vmunix: next lbp->puStatus [0000000068b4561c]:
Aug 24 13:26:07 ensnada2 vmunix: From most recent interrupt:
Aug 24 13:26:07 ensnada2 vmunix: ISTAT: 09, SIST0: 00, SIST1: 00,
DSTAT: 81, DSPS: 00000000
Aug 24 13:26:07 ensnada2 vmunix: lsp: 0x00000000719acc00
Aug 24 13:26:07 ensnada2 vmunix: 00031000 00031000 00031000 00031
000
Aug 24 13:26:07 ensnada2 vmunix: bp->b_dev: cd090000
Aug 24 13:26:07 ensnada2 vmunix: scb->io_id: 9000d2b
Aug 24 13:26:07 ensnada2 vmunix: scb->cdb: 08 00 00 28 00 00
Aug 24 13:26:07 ensnada2 vmunix: lbolt_at_timeout: 0, lbolt_at_st
art: 0
Aug 24 13:26:07 ensnada2 vmunix: lsp->state: 4005
Aug 24 13:26:07 ensnada2 vmunix: Jump Table entry [0000000068b40000]: ff0
11000 00101100
Aug 24 13:26:07 ensnada2 vmunix: lsp->puScript [0000000068b41000]:
Aug 24 13:26:07 ensnada2 vmunix: 09000030 00268380 00000000 09000
840
Aug 24 13:26:07 ensnada2 vmunix: 359a77c0 00009081 09001000 369e8
000
Aug 24 13:26:07 ensnada2 vmunix: DSAtbl->host_iocb_index: c
Aug 24 13:26:07 ensnada2 vmunix: DSAtbl->host_iocb_addr: 105b00
Aug 24 13:26:07 ensnada2 vmunix: stored scratcha: 0xff031000
Aug 24 13:26:07 ensnada2 vmunix: scratch_lsp: 0x00000000719acc00
Aug 24 13:26:07 ensnada2 vmunix: c8xx_iocb [ffffffff87fdeb00]:
Aug 24 13:26:07 ensnada2 vmunix: 0c005b00 ff001000 00101100 5f000
f00
Aug 24 13:26:07 ensnada2 vmunix: 00000001 00105ae0 00000006 00105
ae8
Aug 24 13:26:07 ensnada2 vmunix: c8xx_virt(DSP) is NULL
Aug 24 13:26:07 ensnada2 vmunix:
Aug 24 13:26:07 ensnada2 vmunix: SCSI: Unhandled illegal instruction -- lbolt: 1
0146699, dev: cd090000
Aug 24 13:26:07 ensnada2 vmunix: lbp->state: 30008
Aug 24 13:26:07 ensnada2 vmunix: lbp->offset: ffffffff
Aug 24 13:26:07 ensnada2 vmunix: lbp->nominalOffset: 450
Aug 24 13:26:07 ensnada2 vmunix: lbp->Cmdindex: d
Aug 24 13:26:07 ensnada2 vmunix: lbp->last_nexus_index: a
Aug 24 13:26:07 ensnada2 vmunix: lbp->nexus_index: b
Aug 24 13:26:07 ensnada2 vmunix: uCmdSent: d005b40 uNexus_offset:
10562c
Aug 24 13:26:07 ensnada2 vmunix: last lbp->puStatus [0000000068b4560c]:
Aug 24 13:26:07 ensnada2 vmunix: 00031000 00031000 00031000 00031
000
Aug 24 13:26:07 ensnada2 vmunix: next lbp->puStatus [0000000068b4561c]:
Aug 24 13:26:07 ensnada2 vmunix: From most recent interrupt:
Aug 24 13:26:07 ensnada2 vmunix: ISTAT: 09, SIST0: 00, SIST1: 00,
DSTAT: 81, DSPS: 00000000
Aug 24 13:26:07 ensnada2 vmunix: lsp: 0x00000000646af3c8
Aug 24 13:26:07 ensnada2 vmunix: 00031000 00031000 00031000 00031
000
Aug 24 13:26:07 ensnada2 vmunix: bp->b_dev: cd090000
Aug 24 13:26:07 ensnada2 vmunix: scb->io_id: 9000d2c
Aug 24 13:26:07 ensnada2 vmunix: scb->cdb: 12 00 00 00 24 00
Aug 24 13:26:07 ensnada2 vmunix: lbolt_at_timeout: 0, lbolt_at_st
art: 0
Aug 24 13:26:07 ensnada2 vmunix: lsp->state: 4005
Aug 24 13:26:07 ensnada2 vmunix: Jump Table entry [0000000068b40000]: 000
01000 87fde288
Aug 24 13:26:07 ensnada2 vmunix: lsp->puScript [0000000068b41000]:
Aug 24 13:26:07 ensnada2 vmunix: 09000024 00330b80 00000000 78370
000
Aug 24 13:26:07 ensnada2 vmunix: 00000000 80080000 87fde288 369e8
000
Aug 24 13:26:07 ensnada2 vmunix: DSAtbl->host_iocb_index: d
Aug 24 13:26:07 ensnada2 vmunix: DSAtbl->host_iocb_addr: 105b40
Aug 24 13:26:07 ensnada2 vmunix: stored scratcha: 0xff031000
Aug 24 13:26:07 ensnada2 vmunix: scratch_lsp: 0x00000000646af3c8
Aug 24 13:26:07 ensnada2 vmunix: c8xx_iocb [ffffffff87fdeb00]:
Aug 24 13:26:07 ensnada2 vmunix: 0d005b40 ff007000 00101100 77000
000
Aug 24 13:26:07 ensnada2 vmunix: 00000005 00105b20 00000006 00105
b28
Aug 24 13:26:07 ensnada2 vmunix: c8xx_virt(DSP) is NULL
Aug 24 13:26:07 ensnada2 vmunix: SCSI: Ultra160 Controller at 0/3/0/0: Error: Th
e domain validation test for target 0 determined that communication may not be p
ossible to this target. Verify the hardware configuration.
Aug 24 13:27:06 ensnada2 vmunix:
Aug 24 13:27:06 ensnada2 vmunix: SCSI: Unhandled illegal instruction -- lbolt: 1
0152565, dev: cd090000
Aug 24 13:27:06 ensnada2 vmunix: lbp->state: 30008
Aug 24 13:26:07 ensnada2 vmunix: SCSI: Ultra160 Controller at 0/3/0/0: Error: Th
e domain validation test for target 0 determined that communication may not be p
ossible to this target. Verify the hardware configuration.
Aug 24 13:27:06 ensnada2 vmunix: lbp->offset: ffffffff
Aug 24 13:27:06 ensnada2 vmunix: lbp->nominalOffset: 270
Aug 24 13:27:06 ensnada2 vmunix: lbp->Cmdindex: d
Aug 24 13:27:06 ensnada2 vmunix: lbp->last_nexus_index: b
Aug 24 13:27:06 ensnada2 vmunix: lbp->nexus_index: c
Aug 24 13:27:06 ensnada2 vmunix: uCmdSent: d005b40 uNexus_offset:
105630
Aug 24 13:27:06 ensnada2 vmunix: last lbp->puStatus [0000000068b45610]:
Aug 24 13:27:06 ensnada2 vmunix: 00031000 00031000 00031000 00031
000
Aug 24 13:27:06 ensnada2 vmunix: next lbp->puStatus [0000000068b45620]:
Aug 24 13:27:06 ensnada2 vmunix: From most recent interrupt:
Aug 24 13:27:06 ensnada2 vmunix: ISTAT: 09, SIST0: 00, SIST1: 00,
DSTAT: 81, DSPS: 00000000
Aug 24 13:27:06 ensnada2 vmunix: lsp: 0x0000000073667e00
Aug 24 13:27:06 ensnada2 vmunix: 00031000 00031000 00031000 00031
000
Aug 24 13:27:06 ensnada2 vmunix: bp->b_dev: cd090000
Aug 24 13:27:06 ensnada2 vmunix: scb->io_id: 9000e3a
Aug 24 13:27:06 ensnada2 vmunix: scb->cdb: 08 00 00 28 00 00
Aug 24 13:27:06 ensnada2 vmunix: lbolt_at_timeout: 0, lbolt_at_st
art: 0
Aug 24 13:27:06 ensnada2 vmunix: lsp->state: 4005
Aug 24 13:27:06 ensnada2 vmunix: Jump Table entry [0000000068b40000]: ff0
11000 00101100
Aug 24 13:27:06 ensnada2 vmunix: lsp->puScript [0000000068b41000]:
Aug 24 13:27:06 ensnada2 vmunix: 09000030 00260180 00000000 09000
840
Aug 24 13:27:06 ensnada2 vmunix: bee2b7c0 00009802 09001000 b70e0
000
Aug 24 13:27:06 ensnada2 vmunix: DSAtbl->host_iocb_index: d
Aug 24 13:27:06 ensnada2 vmunix: DSAtbl->host_iocb_addr: 105b40
Aug 24 13:27:06 ensnada2 vmunix: stored scratcha: 0xff031000
Aug 24 13:27:06 ensnada2 vmunix: scratch_lsp: 0x0000000073667e00
Aug 24 13:27:06 ensnada2 vmunix: c8xx_iocb [ffffffff87fdeb00]:
Aug 24 13:27:06 ensnada2 vmunix: 0d005b40 ff001000 00101100 77000
000
Aug 24 13:27:06 ensnada2 vmunix: 00000001 00105b20 00000006 00105
b28
Aug 24 13:27:06 ensnada2 vmunix: c8xx_virt(DSP) is NULL
Aug 24 13:31:21 ensnada2 sshd[8072]: Rhosts authentication refused for rootsc: b
ad ownership or modes for home directory.
Aug 24 13:31:21 ensnada2 sshd[8072]: Accepted keyboard-interactive/pam for roots
c from 10.57.224.72 port 56677 ssh2
Aug 24 13:32:15 ensnada2 vmunix:
Aug 24 13:32:15 ensnada2 vmunix: SCSI: Unhandled illegal instruction -- lbolt: 1
0183513, dev: cd090000
Aug 24 13:31:21 ensnada2 sshd[8072]: Rhosts authentication refused for rootsc: b
ad ownership or modes for home directory.
Aug 24 13:32:15 ensnada2 vmunix: lbp->state: 30008
Aug 24 13:32:15 ensnada2 vmunix: lbp->offset: ffffffff
Aug 24 13:32:15 ensnada2 vmunix: lbp->nominalOffset: 270
Aug 24 13:32:15 ensnada2 vmunix: lbp->Cmdindex: 17
Aug 24 13:32:15 ensnada2 vmunix: lbp->last_nexus_index: 15
Aug 24 13:32:15 ensnada2 vmunix: lbp->nexus_index: 16
Aug 24 13:32:15 ensnada2 vmunix: uCmdSent: 17005dc0 uNexus_offset
: 105658
Aug 24 13:32:15 ensnada2 vmunix: last lbp->puStatus [0000000068b45638]:
Aug 24 13:32:15 ensnada2 vmunix: 00031000 00031000 00031000 00031
000
Aug 24 13:32:15 ensnada2 vmunix: next lbp->puStatus [0000000068b45648]:
Aug 24 13:32:15 ensnada2 vmunix: From most recent interrupt:
Aug 24 13:32:15 ensnada2 vmunix: ISTAT: 09, SIST0: 00, SIST1: 00,
DSTAT: 81, DSPS: 00000000
Aug 24 13:32:15 ensnada2 vmunix: lsp: 0x0000000071a13800
Aug 24 13:32:15 ensnada2 vmunix: 00031000 00031000 00031000 00031
000
Aug 24 13:32:15 ensnada2 vmunix: bp->b_dev: cd090000
Aug 24 13:32:15 ensnada2 vmunix: scb->io_id: 9001516
Aug 24 13:32:15 ensnada2 vmunix: scb->cdb: 08 00 00 28 00 00
Aug 24 13:32:15 ensnada2 vmunix: lbolt_at_timeout: 0, lbolt_at_st
art: 0
Aug 24 13:32:15 ensnada2 vmunix: lsp->state: 4005
Aug 24 13:32:15 ensnada2 vmunix: Jump Table entry [0000000068b40000]: ff0
11000 00101100
Aug 24 13:32:15 ensnada2 vmunix: lsp->puScript [0000000068b41000]:
Aug 24 13:32:15 ensnada2 vmunix: 09000030 00298b80 00000000 09000
840
Aug 24 13:32:15 ensnada2 vmunix: f607f7c0 0000b782 09001000 f1ea8
000
Aug 24 13:32:15 ensnada2 vmunix: DSAtbl->host_iocb_index: 17
Aug 24 13:32:15 ensnada2 vmunix: DSAtbl->host_iocb_addr: 105dc0
Aug 24 13:32:15 ensnada2 vmunix: stored scratcha: 0xff031000
Aug 24 13:32:15 ensnada2 vmunix: scratch_lsp: 0x0000000071a13800
Aug 24 13:32:15 ensnada2 vmunix: c8xx_iocb [ffffffff87fdeb00]:
Aug 24 13:32:15 ensnada2 vmunix: 17005dc0 ff001000 00101100 5f000
f00
Aug 24 13:32:15 ensnada2 vmunix: 00000001 00105da0 00000006 00105
da8
Aug 24 13:32:15 ensnada2 vmunix: c8xx_virt(DSP) is NULL

And as I said before, when I put the dirve in the SCSI attached to the DDS drive (I disconnected the DDS tape in order to do this), I started the LTT drive test, and told me everything was fine and tries a tar and everything worked fine also.
Any ideas?

[Arend Lensen]

Please get an LTT support ticket and post it here...

[tkc]

hi catastro, I suspect there could be an issue with the Tape Array 5300 backplane, since you have replaced the DLT8000 drive twice. If you do not have part for the tape array 5300, try swapping the position of the dds drive and the dlt8000 drive. remember to swap the scsi cable as well and set the scsi id accordingly at the rear of the tape array 5300.

[catastro]

Hi. I already swapped the positions of the DLT and DDS drive in the TapeArray and seemed to work fine, but some time after that, again with the same issue. I changed the TapeArray at least twice as well, the SCSI card once and the cable and terminator as well.
The LTT assesment test told me everything was working just fine, with no problems at all.
I am going to change the SCSI PCI slot to keep looking for a solution.

[catastro]

Hi again. I chenged the PCI slot where the SCSI card was, and now the DLT drive appears as claimed, but still giving me errors.
I tried to do a tar on a tape, and it tells copies to the tape correctly, but I can not list all the contents or extract them. It says me this:

Tar: tape error (5)

And in the syslog file appears this lines, and I am not sure if them are pointing to the SCSI card.

Aug 28 09:24:29 ensnada2 vmunix: SCSI: Ultra160 Controller at 0/5/0/0: Error: Th
e domain validation test for target 0 determined that communication may not be p
ossible to this target. Verify the hardware configuration.
Aug 28 09:27:22 ensnada2 vmunix:
Aug 28 09:27:22 ensnada2 vmunix: SCSI: Unhandled illegal instruction -- lbolt: 8
0622, dev: cd170040
Aug 28 09:27:22 ensnada2 vmunix: lbp->state: 30008

Here is the ioscan output:

Class I H/W Path Driver S/W State H/W Type Description
=====================================================================
tape 3 0/5/0/0.0.0 stape CLAIMED DEVICE QUANTUM DLT8000
/dev/rmt/3m /dev/rmt/c23t0d0BEST
/dev/rmt/3mb /dev/rmt/c23t0d0BESTb
/dev/rmt/3mn /dev/rmt/c23t0d0BESTn
/dev/rmt/3mnb /dev/rmt/c23t0d0BESTnb

[tkc]

can you verify if the system is applied with the following patch ?

PHKL_34552 : s700_800 11.11 SCSI Tape (stape) cumulative