SCSI: Unexpected Disconnect -- lbolt: 1958232001, dev: cb033002

[Mirror breaking]

Hi Friends,
Well yesterday I was getting some information through SAM,then I got these messages in syslog.
Please tell me whats the error it is showing me.
Jun 18 12:32:35 bwapoqas vmunix:
Jun 18 12:32:35 bwapoqas vmunix: SCSI: Unexpected Disconnect -- lbolt: 1958232001, dev: cb033002, io_id: 3000daa
Jun 18 12:32:35 bwapoqas vmunix: SCSI: Unexpected Disconnect -- lbolt: 1958232031, dev: cb033002, io_id: 3000daa
Jun 18 12:32:35 bwapoqas vmunix: SCSI: Unexpected Disconnect -- lbolt: 1958232060, dev: cb033002, io_id: 3000daa
Jun 18 12:32:37 bwapoqas vmunix: SCSI: Unexpected Disconnect -- lbolt: 1958232090, dev: cb033002, io_id: 3000daa
Jun 18 12:32:37 bwapoqas vmunix: SCSI: Unexpected Disconnect -- lbolt: 1958232119, dev: cb033002, io_id: 3000daa
Jun 18 12:32:37 bwapoqas vmunix: SCSI: Unexpected Disconnect -- lbolt: 1958232149, dev: cb033002, io_id: 3000daa
Jun 18 12:32:41 bwapoqas vmunix: SCSI: Unexpected Disconnect -- lbolt: 1958232643, dev: cb033002, io_id: 3000db9
Jun 18 12:32:41 bwapoqas vmunix: SCSI: Unexpected Disconnect -- lbolt: 1958232672, dev: cb033002, io_id: 3000db9
Jun 18 12:32:42 bwapoqas vmunix: SCSI: Unexpected Disconnect -- lbolt: 1958232702, dev: cb033002, io_id: 3000db9
Jun 18 12:32:44 bwapoqas vmunix: SCSI: Unexpected Disconnect -- lbolt: 1958232731, dev: cb033002, io_id: 3000db9
Jun 18 12:32:44 bwapoqas vmunix: SCSI: Unexpected Disconnect -- lbolt: 1958232761, dev: cb033002, io_id: 3000db9
Jun 18 12:32:44 bwapoqas vmunix: SCSI: Unexpected Disconnect -- lbolt: 1958232790, dev: cb033002, io_id: 3000db9
Jun 18 12:32:47 bwapoqas vmunix: SCSI: Unexpected Disconnect -- lbolt: 1958233247, dev: cb033002, io_id: 3000dc8
Jun 18 12:32:47 bwapoqas vmunix: SCSI: Unexpected Disconnect -- lbolt: 1958233277, dev: cb033002, io_id: 3000dc8
Jun 18 12:32:48 bwapoqas vmunix: SCSI: Unexpected Disconnect -- lbolt: 1958233306, dev: cb033002, io_id: 3000dc8
Jun 18 12:32:49 bwapoqas vmunix: SCSI: Unexpected Disconnect -- lbolt: 1958233336, dev: cb033002, io_id: 3000dc8
Jun 18 12:32:50 bwapoqas vmunix: SCSI: isrEscape Controller at 0/0/8/1/0/1/0.
Jun 18 12:32:50 bwapoqas vmunix: SCSI: First party detected bus hang (HTH) -- lbolt: 1958233598, dev: cb033002
Jun 18 12:32:50 bwapoqas vmunix: lbp->state: 30008
Jun 18 12:32:50 bwapoqas vmunix: lbp->offset: ffffffff
Jun 18 12:32:50 bwapoqas vmunix:
Jun 18 12:32:51 bwapoqas above message repeats 16 times
Jun 18 12:32:50 bwapoqas vmunix: lbp->nominalOffset: 360
Jun 18 12:32:50 bwapoqas vmunix: lbp->Cmdindex: 8
Jun 18 12:32:50 bwapoqas vmunix: lbp->last_nexus_index: 0
Jun 18 12:32:50 bwapoqas vmunix: lbp->nexus_index: 0
Jun 18 12:32:50 bwapoqas vmunix: uCmdSent: 7000000 uNexus_offset: 0
Jun 18 12:32:50 bwapoqas vmunix: last lbp->puStatus [0000000090ea5600]:
Jun 18 12:32:50 bwapoqas vmunix: 00000000 00000000 00000000 00000000
Jun 18 12:32:50 bwapoqas vmunix: next lbp->puStatus [0000000090ea57f0]:
Jun 18 12:32:50 bwapoqas vmunix: 00031300 00031300 00031300 00031300
Jun 18 12:32:50 bwapoqas vmunix: From most recent interrupt:
Jun 18 12:32:50 bwapoqas vmunix: ISTAT: 0a, SIST0: 40, SIST1: 01, DSTAT: 00, DSPS: 00000000
Jun 18 12:32:50 bwapoqas vmunix: lsp: 0x00000000b5fd8800
Jun 18 12:32:50 bwapoqas vmunix: bp->b_dev: cb033002
Jun 18 12:32:50 bwapoqas vmunix: scb->io_id: 3000dc8
Jun 18 12:32:50 bwapoqas vmunix: scb->cdb: 12 00 00 00 80 00
Jun 18 12:32:50 bwapoqas vmunix: lbolt_at_timeout: 0, lbolt_at_start: 0
Jun 18 12:32:50 bwapoqas vmunix: lsp->state: 5
Jun 18 12:32:50 bwapoqas vmunix: Jump Table entry [0000000090ea0300]: 00001300 c0010288
Jun 18 12:32:50 bwapoqas vmunix: lsp->puScript [0000000090ea1000]:
Jun 18 12:32:50 bwapoqas vmunix: 09000080 327a1a00 00644000 78370000
Jun 18 12:32:50 bwapoqas vmunix: 00000000 80080000 c0010288 00000000
Jun 18 12:32:50 bwapoqas vmunix: DSAtbl->host_iocb_index: 8
Jun 18 12:32:50 bwapoqas vmunix: DSAtbl->host_iocb_addr: 5a00
Jun 18 12:32:50 bwapoqas vmunix: stored scratcha: 0xff077300
Jun 18 12:32:50 bwapoqas vmunix: scratch_lsp: 0x00000000b5fd8800
Jun 18 12:32:50 bwapoqas vmunix: c8xx_iocb [ffffff4000010b00]:
Jun 18 12:32:50 bwapoqas vmunix: 08005a00 ff007300 00001000 b7031000
Jun 18 12:32:50 bwapoqas vmunix: 00000005 000059e0 00000006 000059e8
Jun 18 12:32:50 bwapoqas vmunix: Pre-DSP script dump [ffffff4000010220]:
Jun 18 12:32:50 bwapoqas vmunix: 74358000 00000000 80840000 00000658
Jun 18 12:32:50 bwapoqas vmunix: f1640004 00000008 7a5c0100 00000000
Jun 18 12:32:50 bwapoqas vmunix: Script dump [ffffff4000010240]:
Jun 18 12:32:50 bwapoqas vmunix: 1e000000 00000010 878b0000 000002a8
Jun 18 12:32:50 bwapoqas vmunix: 1a000000 00000018 e27c0004 00006000
Jun 18 12:32:50 bwapoqas vmunix: NCR chip register dump for: 0x400200a
Jun 18 12:32:50 bwapoqas vmunix: 00: SCNTL3: b7 SCNTL2: 80 SCNTL1: 10 SCNTL0: da
Jun 18 12:32:50 bwapoqas vmunix: 04: GPREG: 0a SDID: 03 SXFER: 10 SCID: 47
Jun 18 12:32:50 bwapoqas vmunix: 08: SBCL: 28 SSID: 83 SOCL: 0e SFBR: 00
Jun 18 12:32:50 bwapoqas vmunix: 0c: SSTAT2: 00 SSTAT1: 0e SSTAT0: 00 DSTAT: 00
Jun 18 12:32:50 bwapoqas vmunix: 10: DSA: c0010b00
Jun 18 12:32:50 bwapoqas vmunix: 14: MBOX1: 00 MBOX0: 00 ISTAT1: 00 ISTAT: 08
Jun 18 12:32:50 bwapoqas vmunix: 1c: TEMP: c0010ad0
Jun 18 12:32:50 bwapoqas vmunix: 24: DCMDDBC: 1e000000
Jun 18 12:32:50 bwapoqas vmunix: 28: DNAD: 000059e8
Jun 18 12:32:50 bwapoqas vmunix: 2c: DSP: c0010248
Jun 18 12:32:50 bwapoqas vmunix: 30: DSPS: 000059e0
Jun 18 12:32:50 bwapoqas vmunix: 34: SCRATCHA: ff077300
Jun 18 12:32:50 bwapoqas vmunix: 38: DCNTL: a1 DWT: 00 DIEN: 7f DMODE: 4c
Jun 18 12:32:50 bwapoqas vmunix: 3c: ADDER: c0015c28
Jun 18 12:32:50 bwapoqas vmunix: 40: SIST1: 00 SIST0: 00 SIEN1: 97 SIEN0: 8f
Jun 18 12:32:50 bwapoqas vmunix: 44: GPCNTL: 2f MACNTL: 00 SWIDE: 00 SLPAR: 00
Jun 18 12:32:50 bwapoqas vmunix: 48: RESPID1: 00 RESPID0: 80 STIME1: 00 STIME0: fc
Jun 18 12:32:50 bwapoqas vmunix: 4c: STEST3: 80 STEST2: 00 STEST1: 0c STEST0: 76
Jun 18 12:32:50 bwapoqas vmunix: 50: RESV50: 00 RESV51: c0 SIDL1: 00 SIDL0: 00
Jun 18 12:32:50 bwapoqas vmunix: 54: CCNTL1: 01 CCNTL0: 01 SODL1: 00 SODL0: 01
Jun 18 12:32:50 bwapoqas vmunix: 58: RESV58: 00 RESV59: 00 SBDL1: 00 SBDL0: 01
Jun 18 12:32:50 bwapoqas vmunix: 5c: SCRATCHB: 00030001
Jun 18 12:32:50 bwapoqas vmunix: 60: SCRATCHC: c0ffffff
Jun 18 12:32:50 bwapoqas vmunix: 64: SCRATCHD: 00001000
Jun 18 12:32:50 bwapoqas vmunix: 68: SCRATCHE: c0010c00
Jun 18 12:32:50 bwapoqas vmunix: 6c: SCRATCHF: 00000000
Jun 18 12:32:50 bwapoqas vmunix: 70: SCRATCHG: b7031000
Jun 18 12:32:50 bwapoqas vmunix: 74: SCRATCHH: 00005600
Jun 18 12:32:50 bwapoqas vmunix: 78: SCRATCHI: 0c01b710
Jun 18 12:32:50 bwapoqas vmunix: 7c: SCRATCHJ: 08005a00
Jun 18 12:32:50 bwapoqas vmunix: bc: SCNTL4: 00
Jun 18 12:32:50 bwapoqas vmunix: PCI configuration register dump:
Jun 18 12:32:50 bwapoqas vmunix: Command: 0157
Jun 18 12:32:50 bwapoqas vmunix: Latency Timer: c0
Jun 18 12:32:50 bwapoqas vmunix: Cache Line Size: 20
Jun 18 12:32:51 bwapoqas vmunix:
Jun 18 12:32:51 bwapoqas vmunix: SCSI: Resetting SCSI -- lbolt: 1958233698, bus: 3 path: 0/0/8/1/0/1/0
Jun 18 12:32:51 bwapoqas vmunix: SCSI: Reset detected -- lbolt: 1958233698, bus: 3 path: 0/0/8/1/0/1/0
Jun 18 12:33:45 bwapoqas LVM[22724]: /sbin/lvlnboot -v vg00
Jun 18 12:33:45 bwapoqas LVM[22727]: /sbin/lvlnboot -v vg00
Jun 18 12:32:51 bwapoqas vmunix:
and if I am not wrong then the hardware oath is
0/0/8/1/0/1/0
I have only CDROM connected to this hardware path(CD ROM is external)

Thanks and Regards
Ankit Agrawal

[Steven E. Protter]

Shalom Ankit,

One of two things happened.

1) A disk failed or is about to fail. It will need to be replaced. Have a good Ignite backup done in case its your boot disk.

2) You swapped out a hot swap disk. This message will go away after the next boot and can be ignored.

I think though a disk was disconnected in some way and probably there is a bad one in there.

If your CD-ROM is USB its not supported, stop using it.

SEP

[Mirror breaking]

Hi Steven,
Thanks for reply,
As per my knowledge a externel CD ROm is connected to this SCSI.
I think its hardware path is 0/0/8/1/0/1/0
and there is only one device is connected
the output of IOSCAN shows this

ext_bus 3 0/0/8/1/0/1/0 c8xx CLAIMED INTERFACE SCSI C1010 Ultra160 Wide LVD
target 40 0/0/8/1/0/1/0.3 tgt NO_HW DEVICE
disk 371 0/0/8/1/0/1/0.3.0 sdisk NO_HW DEVICE HP DVD-ROM 305
/dev/dsk/c3t3d0 /dev/rdsk/c3t3d0

Please correct me if I am wrong.
And please suggest me what to do.
Thanks and regards
Ankit Agrawal

[Andrew Rutter]

hi, well it looks like the cdrom drive has reset its self or failed.

I would power the drive off at the button and remove the powercord and wait a minute before powering it back up.

then do a full ioscan to pick it up again.

then you will see if the drive has come back online, at the moment it isnt as its showing no hardware.

keep an eye on it as it could be the interface that hs reset, but more likely to be a bad drive that may need replacing

Andy