SC10 disk problem

[Yuriy Tsyutsyak_1]

On host get errors in syslog:

Nov 11 10:58:10 ievco1 vmunix: SCSI: First party detected bus hang -- lbolt: 36250550, bus: 5
Nov 11 10:58:10 ievco1 vmunix: lbp->state: 1060
Nov 11 10:58:10 ievco1 vmunix: lbp->offset: 40
Nov 11 10:58:10 ievco1 vmunix: lbp->uPhysScript: fbfef000
Nov 11 10:58:10 ievco1 vmunix: From most recent interrupt:
Nov 11 10:58:10 ievco1 vmunix: ISTAT: 29, SIST0: 00, SIST1: 00, DSTAT: 84, DSPS: 0000000a
Nov 11 10:58:10 ievco1 vmunix: lsp: 0000000000000000
Nov 11 10:58:10 ievco1 vmunix: lbp->owner: 000000004076cd00
Nov 11 10:58:10 ievco1 vmunix: bp->b_dev: cb050000
Nov 11 10:58:10 ievco1 vmunix: scb->io_id: 52a6d75
Nov 11 10:58:10 ievco1 vmunix: scb->cdb: 12 00 00 00 80 00
Nov 11 10:58:10 ievco1 vmunix: lbolt_at_timeout: 36250450, lbolt_at_start: 36249950
Nov 11 10:58:10 ievco1 vmunix: lsp->state: 5
Nov 11 10:58:10 ievco1 vmunix: scratch_lsp: 000000004076cd00
Nov 11 10:58:10 ievco1 vmunix: Pre-DSP script dump [fffffffffbfef020]:
Nov 11 10:58:10 ievco1 vmunix: 00000000 00000000 41000000 fbfef290
Nov 11 10:58:10 ievco1 vmunix: 78340000 0000000a 78351000 00000000
Nov 11 10:58:10 ievco1 vmunix: Script dump [fffffffffbfef040]:
Nov 11 10:58:10 ievco1 vmunix: 0e000005 fbfef540 e0100004 fbfef7f8
Nov 11 10:58:10 ievco1 vmunix: 870b0000 fbfef2d8 98080000 00000005
Nov 11 10:58:11 ievco1 vmunix: SCSI: Resetting SCSI -- lbolt: 36250650, bus: 5
Nov 11 10:58:11 ievco1 vmunix: SCSI: Reset detected -- lbolt: 36250650, bus: 5
Nov 11 11:32:51 ievco1 syslog: drpd(0,2.226.20.253) Cannot connect to server - Connection timed out


EMS reports :
v-v-v-v-v-v-v-v-v-v-v-v-v D E T A I L S v-v-v-v-v-v-v-v-v-v-v-v-v



Component Data:
Physical Device Path...: 0/7/0/0.0.0
Device Class...........: Disk
Inquiry Vendor ID......: SEAGATE
Inquiry Product ID.....: ST336704LC
Firmware Version.......: HP01
Serial Number..........: 3CD07RMD00007050J4U4

Product/Device Identification Information:

Logger ID.........: disc30; sdisk
Product Identifier: Disk
Product Qualifier.: SEAGATE ST336704LC
SCSI Target ID....: 0x00
SCSI LUN..........: 0x00

Hardware Status: (not present in log record).

SCSI Sense Data: (not present in log record)


>---------- End Event Monitoring Service Event Notification ----------<

What can couse this problem?

[Torsten.]

The problem is probably caused by the disk.
The EMS shows disk device 0/7/0/0.0.0. This is the disk in the first slot (#0), but if the device is configured to split bus and low addressing, the slot #1 gets also SCSI ID 0 (different bus). You can check this with ioscan and have a look at the dip switch settings on the rear.

[Manoj Radhakrishnan · Accepted solution]

The host detected a SCSI bus hang and performed a Bus Reset to recover from the situation.

You might want to check the FW revisions on your Disk drives connected to the particular SCSI HBA and upgrade the Disk FW if they aren't current.