SCSI bus problem?

[midgaze]

Hi,

I've got a v440 that I just moved to a different rack and attached a SL48 tape library to via the external SCSI interface. Somehow something went wrong though, and I'm having bus problems on the main SCSI bus that the system disks are attached to, even after removing the library. I have a couple of questions:

- is there a chance that these HP LTO-3 drives damaged the controller? I'd like to try another machine, but don't want to break two v440s.

- is what I'm seeing indicative of hardware damage? I'll paste some details below.

I get these messages on boot every time:

Configuring devices.
WARNING: /pci@1f,700000/scsi@2 (mpt0):
Target 0 reducing sync. transfer rate
WARNING: /pci@1f,700000/scsi@2 (mpt0):
Target 1 reducing sync. transfer rate

Here is a snippet from /var/adm/messages:

Aug 1 02:54:59 db3.sea.aventail.net scsi: [ID 107833 kern.warning] WARNING: /pci@1f,700000/scsi@2 (mpt0):
Aug 1 02:54:57 db3.sea.aventail.net pcisch: [ID 370704 kern.info] PCI-device: scsi@2, mpt0
Aug 1 02:54:59 db3.sea.aventail.net Target 0 reducing sync. transfer rate
Aug 1 02:54:57 db3.sea.aventail.net genunix: [ID 936769 kern.info] mpt0 is /pci@1f,700000/scsi@2
Aug 1 02:54:59 db3.sea.aventail.net mpt: [ID 795936 kern.warning] WARNING: ID[SUNWpd.mpt.sync_wide_backoff.6014]
Aug 1 02:54:57 db3.sea.aventail.net scsi: [ID 365881 kern.info] /pci@1f,700000/scsi@2,1 (mpt1):
Aug 1 02:55:00 db3.sea.aventail.net scsi: [ID 107833 kern.warning] WARNING: /pci@1f,700000/scsi@2 (mpt0):
Aug 1 02:54:57 db3.sea.aventail.net initiator SCSI ID now 7
Aug 1 02:55:00 db3.sea.aventail.net Target 1 reducing sync. transfer rate
Aug 1 02:54:57 db3.sea.aventail.net scsi: [ID 365881 kern.info] /pci@1f,700000/scsi@2,1 (mpt1):
Aug 1 02:55:00 db3.sea.aventail.net mpt: [ID 795936 kern.warning] WARNING: ID[SUNWpd.mpt.sync_wide_backoff.6014]
Aug 1 02:54:57 db3.sea.aventail.net Rev. 7 LSI, Inc. 1030 found.
Aug 1 02:54:57 db3.sea.aventail.net scsi: [ID 365881 kern.info] /pci@1f,700000/scsi@2,1 (mpt1):
Aug 1 02:54:57 db3.sea.aventail.net mpt1 supports power management.
Aug 1 02:54:57 db3.sea.aventail.net scsi: [ID 365881 kern.info] /pci@1f,700000/scsi@2,1 (mpt1):
Aug 1 02:54:57 db3.sea.aventail.net mpt1 Firmware version v1.3.27.0 (IM/IME)
Aug 1 02:54:57 db3.sea.aventail.net scsi: [ID 365881 kern.info] /pci@1f,700000/scsi@2,1 (mpt1):
Aug 1 02:54:57 db3.sea.aventail.net mpt1: IOC Operational.
Aug 1 02:54:59 db3.sea.aventail.net pcisch: [ID 370704 kern.info] PCI-device: scsi@2,1, mpt1
Aug 1 02:54:59 db3.sea.aventail.net genunix: [ID 936769 kern.info] mpt1 is /pci@1f,700000/scsi@2,1
Aug 1 02:54:59 db3.sea.aventail.net scsi: [ID 107833 kern.warning] WARNING: /pci@1f,700000/scsi@2 (mpt0):
Aug 1 02:54:59 db3.sea.aventail.net Target 0 reducing sync. transfer rate
Aug 1 02:54:59 db3.sea.aventail.net mpt: [ID 795936 kern.warning] WARNING: ID[SUNWpd.mpt.sync_wide_backoff.6014]
Aug 1 02:54:59 db3.sea.aventail.net scsi: [ID 193665 kern.info] sd0 at mpt0: target 0 lun 0
Aug 1 02:54:59 db3.sea.aventail.net genunix: [ID 936769 kern.info] sd0 is /pci@1f,700000/scsi@2/sd@0,0
Aug 1 02:55:00 db3.sea.aventail.net genunix: [ID 408114 kern.info] /pci@1f,700000/scsi@2/sd@0,0 (sd0) online
Aug 1 02:55:00 db3.sea.aventail.net scsi: [ID 107833 kern.warning] WARNING: /pci@1f,700000/scsi@2 (mpt0):
Aug 1 02:55:00 db3.sea.aventail.net Target 1 reducing sync. transfer rate
Aug 1 02:55:00 db3.sea.aventail.net mpt: [ID 795936 kern.warning] WARNING: ID[SUNWpd.mpt.sync_wide_backoff.6014]
Aug 1 02:55:00 db3.sea.aventail.net scsi: [ID 193665 kern.info] sd1 at mpt0: target 1 lun 0
Aug 1 02:55:00 db3.sea.aventail.net genunix: [ID 936769 kern.info] sd1 is /pci@1f,700000/scsi@2/sd@1,0
Aug 1 02:55:00 db3.sea.aventail.net genunix: [ID 408114 kern.info] /pci@1f,700000/scsi@2/sd@1,0 (sd1) online

Sometimes when the machine boots, it panics with the following:

Rebooting with command: boot
Boot device: /pci@1f,700000/scsi@2/disk@0,0:a File and args:
SunOS Release 5.10 Version Generic_127127-11 64-bit
Copyright 1983-2008 Sun Microsystems, Inc. All rights reserved.
Use is subject to license terms.
WARNING: /pci@1f,700000/scsi@2 (mpt0):
Disconnected command timeout for Target 0
Cannot assemble drivers for root /pci@1f,700000/scsi@2/disk@0,0:a
Cannot mount root on /pci@1f,700000/scsi@2/disk@0,0:a fstype ufs

panic[cpu3]/thread=180e000: vfs_mountroot: cannot mount root

000000000180b950 genunix:vfs_mountroot+32c (800, 200, 0, 1874400, 189e000, 18c8400)
%l0-3: 00000000010bb400 00000000010bb55c 000000000187a130 00000000011e3c00
%l4-7: 00000000011e3c00 00000000018ca800 0000000000000600 0000000000000200
000000000180ba10 genunix:main+98 (1815168, 1015400, 1837940, 18c4c00, 0, 1815000)
%l0-3: 0000000070002000 0000000000000001 0000000070002000 000000000180c000
%l4-7: 000000000180e000 0000000070002000 000000000180c000 0000000000000000

skipping system dump - no dump device configured
rebooting...

SC Alert: Host System has Reset

I've tried different disks, so it's not a drive problem. It's not termination either, unless attaching devices to the interface on the back of the machine could have affected that (there's nothing attached now..)

Anybody seen anything like this? Am I looking at a new system board or is there something else that I can try?

Thank You,

Marcus

 

[KenCunningham]

My original guess was termination issues before I got to the bottom of your post. It still seems possible, however, that the system still sees the tape library - have you removed it with devfsadm?

I want to be good, is that not enough?

 

[KenCunningham]

Sorry, I meant to add that (at the risk of being accused of encouraging cross-posting), you might get a wider audience (and wider experience) for your question in Forum60

I want to be good, is that not enough?

 

[burtsbees]

It does seem to have a command to mount it in vfstab...can you post a more vfstab?

Burt