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02-07-2011 06:55 AM
02-07-2011 06:55 AM
I have the following streaming errors going in my messages..kernel: SCSI error : <1 0 0 4> return code = 0x10000
Feb 7 9:22:37 vs80 kernel: end_request: I/O error, dev sdg, sector 0..the messages follows on. I think the 4 from 1 0 0 4 is the lun and it follows for 5 6 7 etc..like 1 0 0 5..looks like a SAN issue, could someone help?
Thanks
Brian
Feb 7 9:22:37 vs80 kernel: end_request: I/O error, dev sdg, sector 0..the messages follows on. I think the 4 from 1 0 0 4 is the lun and it follows for 5 6 7 etc..like 1 0 0 5..looks like a SAN issue, could someone help?
Thanks
Brian
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02-07-2011 03:44 PM
02-07-2011 03:44 PM
Solution
If you have multipathing and all disks connected to a particular HBA are producing errors, you've probably lost a FibreChannel link. Perhaps a fiberoptic cable has been damaged, or a connector has come loose?
Knowing the name and version of your Linux distribution would be helpful. But here's some generic advice...
The first number in <1 0 0 4> etc. is the controller number. In your case, the HBA producing the errors is controller 1. If your system has a 2.6.* series kernel, run "ls -l /sys/class/scsi_host/host1" and see the target of the "device" symlink: you'll see the PCI ID of the HBA that is producing the errors. You can then use the "lspci" command to know the name of the HBA.
With 2.4.* or older kernels, run "less /proc/scsi/scsi" to get much of the same information in a different way.
After that, it's basic troubleshooting: check the link LEDs on the HBA(s), check the link status on FibreChannel switch(es) etc.
MK
Knowing the name and version of your Linux distribution would be helpful. But here's some generic advice...
The first number in <1 0 0 4> etc. is the controller number. In your case, the HBA producing the errors is controller 1. If your system has a 2.6.* series kernel, run "ls -l /sys/class/scsi_host/host1" and see the target of the "device" symlink: you'll see the PCI ID of the HBA that is producing the errors. You can then use the "lspci" command to know the name of the HBA.
With 2.4.* or older kernels, run "less /proc/scsi/scsi" to get much of the same information in a different way.
After that, it's basic troubleshooting: check the link LEDs on the HBA(s), check the link status on FibreChannel switch(es) etc.
MK
MK
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