Troubleshooting
Dynamic Extended Logging
A-4 FC0054606-00 A
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Dynamic Extended Logging
The QLogic driver provides a mechanism to dynamically enable extended error
logging about driver operation. These logs provide debugging and error
information to help you understand driver behavior regarding issues related to the
adapter. These logs are saved in a system log file named vmkernel, in the
/var/log/ directory.
To enable extended error logging, execute the following command:
# echo "scsi-qlaenable-log" > /proc/scsi/qla2300/<adapter_number>
To disable extended error logging, execute the following command:
# echo "scsi-qladisable-log" > /proc/scsi/qla2300/<adapter_number>
When the logging is enabled, the driver version in the
/proc/scsi/qla2300/<adapter number> is appended with a -debug flag
as shown below:
# cat /proc/scsi/qla2300/5
QLogic PCI to Fibre Channel Host Adapter for QLE2462:
Firmware version: 4.04.05, Driver version 7.08-vm62-debug
Boot Code Version:
BIOS : v2.02, Fcode : v2.00, EFI : v2.00
Entry address = 0x8b0000
NOTE:
Although the driver logs provide debugging and error information, they also
increase I/O latency. Therefore, QLogic does not recommend that you
enable extended logging during normal operations.
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