Qlogic Fibre Channel HBA and VM Guía de usuario descargar pdf (Pagina 36)

Troubleshooting

Dynamic Extended Logging

A-4 FC0054606-00 A

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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Qlogic Fibre Channel HBA and VM Guía de usuario Pagina 36