Users Guide

Broadcom DRVLin-LPe-UG124-100
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Emulex Drivers for Linux User Guide
Chapter 5: Troubleshooting
This section explains some of the situations in which your system can operate in an unexpected manner and some possible
resolutions.
5.1 Hardware Situations and Resolutions
Tab l e 5 lists the hardware situations and their resolutions.
5.2 FC Driver Situations and Their Resolutions
Tab l e 6 lists the FC driver situations and their resolutions.
Table 5: Hardware Situations and Their Resolutions
Situation Resolution
An unapproved optical
transceiver is used to connect
the adapter.
The system log can generate one or more of these events if an unapproved optical transceiver is
detected:
 Unsupported module
 Optics faulted, incorrectly installed, or not installed
 Incompatible optics
 Unknown port SFB status
To resolve this issue, do the following:
1. Power off the system.
2. Replace the unapproved optical transceiver with an approved one.
3. Power on the system.
NOTE: For more information on replacing an optical transceiver, refer to the specific adapter hardware
guide available at the Documents and Downloads area of www.broadcom.com.
Table 6: FC Driver Situations and Their Resolutions
Situation Resolution
FC link fails to come up. If an FC link fails to come up, verify that an 8 Gb/s or 16 Gb/s adapter is not
attempting to connect to a 1 Gb/s device. Only 2 Gb/s, 4 Gb/s, and 8 Gb/s devices
are supported on 8 Gb/s adapters. Only 4 Gb/s, 8 Gb/s, and 16 Gb/s devices are
supported on 16 Gb/s adapters.
If a SAN configuration has 256 targets mapped by
the FC driver, any additional added targets do not
get a target ID mapping by the driver and cause
target discovery to fail.
Removing targets or reinitializing the link does not solve this issue.
Unload and reload the driver to reset available target IDs. Ensure that the SAN
configuration is correct prior to rebooting the driver. This action clears the driver
consistent binding table and frees target IDs for new target nodes.
rmmod fails to unload FC driver module due to
ERROR: Module lpfc is in use.
This message can appear when you attempt to remove the driver and a Logical
Volume Group is dependent on the driver.
Driver unload is not supported in SAN-booted environments unless the inbox driver
supports SAN boot. Otherwise, use these steps to resolve this situation:
1. Make the Logical Volume Group unavailable. Type:
lvchange -a n xxxxxxx
The
xxxxxxx parameter is the Volume Group Name.
2. Stop the Emulex OneCommand Manager application.
3. Stop Device Mapper.