Huawei E9000 Troubleshooting Manual page 112

Huawei Servers
Troubleshooting
Fault Symptom
The storage device
fails to identify the
host World Wide
Port Name
(WWPN).
The storage device
has identified the
HBA WWPN, but
LUNs cannot be
mapped to the host.
Issue 20 (2020-09-25)
Handling Procedure
1. Connect to the switch and run the brocade:
switchshow command to query port connection
status.
2. If the switch fails to obtain the host WWPN, the host
bus adapter (HBA) cannot register with the switch. In
this case, do as follows:
a. Check that the HBA and the processor connected
to the PCIe bus are installed properly.
b. (Optional) Check the mapping between the HBAs
and switch modules for E9000 and E6000 servers.
c. Check the FC link between the HBA and the switch
by checking the optical module power, optical
fiber, and optical module compatibility. If E9000
servers are used, check the HBA work mode.
d. Ensure that the lpfc driver and firmware matching
the E9000 are installed.
e. If multiple switches are connected, check whether
the switch connection mode (AG or TR) is correct.
f. Collect the OS message logs and check lpfc driver
information for faults.
g. Collect log information of the switches.
3. If the HBA is successfully registered with the switch,
the switch obtains the host WWPN, but the storage
cannot identify host WWPNs, rectify the fault as
follows:
a. Check the FC links (optical cables and modules)
between the switch and the storage device.
b. Check whether the HBA and the storage ports are
in the same zone.
c. Check whether the zone configurations are the
same for switches from the same vendor.
d. Collect the OS message logs and check lpfc driver
information for faults.
e. Collect the log information of switches.
1. Check whether the lpfc driver and firmware matching
the E9000 have been installed.
2. Collect the OS message logs and check lpfc driver
information for faults.
3. Collect log information of the switches.
4. If no faults are identified, faults may exist on the
storage device or OS SCSI application layer. Contact
the OS or storage device vendor.
Copyright © Huawei Technologies Co., Ltd.
5 Diagnosing and Rectifying Faults
103