Huawei E9000 - Page 113

Fault Symptom Handling Procedure
Some multipath
links of LUNs are
down.
1. Ensure that the installed lpfc driver and rmware
match the E9000.
2. Check for error codes on FC links between the HBA
and the storage device.
3. Collect the OS message log and check lpfc and
multipath driver information for faults.
4. Collect log information of the switches.
5. Contact the OS multipath driver vendor or storage
device vendor.
Poor data read/write
performance of
LUNs
1. Check whether the installed lpfc driver and rmware
match the E9000.
2. Check for error codes on FC links between the HBA
and the storage device.
3. Run the iostat command on the host to query the I/O
delay and concurrent I/O operations.
4. Collect the OS message log and check the lpfc driver
information and the I/O queue depth
congured for
the HAB driver.
5. Perform drive performance tests (read and write 100
GB and 100 MB
les).
6. Contact storage analysis engineers.
Quick Recovery from FC Controller Faults
Table 5-20 describes the common quick recovery methods and handling
procedures of FC controller faults.
Huawei Servers
Troubleshooting 5 Diagnosing and Rectifying Faults
Issue 20 (2020-09-25) Copyright © Huawei Technologies Co., Ltd. 104