a.
Run the following command to record the original a8 register value (the PCI data in
column 9 of row a0):
lspci -xxx -s <B/D/F>
<
B/D/F
>: indicates the root port (B/D/F) of the NVMe drive. For details about the
B/D/F information, see
For example, if the drive No. is 2, run the following command:
lspci -xxx -s 85:03.0
Figure 3-45
Querying the original register value
NOTE
If the default a8 register value is not
f1
, contact Huawei technical support.
b.
Change the value of the a8 register to
e1
.
setpci -s <B/D/F> a8.B=e1
<
B/D/F
>: indicates the root port (B/D/F) of the NVMe drive. For details about the
c.
Run the following command to check the modification result:
lspci -xxx -s <B/D/F>
<
B/D/F
>: indicates the root port (B/D/F) of the NVMe drive. For details about the
Figure 3-46
Querying the new register value of drive 2 (example)
FusionServer Pro CH121 V5 Compute Node
Maintenance and Service Guide
3 Basic Operations
Issue 06 (2019-08-10)
Copyright © Huawei Technologies Co., Ltd.
42