6.9 Querying and Setting the Write Mode
6.9.1 Querying the Write Mode of an SSD
Function
This command is used to query the write mode of an SSD.
Format
hioadm writemode -d
devicename
Parameters
Parameter
Description
Value
devicename
Name of a device.
Example:
nvme0
Usage Guidelines
None
Example
# Query the write mode of the
nvme0
SSD.
[root@localhost tool]#
hioadm writemode -d nvme0
write mode: cache
6.9.2 Setting the Write Mode of an SSD
Function
This command is used to set the write mode of an SSD.
Format
hioadm writemode -d
devicename
-m
mode
Parameters
Parameter
Description
Value
devicename
Name of a device.
Example:
nvme0
mode
Write mode.
l
0
: write through
l
1
: cache
NOTE
The write through mode affects the write performance.
ES3000 V3 NVMe PCIe SSD
User Guide
6 Command Description
Issue 20 (2019-02-27)
Copyright © Huawei Technologies Co., Ltd.
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