Table A-72
Command Dword 10
Bit
Description
31:00
Data_Len:
The length of data transmission is in the unit of Dword. If
data transmission is not needed, then the value is 0 h.
Table A-73
Command Dword 12
Bit
Description
31:16
Sub_OpType:
Subcommand Processing Type
15:00
Sub_OpCode:
Subcommand Number
This command currently supports the custom Sub_Opcode as follows:
Table A-74
Sub_Opcode
Sub_OpCode
Description
01h
Obtain logs.
02h
Obtain SSD ID parameters.
03h
Obtain the function enablement status.
20h
Query the maximum available capacity of the SSD.
21h
Obtain the vendor-defined log length.
25h
Query the PCB version.
29h
Obtain the self-diagnosis result.
2Ah
Obtain the chipset DIE ID.
57h
Obtain the average DWPD value.
59h
Obtain the unique ID.
157h
Obtain the pending list.
A.6.2.1.1 Obtaining Logs and Statistical Information
This command is used to obtain vendor logs and statistics information from the SSD.
Each command sent from the host can obtain a maximum of 4KB of logs. The host obtains
the total log size through the vendor log length query command (SubOpCode 0x21h) and then
sends commands repeatedly to obtain all logs. Besides the total data size, the commands must
also specify an offset value, where 1 indicates 4 KB.
ES3000 V5 NVMe PCIe SSD
User Guide
A Supported NVMe Commands
Issue 07 (2019-03-19)
Copyright © Huawei Technologies Co., Ltd.
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