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Intel® Solid-State Drive DC P3700 Series
May 2015 Product Specification
330566-009US 43
Command
Code
Offset
(byte)
Description
range -60 to +127°C. The 8 bit format of the data is shown below.
This field should not report a temperature when that is older than 5 seconds. If recent
data is not available, the NVMe management endpoint should indicate a value of 80h for
this field.
Value
Description
00h-7Eh
Temperature is measured in degrees Celsius (0° to 126° C)
7Fh
127° C or higher
80h
No temperature data or temperature data is more than
5 seconds old.
81h
Temperature sensor failure
82h-C3h
Reserved
C4
Temperature is -60° C or lower
C5-FFh
Temperature measured in degrees Celsius is represented in
twos complement (-1° to -59° C)
04
Percentage Drive Life Used (PDLU): Contains a vendor specific estimate of the
percentage of NVM subsystem NVM life used based on the actual usage and the
manufacturer’s prediction of NVM life. If an NVM subsystem has multiple controllers the
highest value is returned. A value of 100 indicates that the estimated endurance of the
NVM in the NVM subsystem has been consumed, but may not indicate an NVM
subsystem failure. The value is allowed to exceed 100. Percentages greater than 254
shall be represented as 255. This value should be updated once per power-on hour and
equal the Percentage Used value in the NVMe SMART Health Log Page.
06:05
Reserved: Shall be set to 0000h
07
PEC: An 8 bit CRC calculated over the slave address, command code, second slave
address and returned data. Algorithm is in SMBus Specifications.
8
08
Length of identification: Indicates number of additional bytes to read before
encountering PEC. This value should always be 22 (16h) in implementations of this
version of the spec.
10:09
Vendor ID: The 2 byte vendor ID, assigned by the PCI SIG. Should match VID in the
Identify Controller command response. MSB is transmitted first.
30:11
Serial Number: 20 characters that match the serial number in the NVMe Identify
Controller command response. First character is transmitted first
31
PEC: An 8 bit CRC calculated over the slave address, command code, second slave
address and returned data. Algorithm is in SMBus Specifications.
32+
255:32
Vendor Specific – This data structure shall not exceed the maximum read length of 255
specified in the SMBus version 3 specification. Preferably length is not greater than 32 for
compatibility with SMBus 2.0, additional blocks shall be on 8 byte boundaries.
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