Table 98 Command Set (Subcommand) - Western Digital Ultrastar DC HC310 Specifications

Command (Subcommand)
(SMART Function)
SMART Read Attribute Values
SMART Read Attribute Thresholds
SMART Enable/Disable Attribute Autosave
SMART Save Attribute Values
SMART Execute Off-line Data Collection
SMART Read Log
SMART Write Log
SMART Enable Operations
SMART Disable Operations
SMART Return Status
SMART Enable/Disable Automatic Off-line
(Set Features)
Enable Write Cache
Set Transfer Mode
Enable Advanced Power Management
Enable Power-up in Standby Feature Set
Power-up in Standby Feature Set Device Spin-up
Disable read look-ahead feature
Disable reverting to power on defaults
Disable write cache
Disable Advanced Power Management
Disable Power-up in Standby Feature Set
Enable read look-ahead feature
Enable reverting to power on defaults
(Sanitize Device Feature Set)
Sanitize Status Ext
Crypto Scramble Ext
Overwrite Ext
Sanitize Freeze Lock Ext
(NCQ NON-DATA)
Abort NCQ queue – Abort All
Abort NCQ queue – Abort Streaming
Abort NCQ queue – Abort Non-Streaming
Abort NCQ queue – Abort Selected
Deadline Handling – WDNC
Deadline Handling – RDNC

Table 98 Command Set (Subcommand)

Table 95 Command Set on the page 118 and Table 96 Command Set –Continued– on the page 119 show the
commands that are supported by the device. Table 98 Command Set (Subcommand) on the page 121 shows the
sub-commands they are supported by each command or feature.
Western Digital Hard Disk Drive OEM Specification
Command code
121
Feature
Register
(Hex)
(Hex)
B0 D0
B0 D1
B0 D2
B0 D3
B0 D4
B0 D5
B0 D6
B0 D8
B0 D9
B0 DA
B0 DB
EF 02
EF 03
EF 05
EF 06
EF 07
EF 55
EF 66
EF 82
EF 85
EF 86
EF AA
EF CC
B4 0000
B4 0011
B4 0014
B4 0020
63 00
63 10
63 20
63 30
63 Set:11
Clear:01
63 Set:21
Clear:01