Table 65 Command Set (Subcommand) - Hitachi HDS723020BLA642 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

Table 65 Command Set (Subcommand)

Table 63 Command Set on the page 107 and Table 64 Command Set --Continued-- on the page 108 show
the commands that are supported by the device. Table 65 Command Set (Subcommand) on the page 109
shows the sub-commands they are supported by each command or feature.
Hitachi hard disk drive specifications
109
Command code
(Hex)
B0
B0
B0
B0
B0
B0
B0
B0
B0
B0
B0
EF
EF
EF
EF
EF
EF
EF
EF
EF
EF
EF
EF
Feature
Register
(Hex)
D0
D1
D2
D3
D4
D5
D6
D8
D9
DA
DB
02
03
05
06
07
55
66
82
85
86
AA
CC