IBM DTLA-305040 Hard Drive Specifications - Page 119

S.M.A.R.T. Function, SMART Enable/Disable Attribute Autosave

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Command (Subcommand) S.M.A.R.T. 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 40 bytes of ECC apply on Read/Write Long Disable read look-ahead feature Enable release interrupt Disable reverting to power on defaults Disable write cache Enable read look-ahead feature 4 bytes of ECC apply on Read/Write Long Enable reverting to power on defaults Disable release interrupt Command Code (Hex) B0 B0 B0 B0 B0 B0 B0 B0 B0 B0 B0 Feature Register (Hex) D0 D1 D2 D3 D4 D5 D6 D8 D9 DA DB EF 02 EF 03 EF 44 EF 55 EF 5D EF 66 EF 82 EF AA EF BB EF CC EF DD Figure 85. Command set (Subcommand) Figure 84 on pages 30 and 0 shows the commands that are supported by the device. Figure 85 shows the subcommands that are supported by each command or feature. The following symbols are used in the command descriptions: Output Registers 0 Indicates that the bit must be set to zero. 1 Indicates that the bit must be set to one. D The device number bit. Indicates that the device number bit of the Device/Head Register should be specified. Zero selects the master device and one selects the slave device. H Head number. Indicates that the head number part of the Device/Head Register is an output parameter and should be specified. L LBA mode. Indicates the addressing mode. Zero specifies CHS mode and one does LBA addressing mode. R Retry. Indicates that the Retry bit of the Command Register should be specified. Deskstar 40GV & 75GXP hard disk drive specifications 107

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02
03
44
55
5D
66
82
AA
BB
CC
DD
EF
EF
EF
EF
EF
EF
EF
EF
EF
EF
EF
Set Features
Enable Write Cache
Set Transfer Mode
40 bytes of ECC apply on Read/Write Long
Disable read look-ahead feature
Enable release interrupt
Disable reverting to power on defaults
Disable write cache
Enable read look-ahead feature
4 bytes of ECC apply on Read/Write Long
Enable reverting to power on defaults
Disable release interrupt
D0
D1
D2
D3
D4
D5
D6
D8
D9
DA
DB
B0
B0
B0
B0
B0
B0
B0
B0
B0
B0
B0
S.M.A.R.T. 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
Feature
Register
(Hex)
Command
Code (Hex)
Command (Subcommand)
Figure 85. Command set (Subcommand)
Figure 84 on pages 30 and 0 shows the commands that are supported by the device.
Figure 85 shows
the subcommands that are supported by each command or feature.
The following symbols are used in the command descriptions:
Output Registers
0
Indicates that the bit must be set to zero.
1
Indicates that the bit must be set to one.
D
The device number bit. Indicates that the device number bit of the Device/Head Register
should be specified. Zero selects the master device and one selects the slave device.
H
Head number. Indicates that the head number part of the Device/Head Register is an
output parameter and should be specified.
L
LBA mode. Indicates the addressing mode. Zero specifies CHS mode and one does LBA
addressing mode.
R
Retry. Indicates that the Retry bit of the Command Register should be specified.
Deskstar 40GV & 75GXP hard disk drive specifications
107