Figure 77. Command Set-Subcommand - IBM IC35L020 - Deskstar 20 GB Hard Drive Specifications

Command (Subcommand)
S.M.A.R.T. Function
S.M.A.R.T. Read Attribute Values
S.M.A.R.T. Read Attribute Thresholds
S.M.A.R.T. Enable/Disable Attribute Autosave
S.M.A.R.T. Save Attribute Values
S.M.A.R.T. Execute Off-line Data Collection
S.M.A.R.T. Read Log
S.M.A.R.T. Write Log
S.M.A.R.T. Enable Operations
S.M.A.R.T. Disable Operations
S.M.A.R.T. Return Status
S.M.A.R.T. 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
Figure 77. Command set—Subcommand
Figure 76 on pages 101 and 102 shows the commands that are supported by the device. The preceding
figure 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.
B Option Bit. Indicates that the Option Bit of the Sector Count Register should be specified.
(This bit is used by Set Max Address command)
V Valid. Indicates that the bit is part of an output parameter and should be specified.
Deskstar 60 GXP Hard disk drive specification
103
Feature
Command
Register
Code (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 44
EF 55
EF 5D
EF 66
EF 82
EF AA
EF BB
EF CC
EF DD