IBM DTCA-24090 Hard Drive Specifications - Page 105

S.M.A.R.T function

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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 Immediate SMART Enable Operations SMART Disable Operations SMART Return Status Command Feature Code Register (Hex) (Hex) B0 D0 B0 D1 B0 D2 B0 D3 B0 D4 B0 D8 B0 D9 B0 DA (Set Features) Enable Write Cache EF 02 Set Transfer Mode EF 03 22 bytes of ECC apply on Read/Write Long EF 44 Disable read look ahead feature EF 55 Disable reverting to power on defaults EF 66 Disable write cache EF 82 Enable read look ahead feature EF AA 4 bytes of ECC apply on Read/Wrtie Long EF BB Enable reverting to power on defaults EF CC | Enable Advanced Power Management feature EF 05 | Disable Advanced Power Management feature EF 85 Figure 56. Command Set (Subcommand) Figure 54 on page 95 and Figure 55 on page 96 shows the commands that are supported by the device. Figure 56 shows the sub-commands that are supported by each command or feature. Command Descriptions 97

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Command
Feature
Command (Subcommand)
Code
Register
(Hex)
(Hex)
(S.M.A.R.T function)
SMART Read Attribute Values
B0
D0
SMART Read Attribute Thresholds
B0
D1
SMART Enable/Disable Attribute Autosave
B0
D2
SMART Save Attribute Values
B0
D3
SMART Execute Off line Immediate
B0
D4
SMART Enable Operations
B0
D8
SMART Disable Operations
B0
D9
SMART Return Status
B0
DA
(Set Features)
Enable Write Cache
EF
02
Set Transfer Mode
EF
03
22 bytes of ECC apply on Read/Write Long
EF
44
Disable read look ahead feature
EF
55
Disable reverting to power on defaults
EF
66
Disable write cache
EF
82
Enable read look ahead feature
EF
AA
4 bytes of ECC apply on Read/Wrtie Long
EF
BB
Enable reverting to power on defaults
EF
CC
|
Enable Advanced Power Management feature
EF
05
|
Disable Advanced Power Management feature
EF
85
Figure 56. Command Set (Subcommand)
Figure 54 on page 95 and Figure 55 on page 96 shows the commands that are supported by the device.
Figure 56 shows the sub-commands that are supported by each command or feature.
Command Descriptions
97