IBM DBCA-204860 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 Enable Advanced Power Management feature EF 05 Enable Address Offset mode EF 09 34 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 Disalbe Advanced Power Management feature EF 85 Disable Address Offset mode EF 89 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 Figure 58. Command Set (Subcommand) Figure 56 on page 95 and Figure 57 on page 96 shows the commands that are supported by the device. Figure 58 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
Enable Advanced Power Management feature
EF
05
Enable Address Offset mode
EF
09
34 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
Disalbe Advanced Power Management feature
EF
85
Disable Address Offset mode
EF
89
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
Figure 58. Command Set (Subcommand)
Figure 56 on page 95 and Figure 57 on page 96 shows the commands that are supported by the device.
Figure 58 shows the sub-commands that are supported by each command or feature.
Command Descriptions
97