IBM DARA-206000 Hard Drive Specifications - Page 176

Device Attribute Thresholds Data Structure

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3 Off-line Read Scanning implemented bit 0 The device does not support Off-line Read Scanning 1 The device supports Off-line Read Scanning 4 Self-test implemented bit 0 Self-test routine is not implemented 1 Self-test routine is implemented 5-7 Reserved (0) 12.31.2.8 SMART Capability This word of bit flags describes the S.M.A.R.T. capabilities of the device. The device will return 03h indicating that the device will save its Attribute Values prior to going into a power saving mode and supports the SMART ENABLE/DISABLE ATTRIBUTE AUTOSAVE command. Bit Definition 0 Pre-power mode attribute saving capability If bit = 1, the device will save its Attribute Values prior to going into a power saving mode (Standby or Sleep mode). 1 Attribute autosave capability If bit = 1, the device supports the SMART ENABLE/DISABLE ATTRIBUTE AUTOSAVE command. 2-15 Reserved (0) 12.31.2.9 Error Logging Capability Bit Definition 7-1 Reserved (0) 0 Error Logging support bit If bit = 1, the device supports the Error Logging 12.31.2.10 Self-test failure check point This byte indicates the section of self-test where the device detected a failure. 12.31.2.11 Self-test completion time These bytes are the minimum time in minutes to complete self-test. 12.31.2.12 Data Structure Checksum The Data Structure Checksum is the 2's compliment of the result of a simple 8-bit addition of the first 511 bytes in the data structure. 12.31.3 Device Attribute Thresholds Data Structure The following defines the 512 bytes that make up the Attribute Threshold information. This data structure is accessed by the host in its entirety using the SMART Read Attribute Thresholds. All multi-byte fields shown in these data structures follow the ATA-3 specification for byte ordering, namely that the least significant byte occupies the lowest numbered byte address location in the field. The sequence of active Attribute Thresholds will appear in the same order as their corresponding Attribute Values. 166 OEM Specifications of DARA-2xxxxx 2.5 inch H D D Rev 2.1

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3
Off-line Read Scanning implemented bit
0
The device does not support Off-line Read Scanning
1
The device supports Off-line Read Scanning
4
Self-test implemented bit
0
Self-test routine is not implemented
1
Self-test routine is implemented
5-7
Reserved (0)
12.31.2.8
SMART Capability
This word of bit flags describes the S.M.A.R.T. capabilities of the device.
The device will return 03h indi-
cating that the device will save its Attribute Values prior to going into a power saving mode and supports the
SMART ENABLE/DISABLE ATTRIBUTE AUTOSAVE command.
Bit
Definition
0
Pre-power mode attribute saving capability
If bit =
1, the device will save its Attribute Values prior to going into a power saving mode
(Standby or Sleep mode).
1
Attribute autosave capability
If bit =
1, the device supports the SMART ENABLE/DISABLE ATTRIBUTE AUTOSAVE
command.
2-15
Reserved (0)
12.31.2.9
Error Logging Capability
Bit
Definition
7-1
Reserved (0)
0
Error Logging support bit
If bit =
1, the device supports the Error Logging
12.31.2.10
Self-test failure check point
This byte indicates the section of self-test where the device detected a failure.
12.31.2.11
Self-test completion time
These bytes are the minimum time in minutes to complete self-test.
12.31.2.12
Data Structure Checksum
The Data Structure Checksum is the 2's compliment of the result of a simple 8-bit addition of the first 511
bytes in the data structure.
12.31.3
Device Attribute Thresholds Data Structure
The following defines the 512 bytes that make up the Attribute Threshold information. This data structure is
accessed by the host in its entirety using the SMART Read Attribute Thresholds.
All multi-byte fields
shown in these data structures follow the ATA-3 specification for byte ordering, namely that the least signif-
icant byte occupies the lowest numbered byte address location in the field.
The sequence of active Attribute Thresholds will appear in the same order as their corresponding Attribute
Values.
166
OEM Specifications of DARA-2xxxxx 2.5 inch HDD Rev 2.1