IBM DBCA-204860 Hard Drive Specifications - Page 163

Total Time in Seconds to Complete Next Segment

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1 Segment completed without error 2 All segments completed without errors. In this case, current segment pointer equals to total seg- ments required. 5 Off-line data collecting aborted by interrupting command 6 Off-line data collection aborted with fatal error 12.30.2.4 Total Segments Required for Off-line Data Collection The device will return 01h as the total segments for off-line data collection. A segment is a unit of off-line data collection activity. The device divides its segment into 7 subsegments. A subsegment is not a hostvisible test unit. Subsegment 1 through 4 are raw read error rate and throughput measurement. Each of them reads from LBA 0000h to 95040h, resulting the total number of read bits to be 10000269312. Subsegment 5 is 1680 track to track seeks. Subsegment 6 is 1680 1/3 stroke seeks. Subsegment 7 = 1680 full stroke seeks. 12.30.2.5 Total Time in Seconds to Complete Next Segment This field tells the host how many seconds the device requires to complete the segment pointed by the current segment pointer. The host can use this time to set a count down timer that will trigger it to issue the "SMART Read Attribute Values" subcommand to check on the status of off-line data collection. Because the number of segments is 1, this field always indicates the total time in seconds for whole off-line data collectoin activity. 12.30.2.6 Current Segment Pointer This byte is a counter indicating the next segment to execute as an off-line data collection activity. Because the number of segments is 1, 01h is always returned in this field. 12.30.2.7 Off-Line Data Collection Capability The device returns 05h as its off-line data collection capabillty which means: Bit Definition 0 Execute Off-line Immediate is implemented 1 Enable/Disable Automatic Off-line is N O T implemented 2 Abort/restart off-line by host The device will abort all off-line data collection activity initiated by an S.M.A.R.T. Execute Offline Immediate subcommand upon receipt of a new command. Off-line data collection activity must be restarted by a new S.M.A.R.T. Execute Off-line Immediate subcommand from the host. Command Descriptions 155

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1
Segment completed without error
2
All segments completed without errors. In this case, current segment pointer equals to total seg-
ments required.
5
Off-line data collecting aborted by interrupting command
6
Off-line data collection aborted with fatal error
12.30.2.4
Total Segments Required for Off-line Data Collection
The device will return 01h as the total segments for off-line data collection.
A segment is a unit of off-line
data collection activity.
The device divides its segment into 7 subsegments. A subsegment is not a host-
visible test unit. Subsegment 1 through 4 are raw read error rate and throughput measurement. Each of them
reads from LBA 0000h to 95040h, resulting the total number of read bits to be 10000269312. Subsegment 5
is 1680 track to track seeks.
Subsegment 6 is 1680 1/3 stroke seeks. Subsegment 7 =
1680 full stroke seeks.
12.30.2.5
Total Time in Seconds to Complete Next Segment
This field tells the host how many seconds the device requires to complete the segment pointed by the
current segment pointer.
The host can use this time to set a count down timer that will trigger it to issue the
“SMART Read Attribute Values” subcommand to check on the status of off-line data collection.
Because
the number of segments is 1, this field always indicates the total time in seconds for whole off-line data
collectoin activity.
12.30.2.6
Current Segment Pointer
This byte is a counter indicating the next segment to execute as an off-line data collection activity.
Because
the number of segments is 1, 01h is always returned in this field.
12.30.2.7
Off-Line Data Collection Capability
The device returns 05h as its off-line data collection capabillty which means:
Bit
Definition
0
Execute Off-line Immediate is implemented
1
Enable/Disable Automatic Off-line is NOT implemented
2
Abort/restart off-line by host
The device will abort all off-line data collection activity initiated by an S.M.A.R.T. Execute Off-
line Immediate subcommand upon receipt of a new command.
Off-line data collection activity
must be restarted by a new S.M.A.R.T. Execute Off-line Immediate subcommand from the host.
Command Descriptions
155