Drive Ready Time; Spindle Stop Time; Data Transfer Speed - IBM DDRS-39130 - Ultrastar 9.1 GB Hard Drive Specifications
3.5-inch hard disk drive ( 9130 / 4560 mb )
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3.4.3 Drive Ready Time
Figure 9. Drive Ready Time
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Ready
The condition in which the drive is able to perform a media access command (eg. read, write)
immediately. If a command is received during power on before ready, the drive ready time
becomes longer than the specified value.
Power On
This includes the time required for the internal self diagnostics.
3.4.4 Spindle Stop Time
Figure 10. Spindle Stop Time
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The period from power off to complete stop of spindle is categolized as operating, and Operating Shock
criteria are applied until complete stop of spindle.
Refer to 6.9.3, "Operating Shock" on page 55.
3.4.5 Data Transfer Speed
Figure 11. Data Transfer Speed
Description
Disk-Buffer Transfer (Zone 0)
(Instantaneous)
(Sustained)
Disk-Buffer Transfer (Zone 7)
(Instantaneous)
(Sustained)
Buffer-Host
50-pin FAST-20
68-pin / 80-pin FAST-20 Wide
Instantaneous disk-buffer transfer rate (Mbyte/sec) is derived by:
(Number of sectors on a track)*512*(revolution/sec)
Note: Number of sectors per track will vary because of the linear density recording.
Model
DDRS-39130
DDRS-34560
Model
DDRS-39130
DDRS-34560
Typical
15.5 [ sec]
19.9 [ sec]
10.5 [ sec]
19.9 [ sec]
Typical
12.3 [ sec]
14.0 [ sec]
9.3 [ sec]
10.0 [ sec]
Typical
16.0 [ Mbyte/sec]
DDRS-39130 13.4 [ Mbyte/sec]
DDRS-34560 13.3 [ Mbyte/sec]
10.0 [ Mbyte/sec]
DDRS-39130 8.4 [ Mbyte/sec]
DDRS-34560 8.3 [ Mbyte/sec]
20 [ Mbyte/sec]
40 [ Mbyte/sec]
Drive Characteristics
Max.
Max.
13
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