IBM DTNA-22160 Hard Drive Specifications - Page 17

Drive Characteristics

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3.0 Drive Characteristics This chapter provides the characteristics of the drives. 3.1 Logical Drive Format The customer usable data capacity is as shown below. Figure 3. Drive Parameter Descriptions Logical Head Number Logical Sectors/Track Logical Cylinder Number Logical Sector Size Total Customer Usable Data Sectors Total Customer Usable Data Bytes DTNA-21800 16 63 3500 512 3 528 000 1800 MB (1,806,336,000) DTNA-22160 16 63 4200 512 4 233 600 2160 MB (2,167,603,200) 3.2 Data Sheet Figure 4. Data Sheet Media transfer rate [Mb/sec] Interface transfer rate [MB/sec] Data buffer size [ KB] Rotational speed [RPM] Average latency [msec] Recording density [Kbpi] Track density [TPI] Areal density [Mb/sq.in.] Number of zone Number of disks Number of heads Servo design method 39.1 - 61.6 16.6 MB/sec Max ( PIO-4 / DMA-2 ) 96 KB ( Read / Write ) 4000 7.5 147.8 Maximum 8670 1280 Maximum 8 3 5/6 Embedded sector servo © Copyright IBM Corp. 1997 9

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3.0
Drive Characteristics
This chapter provides the characteristics of the drives.
3.1
Logical Drive Format
The customer usable data capacity is as shown below.
3.2
Data Sheet
Figure 3. Drive Parameter
Descriptions
DTNA-21800
DTNA-22160
Logical Head Number
16
16
Logical Sectors/Track
63
63
Logical Cylinder Number
3500
4200
Logical Sector Size
512
512
Total Customer Usable Data Sectors
3 528 000
4 233 600
Total Customer Usable Data Bytes
1800 MB
(1,806,336,000)
2160 MB
(2,167,603,200)
Figure 4. Data Sheet
Media transfer rate [Mb/sec]
39.1 - 61.6
Interface transfer rate [MB/sec]
16.6 MB/sec Max
( PIO-4 / DMA-2 )
Data buffer size [KB]
96 KB
( Read / Write )
Rotational speed [RPM]
4000
Average latency
[msec]
7.5
Recording density [Kbpi]
147.8 Maximum
Track density [TPI]
8670
Areal density [Mb/sq.in.]
1280 Maximum
Number of zone
8
Number of disks
3
Number of heads
5/6
Servo design method
Embedded sector servo
Copyright IBM Corp. 1997
9