IBM DYLA-28100 - Travelstar 8.1 GB Hard Drive, Specifications

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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 DYLA-26480 DYLA-27900 DYLA-28100
Logical Head Number 15 15 16
Logical Sectors/Track 63 63 63
Logical Cylinder Number 13328 16383 15880
Logical Sector Size 512 512 512
Total Customer Usable Data Sectors 12 594 960 15 481 935 16 007 040
Total Customer Usable Data Bytes 6440 M B
(6,448,619,520)
7920 M B
(7,926,750,720)
8190 M B
(8,195,604,480)
Figure 4. Data Sheet
Media transfer rate [ Mb/sec] 64.3 - 100.4
Interface transfer rate [ MB/sec] 33.3 MB/sec Max ( Ultra D M A Mode-2 )
16.6 MB/sec Max ( PIO-4 )
Data buffer size [ KB] 459 KB ( Read / Write )
Rotational speed [ R P M ] 4900
Average latency [ msec] 6.1
Recording density [ Kbpi] 221.8 Maximum
Track density [ TPI] 14,000
Areal density [ Gb/sq.in.] 3.11 Maximum
Number of zone 8
Number of data disks 5
Number of data heads 8 / 10
Servo design method Embedded sector servo
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Copyright IBM Corp. 1997
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