IBM DTLA-307075 Hard Drive Specifications - Page 22

Data sheet, 3 Drive organization, Drive format

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4.2 Data sheet Media transfer rate (Mb/sec) Interface transfer rate (MB/sec) Data buffer size1 (KB) Rotational speed (RPM) Average latency (ms) Recording density- max (Kbpi) Track density (Ktpi) Areal density - max (Gbits/in2) Number of zones Number of data disks Number of data heads Servo method 1Upper 132KB is used for firmware DTLA-307xxx 444 max 16.6 (PIO Mode-4) 100 (Ultra DMA Mode-5) 2,048 7,200 4.17 391 28.35 11 15 5/4/3/2/1 10/8/6/4/3/2 Embedded sector servo Figure 2. Mechanical positioning performance DTLA-305xxx 372 max 16.6 (PIO Mode-4) 100 (Ultra DMA Mode-5) 512 5,400 5.56 415 35 14.5 15 2/1 4/3/2 Embedded sector servo 4.3 Drive organization 4.3.1 Drive format Upon shipment from IBM manufacturing the drive satisfies the sector continuity in the physical format by means of the defect flagging strategy described in section 5.0 in order to provide the maximum performance to users. Deskstar 40GV & 75GXP hard disk drive specifications 10

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4.2 Data sheet
1
Upper 132KB is used for firmware
Embedded sector servo
Embedded sector servo
Servo method
4/3/2
10/8/6/4/3/2
Number of data heads
2/1
5/4/3/2/1
Number of data disks
15
15
Number of zones
14.5
11
Areal density - max (Gbits/in
2
)
35
28.35
Track density (Ktpi)
415
391
Recording density- max (Kbpi)
5.56
4.17
Average latency (ms)
5,400
7,200
Rotational speed (RPM)
512
2,048
Data buffer size
1
(KB
)
16.6 (PIO Mode-4)
100 (Ultra DMA Mode-5)
16.6 (PIO Mode-4)
100 (Ultra DMA Mode-5)
Interface transfer rate (MB/sec)
372 max
444 max
Media transfer rate (Mb/sec)
DTLA-305xxx
DTLA-307xxx
Figure 2. Mechanical positioning performance
4.3 Drive organization
4.3.1
Drive format
Upon shipment from IBM manufacturing the drive satisfies the sector continuity in the physical format by
means of the defect flagging strategy described in section 5.0
in order to provide the maximum perform-
ance to users.
Deskstar 40GV & 75GXP hard disk drive specifications
10