IBM DARA-206000 Hard Drive Specifications - Page 19

Drive Characteristics - model

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3.0 Drive Characteristics 3.1 Default Logical Drive Parameter Default of logical drive parameters in Identify Device data are as follows. Figure 3. Default Drive Parameters Model Capacity Word 1 (GB) (Cyl) DARA-206000 6 12416 DARA-209000 9 16383 DARA-212000 12 16383 DARA-215000 15 16383 DARA-218000 18 16383 DARA-225000 25 16383 Word 3 (Head) 15 16 16 16 16 16 Word 6 (Sect/Trk) 63 63 63 63 63 63 Word 60-61 (LBA) 11,733,120 17,660,160 23,579,136 29,498,112 35,433,216 49,577,472 Customer Usable Data Bytes 6,007,357,440 9,042,001,920 12,072,517,632 15,103,033,344 18,141,806,592 25,383,665,664 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 [Gb/sq.in.] Number of zone Number of disks Number of heads Servo design method 161.6 - 85.5 (DARA-218000/215000/212000/209000/206000) 181.2 - 105.1 (DARA-225000) 66.6 max ( Ultra DMA Mode-4 ) 16.6 max ( PIO-4 ) 418 KB ( Read / Write ) 4200 (DARA-218000/215000/212000/209000/206000) 5411 (DARA-225000) 7.1 (DARA-218000/215000/212000/209000/206000) 5.5 (DARA-225000) 356 max (DARA-218000/215000/212000/209000/206000) 327 max (DARA-225000) 28,500 (DARA-218000/215000/212000/209000/206000) 26,800 (DARA-225000) 10.1 max (DARA-218000/215000/212000/209000/206000) 8.8 Max (DARA-225000) 12 1/ 2/ 2/ 3/ 3/ 5 2 / 3 / 4 / 5 / 6 / 10 Embedded sector servo  Copyright IBM Corp. 1999 9

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3.0
Drive Characteristics
3.1
Default Logical Drive Parameter
Default of logical drive parameters in Identify Device data are as follows.
3.2
Data Sheet
Figure 3. Default Drive Parameters
Model
Capacity
(GB)
Word 1
(Cyl)
Word 3
(Head)
Word 6
(Sect/Trk)
Word 60-61
(LBA)
Customer Usable
Data Bytes
DARA-206000
6
12416
15
63
11,733,120
6,007,357,440
DARA-209000
9
16383
16
63
17,660,160
9,042,001,920
DARA-212000
12
16383
16
63
23,579,136
12,072,517,632
DARA-215000
15
16383
16
63
29,498,112
15,103,033,344
DARA-218000
18
16383
16
63
35,433,216
18,141,806,592
DARA-225000
25
16383
16
63
49,577,472
25,383,665,664
Figure 4. Data Sheet
Media transfer rate [Mb/sec]
161.6 -
85.5
(DARA-218000/215000/212000/209000/206000)
181.2 - 105.1
(DARA-225000)
Interface transfer rate [MB/sec]
66.6 max
( Ultra DMA Mode-4 )
16.6 max
( PIO-4 )
Data buffer size [KB]
418 KB
( Read / Write )
Rotational speed [RPM]
4200
(DARA-218000/215000/212000/209000/206000)
5411
(DARA-225000)
Average latency
[msec]
7.1
(DARA-218000/215000/212000/209000/206000)
5.5
(DARA-225000)
Recording density [Kbpi]
356 max
(DARA-218000/215000/212000/209000/206000)
327 max
(DARA-225000)
Track density [TPI]
28,500
(DARA-218000/215000/212000/209000/206000)
26,800
(DARA-225000)
Areal density [Gb/sq.in.]
10.1 max
(DARA-218000/215000/212000/209000/206000)
8.8 Max
(DARA-225000)
Number of zone
12
Number of disks
1/2/2/3/3/5
Number of heads
2 / 3 / 4 / 5 / 6 / 10
Servo design method
Embedded sector servo
Copyright IBM Corp. 1999
9