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Table A-5
RZ23 and RZ24 Hard Disk Drive Specifications
Formatted Storage Capacity
Per drive
Per surface
Bytes per track
Bytes per block
Blocks per track
Blocks per drive
Spare blocks per track
Spare tracks
Spare blocks per drive
Performance
Transfer rate to/from media
Transfer rate to/from buffer (asyn-
chronous)
Transfer rate to/from buffer (syn-
chronous)
Seek time track to track
Seek time average
Seek time maximum (full stroke)
Average latency
Rotational speed
Start time (maximum)
Stop time (maximum)
Interleave
Functional Specifications
Recording Density (bpi at
ID)
Flux Density (fci at
ID)
Track Density (tpi)
Tracks/Surface
R/W Heads
Disks
Time to Process ECC (512B)
RZ23
105MB
13MB
16,896
512
33
204,864
1
6,208
RZ23
l.25MB/sec
l.5MB/sec
l.5MB/sec
:::; 8 msec
:::; 25 msec
:::; 45 msec
8.4 msec
3575 RPM ±0.1%
20 sec
20 sec
1:1
RZ23
23,441
15,627
1150
776
8
4
<100 msec
RZ24
209MB
26.2MB
19,456
512
38 and 1 spare
409,792
0
10,944
RZ24
l.5MB/sec
3MB/sec
4MB/sec
:::; 5 msec
:::; 16 msec
:::; 35 msec
8.6 msec
3497 RPM ±0.5%
20 sec
20 sec
1:1
RZ24
31,800
21,200
1700
1348
8
4
<100 msec
System Specifications
A-3
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