Specifications

Table A-37. RZ56 SCSI Hard Disk Drive Description
Weight Height Width Depth
Internal drive 3.80 kg
(8.40 lb)
82.6 mm
(3.25 in)
146 mm
(5.75 in)
208 mm
(8.20 in)
Table A-38. RZ56 SCSI Hard Disk Drive Specifications
Capacity
– Per drive 655.17 Mbytes
– Per cylinder 1,632
– Per sector 54
– Per surface 50.9 Mbytes
– Per block 512 bytes
Blocks 54 per track
Spare blocks 11 per cylinder
20,316 per drive
Spare cylinders 3
Transfer rate to/from media 1.875 Mbytes/sec
Bus asynchronous mode 1.6 Mbytes/sec
Bus synchronous mode 4.0 Mbytes/sec
Seek time <=4 Msec track-to-track
<=16 Msec average
<=35 Msec maximum
Average latency 8.3 Msec
Interface SCSI
Recording density (bpi at ID) 31,864
Flux density (fci at ID) 21,231
Track density (tpi) 1,440
Tracks per surface (unformatted) 1,632
Tracks per surface (formatted) 1,626
Read/write heads 15
Disks 8
Time to process ECC (512 bytes) <=100 ms
Rotational speed 3,600 RPM
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A–20 Equipment Specifications