Micropolis 1370-Series




Model Number
	1373	1373A	1374	1374A	1375
Unformatted Capacity (MBytes) 85.3 106.7 128.0 149.3 170.6
Disk Platters 3 3 4 4 5
Read/Write Heads 4 5 6 7 8
Formatted Capacity (MBytes) 72.9 91.2 109.4 127.6 145.9
(All other specs are common for all members of the 1370 Series) Bytes per Sector 512
Logical Blocks per Track 36
Cylinders 1,024
Bytes per Track 20,832
Note that all drives from 13xx series are based on the same chassis. Please refer to other models, like model 1325 and the respective series overview pages for more technical info: 1300 series, 1320 series, 1350 series


Platters and r/w-heads of an openened hard-disk-drive
Opened Micropolis 1325 hard-disk-drive, showing data surfaces (platters) and r/w-heads
Illustration from the Micropolis Data Storage Guide

PC Setup

When using SCSI in a PC, the most common method is to run your SETUP program and define "No Drives Present". The SCSI Host Adapter will automatically self-configure on power-up. To install the drive, follow the manufacturer's instructions to use the on-board BIOS routine or software that was supplied with the Host Adapter.


	Seek Time (including settling time)
Track-to-Track 5 msec
Average 23 msec
Maximum 50 msec
Avg. Rotational Latency 8.33 msec
Rotational Speed 3600 rpm +/- 0.5%
Data Transfer Rate at Interface 1.6 Mbits/sec
Internal Data Rate 10 Mbits/sec
MTBF (power-on hours) 30,000
Positioner Fully balanced rotary voice coil
Parking Automatic park and lock

General Functional Specifications

	Form-Factor				5 1/4-inch, "full-height"
Interface SCSI
Supports Full Common Command Set Yes
Write Precompensation Start Cylinder 1024
Reduced Write Current Start Cylinder 1024
Landing Zone 1024
Mounting Plane Any orientation
Drivers/Receivers Single-ended

Power Requirements

	+12V +/-5%				2.0 A average
+12V +/-5% (max. during start-up) 4.25 A
+5V +/-5% (average) 2.0 A
Power Dissipation, typical 35 Watts

Drive Configuration Information

(Board Layout and Jumper Options)

Drive Warranty Information