Quantum Godrive 40S SCSI
Go Drive 40S/80S
Physical Specifications
Logical Specifications
No logical specifications are required to install a Quantum SCSI drive. The
host adapter has on-board BIOS which communicates directly with the drive
to determine the logical parameters of the drive. Thus, the logical parameters
need not be entered by the users.
Physical Specifications
40S 80S
Formatted Capacity(MByte)* 42.9 86.3
Read/Write Heads 2 4
Disks 1 2
Data Cylinders 870 870
Data Tracks 1740 3480
Number of 512 byte sectors 83,800 168,470
Nominal Rotational Speed(RPM) 3600 3600
Max Recording Density(BPI) 48,371 48,371
Max Flux Density(FCI) 36,278 36,278
Track Density (TPI) 1700 1700
Encoding Scheme RLL 1,7 RLL 1,7
* Quantum defines a megabyte(MB) as 10(6) or 1,000,000 bytes.
Performance Specifications
Data Transfer Rates
Buffer to SCSI Bus: Up to 4MB/sec. synchronous
Disk to Buffer Up to 2.25 MB/sec in bursts
Cache Size 40S 80S
Discache w/ WriteCache 8K 32K
Seek/Miscellaneous Times:
TYPICAL
Nominal Condition
40S/80S
Average seek time(msecs) 19
Track-to-track (msec) 5
Full-stroke seek(msec) 30
Average rotational latency(msec) 8.3
Sequential head switch(msec) 4
Stand-by to Drive Ready(sec) <2.5
Power-up time(sec) <4.0
Jumper Settings
Jumpers
There are four pins on the Cable Connector that control the SCSI device ID
(J2 pins 5 -7) and for a drive activity LED(J2 pin8).
Connector J2 Device Address
Pin 7 Pin 6 Pin 5 SCSI ID
Open* Open* Open* 0*
Open Open Ground 1
Open Ground Open 2
Open Ground Ground 3
Ground Open Open 4
Ground Open Ground 5
Ground Ground Open 6
Ground Ground Ground 7
*SCSI ID = 0 Factory set
Environmental Specifications
Operating Non-Operating
Ambient Temperature 5C to 55C -40C to 70C
Ambient Relative Humidity(non-condensing) 8% to 85% 5% to 95%
Altitude(relative to sea level) -60m to 3km -60m to 12km
Shock and Vibration Specifications
Operating Non-Operating
Vibration
5-300 Hz Sine Wave(peak-to-peak) 1G 2G
1 Oct/Min Sine Sweep
Shock
1/2 Sine Wave of 10G 100G
11 msec Duration(10 hits maximum)
Acoustics
Idle Mode 40S/80S: 40 dBA maximum at 1 ft in any
direction
Reliability Specifications
MTBF(Mean Time Between Failure): 80,000 POH
PM(Preventive Maintenance): Not required
Start/Stop: 40,000 cycles
Power Requirements
DC Power
Voltage +5 Vdc +-5%
Ripple and Noise 50 mV
Power Dissipation (typical @ nominal)
Sleep/Standby 0.2W (0.04A)
Parked (actuator off, spindle on) 0.8W (0.16A)
Idle (track following) 1.7W (0.34A)
Reading 2.0W (0.40A)
Writing 2.0W (0.40A)
Seeking 2.2W (0.44A)
Spin-up 4.5W (1.10A)
Power Sequencing
Applying or removing power during drive operation will not cause any damage.
However, data may be lost in the sector being written at the time of power
loss.
Mounting Requirements
Dimensions and Mounting
The drive can be mounted in any orientation. Maximum screw length is 3mm with
three minimum full threads. The maximum mounting torque for these screw is 120
inch-ounces.
Dimensions 40S 80S
Height 0.61 in. (15.6mm) 0.75 in. (19.0mm)
Width 2.76 in. (70.0mm) 2.76 in. (70.0mm)
Depth: 4.00 in. (101.6mm) 4.00 in. (101.6mm)
Connectors
Cable Connector
Connector Type: 2x25 connector on 2mm centers for both power and data.
Mating Connector: Dupont part number 69764-050 or equivalent.
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