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IBM 'Draco' DDRS-39130 9GB

Specification

Performance

Environment

Jumper Settings



Specification

Vendor IBM
Range Draco
Apricot Part Number PT16161731
Form Factor 3.5", 1" high
Weight 630g
Formatted Capacity (x106 bytes) 9130MB
Formatted Capacity (x220 bytes) 8707.05
Number of Platters 5
Number of Heads 10



Performance

Actuator Voice Coil
Positioning System Embedded
Average Access Time Read < 7.5ms
Write  
Single Track Seek Time Read  
Write  
Nominal Rotational Speed 7200RPM
Average Rotational Latency 4.17ms
Maximum Sector Transfer Rate 21.375MB/s
Typical Data Sector Transfer Rate Maximum 13.8MB/s
Minimum 8.6MB/s
Numbers of Sectors / Track Maximum  
Minimum  
Type of Head Utilised MR
Read Channel Implementation PRML
Encoding Method RLL (16,17)
Standard 68 pin 'P' Connector Yes
Wide '16-bit' SCSI Support Yes
UltraSCSI (Double SCSI) Support Yes
Maximum SCSI Burst Transfer Rate 40MB/s Sync.
Cache Size Total 512KB
Read Data  
Segmentation Type  
Continous Read Prefetch Yes
Write Cache Yes



Environment

Ambient operating Temperature Minimum 5C
Maximum 55C
Maximum Thermal Gradient  
Operating Shock, 0 Err's (G, 11ms) 10
Vibration (random) horizontal 0.67 G (5 to 500 Hz)
vertical 0.56 G (5 to 500 Hz)
Maximum Audible Noise (dbA @ 1m) idle 38dbA
Average Power Consumption Nominal Read / Write  
Nominal Idle < 7.09W
DC Power Requirements +12V Startup Average 2.00 Amps
+12V Nominal Read / Write  
+5V Startup Average 0.27 Amps
+5V Nominal Read / Write  
MTBF 800,000 poh



Jumper Settings

Jumper Block Location

iddrsj1.gif (2665 bytes)

Option Jumper Block Assignments

iddrsj2.gif (4088 bytes)

Auxiliary Connector (68-pin model)

iddrsj3.gif (3775 bytes)

 


 

Computing for a Connected World