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IBM 'Draco' DDRS-39130 9GB
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 |
5°C |
| Maximum |
55°C |
| 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
Option Jumper Block Assignments
Auxiliary Connector (68-pin model)
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