Difference between revisions of "RP04 disk drive"

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m (Mod infobox to use simple param names)
(Add manufac info)
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{{Infobox Disk drive  
 
{{Infobox Disk drive  
 
| name = RP04
 
| name = RP04
<!-- | manufacturer = [[Digital Equipment Corporation]] -->
+
| manufacturer = Sperry Univac ISS (basic drive), Digital Equipment Corporation (electronics)
 
| capacity = 88 Mbytes
 
| capacity = 88 Mbytes
 
| controller = [[RH11 MASSBUS controller|RH11]] ([[UNIBUS]])
 
| controller = [[RH11 MASSBUS controller|RH11]] ([[UNIBUS]])
<!-- | average access time = 70 msec -->
+
| average access time = 36.3 msec
 
| transfer rate = 2.5 usec/word
 
| transfer rate = 2.5 usec/word
 
| rpm = 3600
 
| rpm = 3600
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<!-- | tracks per inch = 100 -->
 
<!-- | tracks per inch = 100 -->
 
| density = 4040 bpi (maximum)
 
| density = 4040 bpi (maximum)
| recording method = [[Modified Frequence Modulation]]
+
| recording method = [[Modified Frequence Modulation]] (MFM)
 
| physical size = 31" W x 40" H x 32" L
 
| physical size = 31" W x 40" H x 32" L
 
| weight = 600 pounds
 
| weight = 600 pounds
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}}
 
}}
  
The '''RP04''' was the successor to the [[RP02]] and [[RP03]] multi-[[platter]] large [[disk]] drives. It used a [[pack]] compatible with the [[IBM 3336]] pack, used on the [[IBM 3330]] drive.
+
The '''RP04''' was the successor to the [[RP03 disk drive|RP03]] multi-[[platter]] large [[disk]] drive. It used a [[pack]] compatible with the [[IBM 3336]] pack, used on the [[IBM 3330]] drive.
 +
 
 +
The actual drive was produced by the Information Storage Systems (ISS) division of Sperry Univac, and [[OEM]]'d by [[DEC]].
  
 
It was the first large drive to use the [[MASSBUS]] bus; thus, it did not have a specific [[device controller]], but used the appropriate MASSBUS controller. A maximum of 8 drives were supported per controller.
 
It was the first large drive to use the [[MASSBUS]] bus; thus, it did not have a specific [[device controller]], but used the appropriate MASSBUS controller. A maximum of 8 drives were supported per controller.

Revision as of 14:17, 3 October 2017


RP04
Manufacturer: Sperry Univac ISS (basic drive), Digital Equipment Corporation (electronics)
Drive Controller(s): RH11 (UNIBUS)
Capacity: 88 Mbytes
Transfer Rate: 2.5 usec/word
Average Access Time: 36.3 msec
Revolutions per Minute: 3600
1/2 Revolution Time: 8.3 msec
One Track Seek Time: 7 msec
Average Seek Time: 28 msec
Maximum Seek Time: 50 msec
Total Surfaces: 19
Tracks per Surface: 411
Sectors per Track: 22
Words per Sector: 256
Density: 4040 bpi (maximum)
Recording Method: Modified Frequence Modulation (MFM)
Physical Size: 31" W x 40" H x 32" L
Weight: 600 pounds
Power Consumption: 660 VA per phase (running); 3300 VA per phase (starting, 10 seconds max)


The RP04 was the successor to the RP03 multi-platter large disk drive. It used a pack compatible with the IBM 3336 pack, used on the IBM 3330 drive.

The actual drive was produced by the Information Storage Systems (ISS) division of Sperry Univac, and OEM'd by DEC.

It was the first large drive to use the MASSBUS bus; thus, it did not have a specific device controller, but used the appropriate MASSBUS controller. A maximum of 8 drives were supported per controller.