Difference between revisions of "RP04 disk drive"
From Computer History Wiki
m (Jnc moved page RP04 to RP04 disk drive: canonical naming system) |
m (Mod infobox to use simple param names) |
||
| Line 5: | Line 5: | ||
| controller = [[RH11 MASSBUS controller|RH11]] ([[UNIBUS]]) | | controller = [[RH11 MASSBUS controller|RH11]] ([[UNIBUS]]) | ||
<!-- | average access time = 70 msec --> | <!-- | average access time = 70 msec --> | ||
| + | | transfer rate = 2.5 usec/word | ||
| rpm = 3600 | | rpm = 3600 | ||
| revolution time = 8.3 msec | | revolution time = 8.3 msec | ||
| Line 11: | Line 12: | ||
| maximum seek = 50 msec | | maximum seek = 50 msec | ||
| surfaces = 19 | | surfaces = 19 | ||
| − | | tracks | + | | tracks = 411 |
| − | | sectors | + | | sectors = 22 |
| words per sector = 256 | | words per sector = 256 | ||
<!-- | 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]] | ||
| − | |||
| 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 | ||
| − | | power consumption = 660 VA per phase (running); 3300 VA per phase(starting, 10 seconds max) | + | | power consumption = 660 VA per phase (running); 3300 VA per phase (starting, 10 seconds max) |
}} | }} | ||
Revision as of 21:08, 2 October 2017
| RP04 | |
| Drive Controller(s): | RH11 (UNIBUS) |
|---|---|
| Capacity: | 88 Mbytes |
| Transfer Rate: | 2.5 usec/word |
| 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 |
| 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 RP02 and RP03 multi-platter large disk drives. It used a pack compatible with the IBM 3336 pack, used on the IBM 3330 drive.
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.
