RA73 disk drive
|Drive Controller(s):||all SDI controllers|
|Capacity:||2,000 Mbytes (formatted)|
|Total Surfaces:||21 data, 1 servo|
|Number of Heads:|| 21 data,|
The RA72 disk drive is a Standard Disk Interconnect non-removable-media disk drive from DEC. Unlike almost all the other RA-series drives, it is a compact width - 5.25 inches wide. It has no internal power supply; it gets its power from the host system, or its SA7x enclosure.
Its capacity was 2,000 Mbytes (formatted). It was internally operated by a microprocessor.
- RA7x Disk Drive Service Manual (EK–ORA7X-SM) - not available online
- RA7x/SA7x Pocket Reference Guide (EK–RSA7X–PG–002)