RA60 Disk Drive: Difference between revisions
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Changed link to SDI controllers, and added citation |
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| manufacturer = [[Digital Equipment Corporation]] | | manufacturer = [[Digital Equipment Corporation]] | ||
| year introduced = 1982 | | year introduced = 1982 | ||
| controller = | | controller = [[Standard Disk Interconnect#SDI Family of DSA Products|all SDI controllers]]| capacity = 205 Mbytes (formatted) | ||
| capacity = 205 Mbytes (formatted) | |||
| transfer rate = 1.3 Mbytes/sec | | transfer rate = 1.3 Mbytes/sec | ||
| average access time = 50 msec | | average access time = 50 msec | ||
| Line 11: | Line 10: | ||
| average seek = 41.7 msec | | average seek = 41.7 msec | ||
}} | }} | ||
Citation from the combined DEC RA60/RA80/RA81 1982 sales brochure: | |||
''RA60 Disk - The Removable Media Solution <br>The RA60 is the industry's highest capacity and lowest price-per-megabyte rack mounted, removable media disk. With 205 megabytes of user formatted capacity, 615 megabytes are available in a 42-inch high cabinet - 50% more than any other removable media product. The RA60 provides 205 megabytes of removable media flexibility for $15,000.'' | |||
[[Image:open ra60.jpg|thumb|200px|right|An open RA60]] | [[Image:open ra60.jpg|thumb|200px|right|An open RA60]] | ||
= 4.3 BSD disktab = | = 4.3 BSD disktab = | ||
Revision as of 06:38, 15 August 2023
| RA60 | |
| Manufacturer: | Digital Equipment Corporation |
|---|---|
| Year Introduced: | 1982 |
| Drive Controller(s): | all SDI controllers |
| Capacity: | 205 Mbytes (formatted) |
| Transfer Rate: | 1.3 Mbytes/sec |
| Average Access Time: | 50 msec |
| Revolutions per Minute: | 3600 1/min |
| One Track Seek Time: | 6.7 msec |
| Average Seek Time: | 41.7 msec |
Citation from the combined DEC RA60/RA80/RA81 1982 sales brochure:
RA60 Disk - The Removable Media Solution
The RA60 is the industry's highest capacity and lowest price-per-megabyte rack mounted, removable media disk. With 205 megabytes of user formatted capacity, 615 megabytes are available in a 42-inch high cabinet - 50% more than any other removable media product. The RA60 provides 205 megabytes of removable media flexibility for $15,000.
4.3 BSD disktab
ra60|RA60|DEC RA60 Removable:\
:ty=removable:ns#42:nt#4:nc#2382:\
:pa#15884:ba#8192:fa#1024:\
:pb#33440:pc#400176:\
:pg#82080:bg#4096:fg#512:\
:ph#268772:bh#4096:fh#1024:
