RA80

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RA 80

121 MB SDI HD

This physically large drive (14-inch platters, in a heavy enclosure 10.5" x 16" x 36") 1.2 MB/s peak transfer rate; 33.3 ms average access time; 25 ms average seek time; track-to-track seek time 6 ms; 8.33 ms latency; 3600 rpm; seven data and 1 servo disk surfaces; 1,092 tracks/surface; 31 sectors/track (16 bit words); 512 bytes/sector.

A combined RA80/RA81 sales brochure is now online @ archive.org.

4.3 BSD disktab

a80|RA80|DEC RA80 Winchester:\
    :ty=winchester:ns#31:nt#14:nc#559:\
    :pa#15884:ba#8192:fa#1024:\
    :pb#33440:pc#242606:\
    :pg#82080:bg#4096:fg#512:\
    :ph#111202:bh#4096:fh#1024: