Fujitsu Eagle

The M2351A "Eagle" (also known as the Eagle-1) was a Winchester-stye hard disk drive manufactured by Fujitsu with an SMD interface that was used on many servers in the mid-1980s.

The data density, access speed, reliability, use of a standard interface, and price point combined to make it a very popular product used by many system manufacturers, such as Sun Microsystems.

The drives had a rated component lifetime of 5 years, with 10,000 hours MTBF and only 30 minutes mean time to repair when being serviced.

In 1985, M2361 and M2361A "SuperEagle" or "Eagle-1.5" models were released, which were very similar externally (same height and width but slightly deeper at 30.3 inches (770 mm)), but with greater capacity and transfer speed.

While still using the same platter and head layout, they used RLL encoding, spun at 3600 RPM, and weighed slightly more at 179 pounds[convert: unknown unit], and had a redesigned power supply.