Redundant computer system which boots one system as the primary

Details Redundant computer system which boots one system as the primary Redundant computer system which boots one system as the primary

1995-03-10

1996-07-09

Geokil, Mehmet B.

Boots, shoes, and leggings

395180, 395700, 395570, 39518204, 364DIG1, 3642304, 3642463, G06F 1500, G06F 1576, G06F 9445

Patent

active

055354114

ABSTRACT:
A high-availability computer system comprises at least two processors, each having its own private disk drive, and a shared disk drive, accessible by both processors. Each of the private disk drives holds system files for establishing a processor as a secondary processor, and the shared disk drive holds system files for establishing a processor as a primary processor. When it boots up, each processor decides whether to use the system files from its private disk so as to become a secondary, or to use the system files from the shared disk so as to become the primary. As as result, after a system failure or reboot, either processor can pick up the characteristics of the the primary processor, and will have all the most up-to-date primary information available to it.

REFERENCES:
patent: H696 (1989-10-01), Davidson
patent: 4371929 (1983-02-01), Brann et al.
patent: 5247659 (1993-09-01), Curran et al.
patent: 5327553 (1994-07-01), Jewett et al.
patent: 5379431 (1995-01-01), Lemon et al.

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