Method and apparatus for the protection of write data in a disk

Details Method and apparatus for the protection of write data in a disk Method and apparatus for the protection of write data in a disk

1996-01-25

1997-01-21

Canney, Vincent P.

39518318, G06F 1300

Patent

active

055967086

ABSTRACT:
A transfer memory backup system for a RAID level 5 disk array storage system which includes a transfer buffer, wherein write data received by the array is written into a transfer buffer, and a write complete status signal generated, prior to the write data being written to the disk drives within the array. The transfer memory backup system includes a low power, industry standard PCMCIA (Personal Computer Memory Card International Association) device along with a small, temporary voltage source made up of a small rechargeable battery or a high capacitance gold capacitor. Upon the detection of a disk array storage system failure, low power logic provides continuous refresh for the transfer buffer as well as power to the components included in the transfer memory backup system upon a disk array storage system failure. A low power CMOS microprocessor with self contained microcode (mask programmable ROM) controls the transfer of data from the transfer buffer to removable storage medium within the PCMCIA device.

REFERENCES:
patent: 3801963 (1974-04-01), Chen et al.
patent: 4603406 (1986-07-01), Miyazaki et al.
patent: 4654829 (1987-03-01), Jiang et al.
patent: 4669066 (1987-05-01), Kagawa et al.
patent: 4868832 (1989-09-01), Marrington et al.
patent: 4985870 (1991-01-01), Faraci
patent: 5016223 (1991-05-01), Kimura et al.
patent: 5226006 (1993-07-01), Wang et al.
patent: 5243575 (1993-09-01), Sambandan et al.
patent: 5263003 (1993-11-01), Cowles et al.
patent: 5267218 (1993-11-01), Elbert
patent: 5379417 (1995-01-01), Lui et al.
patent: 5418921 (1995-05-01), Cortney et al.

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