Solid state disk drive unit having on-board backup non-volatile

Details Solid state disk drive unit having on-board backup non-volatile Solid state disk drive unit having on-board backup non-volatile

1993-09-30

1996-07-09

Rudolph, Rebecca L.

39518204, 395471, 395431, G06F 1200

Patent

active

055353991

ABSTRACT:
Disclosed is a solid state disk drive, including a volatile, electronic RAM, memory and a non volatile, magnetic disk. The drive continuously saves unique data stored in the memory back to the disk. Additionally, the drive includes a number of tables and bit fields, in both volatile electronic memory and disk, for generally keeping track of what data has been restored from disk to memory, what data in the memory has been modified since it was restored from disk, and what modified data in the memory has been saved back to disk. In the event of a primary power outage, the drive first saves the volatile tables onto disk, and then saves the volatile, modified data onto disk, while using auxiliary power. If, however, auxiliary power is lost before any or all of the modified data is saved on disk, the saved tables provide information which enables the drive to distinguish the valid from the invalid data on disk.

REFERENCES:
patent: 4394732 (1983-07-01), Swenson
patent: 4506323 (1985-03-01), Pusic et al.
patent: 4811203 (1989-03-01), Hamstra
patent: 5034915 (1991-07-01), Sturna et al.
patent: 5197026 (1993-03-01), Butler
patent: 5379415 (1995-01-01), Papenberg et al.
patent: 5396637 (1995-03-01), Harwell et al.
patent: 5418925 (1995-05-01), DeMoss et al.
Amaru, Christopher, "Solid-state SCSI--affordable luxury." Digital Review, v. 9, N. 13 p. 27(2), Jul. 13, 1992.
Chen, Peter M. et al, "Storage Performance--Metrics and Benchmarks." Proc. of the IEEE, Aug. 1993, v. 81, Issue 8, pp. 1151-1165.

Affiliated with

Also associated with

Rating

Solid state disk drive unit having on-board backup non-volatile does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Solid state disk drive unit having on-board backup non-volatile , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solid state disk drive unit having on-board backup non-volatile will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1876581