Synchronization of shared data stores through use of non-empty t

Details Synchronization of shared data stores through use of non-empty t Synchronization of shared data stores through use of non-empty t

1998-01-05

2000-06-06

Lane, Jack A.

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

707204, G06F 1206

Patent

active

060732210

ABSTRACT:
Copies of data that are stored on tracks of a primary disk volume and a backup disk volume are synchronized by a method which reduces the amount of data that is transferred. The primary disk volume includes tracks with current data (i.e., non-empty tracks) and tracks with no current data (i.e., empty tracks). The method transfers to the backup disk volume only data from non-empty tracks on the primary disk volume and then writes the data onto tracks in the backup disk volume that correspond to the non-empty tracks of the primary disk volume. Prior to writing of the data onto the backup disk volume, it is preferred that the backup disk volume have all tracks erased so that after the write action, only the tracks with current data have data written therein. Further, at the primary disk volume, only tracks having current data are read. Accordingly, substantial savings in processing and data transfer times are achieved.

REFERENCES:
patent: 4521871 (1985-06-01), Galdun et al.
patent: 5101492 (1992-03-01), Schultz et al.
patent: 5155845 (1992-10-01), Beal et al.
patent: 5239637 (1993-08-01), Davis et al.
patent: 5274807 (1993-12-01), Hoshen et al.
patent: 5504861 (1996-04-01), Crockett et al.
patent: 5515502 (1996-05-01), Wood
patent: 5615329 (1997-03-01), Kern et al.
patent: 5742792 (1998-04-01), Yanai et al.
patent: 5829023 (1998-10-01), Bishop
patent: 5835953 (1998-11-01), Ohran
patent: 5930824 (1999-07-01), Anglin et al.

Affiliated with

Also associated with

Rating

Synchronization of shared data stores through use of non-empty t does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Synchronization of shared data stores through use of non-empty t, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synchronization of shared data stores through use of non-empty t will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2223957