Method and system for preventing data loss within disk-array...

Details Method and system for preventing data loss within disk-array... Method and system for preventing data loss within disk-array...

2006-06-06

2006-06-06

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S004110, C714S043000

Reexamination Certificate

active

07058850

ABSTRACT:
An additional communications link between two mass-storage devices containing LUNs of a mirrored-LUN pair, as well as incorporation of a fail-safe mass-storage-device-implemented retry protocol to facilitate non-drastic recovery from communications link failures within the controllers of the two mass-storage devices, prevents build-up of WRITE requests in cache and subsequent data loss due to multiple communications-link and host computer failures. The combination of the additional link and the retry protocol together ameliorates a deficiency in current LUN-mirroring implementations that often leads to data loss and inconsistent and unrecoverable databases.

REFERENCES:
patent: 6543001 (2003-04-01), LeCrone et al.
patent: 6587970 (2003-07-01), Wang et al.
patent: 6691245 (2004-02-01), DeKoning
patent: 6728898 (2004-04-01), Tremblay et al.
patent: 6785678 (2004-08-01), Price
patent: 6816951 (2004-11-01), Kimura et al.
patent: 2002/0099916 (2002-07-01), Ohran et al.

Affiliated with

Also associated with

Rating

Method and system for preventing data loss within disk-array... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system for preventing data loss within disk-array..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for preventing data loss within disk-array... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3673696