Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2011-01-04
2011-01-04
Baderman, Scott T (Department: 2114)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S005110, C711S162000, C710S038000
Reexamination Certificate
active
07865767
ABSTRACT:
A storage system of the present invention carries out remote copying among a plurality of sites, detects a new copy path when a failure occurs, and resumes remote copying. The storage system comprises a plurality of sites. Each site comprises a host and a storage controller. The controller of each site comprises a copy controller, a failure detector, a candidate detector, and a resume controller. The failure detector detects a failure that occurs in a remote copy configuration. The candidate detector detects a candidate for a copy path. The resume controller resumes remote copying using any one copy path from among copy path candidates detected in the respective sites.
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Honda Yoshihisa
Miki Kenichi
Shoji Tomoki
Baderman Scott T
Brundidge & Stanger, P.C.
Hitachi , Ltd.
Ko Chae
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