Primary-backup group with backup resources failover handler

Details Primary-backup group with backup resources failover handler Primary-backup group with backup resources failover handler

2006-10-03

2006-10-03

Mizrahi, Diane D. (Department: 2165)

Data processing: database and file management or data structures

Database design

Data structure types

Reexamination Certificate

active

07117213

ABSTRACT:
Failover processing that accommodates failures of backup computing nodes and resources, such as data storage units and printers. Failure of a computing node that controls resources causes another computing node to assume control of the resources controlled by the failed node. Failure of the primary computing node causes another computing node, at either the same or at a different site, to be selected as the new primary node. Failure of a resource at the primary site causes the site with the next highest priority backup resource to become the new primary site. Failure of a backup computing node causes a new backup node at the same site as the failed backup node to replace the failed backup node as host for the site's resources. Backup mirroring data flows are then adjusted to reflect the new functions of the affected nodes.

REFERENCES:
patent: 6594786 (2003-07-01), Connelly et al.
patent: 2003/0061132 (2003-03-01), Yu et al.
patent: 2003/0204539 (2003-10-01), Bergsten
Patent Application entitled “Join Protocol for a Primary-Backup Group With Backup Resources in Clustered Computer System,” filed on even date herewith by Robert Milleret al.

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