Method and system for migrating data

Details Method and system for migrating data Method and system for migrating data

2005-07-26

2005-07-26

McLean-Mayo, Kimberly (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S112000, C711S100000, C709S218000, C709S221000

Reexamination Certificate

active

06922761

ABSTRACT:
Data is migrated from an original host storage system to another replacement host storage system with minimal client impact on a network. An original host storage system is connected directly to the replacement host storage system which is in turn connected to the network. Data migration occurs while allowing a client to access data in the original host storage system. When access is requested, the replacement host storage system determines if it resides locally or in the original host storage system. Depending on where the data resides, either the replacement host storage system acts on it or obtains it from the original host storage system.

REFERENCES:
patent: 6266679 (2001-07-01), Szalwinski et al.
patent: 6442601 (2002-08-01), Gampper et al.
patent: 6473767 (2002-10-01), Bailey et al.
patent: 6745241 (2004-06-01), French et al.
patent: 2002/0152194 (2002-10-01), Sathyanarayan

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