Computer system, management method and storage network system

Details Computer system, management method and storage network system Computer system, management method and storage network system

2011-05-17

2011-05-17

Bragdon, Reginald G (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711SE12103, C714S004110

Reexamination Certificate

active

07945753

ABSTRACT:
A computer system wherein, when a state of the primary host computer is in an active state, a data sent from the primary host computer to the first storage system is copied through a first copy route which includes a route from the first storage system to the second storage system and a route from the second storage system to the third storage system, wherein, if a failure occurs in the primary host computer and a state of the second host computer is to be in an active state, a data sent from the secondary host computer to the second storage system is copied through a second copy route which includes a route from the second storage system to the first storage system and a route from the first storage system to the third storage system.

REFERENCES:
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patent: 2001/0018692 (2001-08-01), Suginoshita et al.
patent: 2003/0051111 (2003-03-01), Nakano et al.
patent: 2004/0044649 (2004-03-01), Yamato et al.
patent: 2001-175681 (2001-06-01), None
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patent: 2004-086721 (2004-03-01), None
patent: 2004-185644 (2004-07-01), None

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