Storage system and path switching method

Details Storage system and path switching method Storage system and path switching method

2008-01-09

2010-11-09

Kim, Matt (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S162000, C711SE12001, C709S238000, C714S006130

Reexamination Certificate

active

07831781

ABSTRACT:
A storage system is characterized by including: a host apparatus for sending various requests and backup-target data; a virtualization apparatus including a volume that stores the data sent from the host apparatus and a virtual volume that stores replicated data for the data; and a virtual disk library apparatus having a controller apparatus that includes an actual volume for the virtual volume and a tape library apparatus having a tape that stores the replicated data stored in the actual volume, and is characterized in that the controller apparatus has a path switching unit for conducting switching, for a plurality of paths for transferring the data, between a path that connects the controller apparatus to the tape library apparatus and a path that connects the controller apparatus to the virtualization apparatus according to a request from the host apparatus.

REFERENCES:
patent: 6052341 (2000-04-01), Bingham et al.
patent: 2004/0098547 (2004-05-01), Ofek et al.
patent: 2004/0128456 (2004-07-01), Kobayashi et al.
patent: 2005/0033911 (2005-02-01), Kitamura et al.
patent: 2005/0102555 (2005-05-01), Matsumoto et al.
patent: 11-242570 (1998-02-01), None
patent: 2002-259063 (2001-03-01), None

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