Storage controller, storage control system and storage...

Details Storage controller, storage control system and storage... Storage controller, storage control system and storage...

2005-10-25

2008-08-26

Ellis, Kevin (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S161000, C711S165000, C714S005110, C714S006130

Reexamination Certificate

active

07418564

ABSTRACT:
The present invention provides a storage control technique that leaves no failure in a file system of a secondary volume even if the secondary volume is split from a primary volume with no restriction on server access to volumes in a storage controller. This invention provides a system including: a host system100; a storage controller101for performing data processing between a storage device and the host system in response to requests from the host system; and a management server130. The storage controller has a controller104that performs release processing to release mirroring between a primary volume102and a secondary volume103with access from the host system to the primary volume being permitted. The management server130executes a management program for examining volume management information about the secondary volume after the release processing.

REFERENCES:
patent: 2003/0093638 (2003-05-01), Margerie et al.
patent: 2004/0260901 (2004-12-01), Yamagami et al.
patent: 2006/0047930 (2006-03-01), Takahashi et al.
patent: 2000-330730 (2000-11-01), None
patent: 2004-019213 (2004-01-01), None

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