Capacity expansion volume migration method

Details Capacity expansion volume migration method Capacity expansion volume migration method

2006-06-05

2008-12-16

Shah, Sanjiv (Department: 2185)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S002000, C711S170000, C711S173000

Reexamination Certificate

active

07467275

ABSTRACT:
A common external storage device is connected to the first and second storage systems. The management computer comprises a capacity expansion volume migration section that migrates a capacity-expansion volume that the first storage system comprises to the second storage system; a host connection path switching section that switches the host connection path being used from a first host connection path that links a migration source capacity-expansion volume and the host computer to a second host connection path that links a migration destination capacity-expansion volume and the host computer; and an external connection path switching section that switches the external connection path being used from a first external connection path that links a storage area allocated to the migration source capacity-expansion volume and the external storage device to a second external connection path that links a storage area that is allocated to the migration destination capacity-expansion volume and the external storage device.

REFERENCES:
patent: 5488708 (1996-01-01), Hayashi
patent: 2003/0009619 (2003-01-01), Kano et al.
patent: 2003/0221063 (2003-11-01), Eguchi et al.
patent: 2003-015915 (2003-01-01), None
patent: 2003-345522 (2003-12-01), None

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