Device for control of switching of storage system

Details Device for control of switching of storage system Device for control of switching of storage system

2011-05-24

2011-05-24

Duncan, Marc (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S006130

Reexamination Certificate

active

07949896

ABSTRACT:
A storage system includes a controller that controls switching from a system before switching to a system after switching. The controller includes a check unit that checks whether a connection between the system before switching and the system after switching is enabled, or not, a determination unit that determines whether switching from the system before switching to the system after switching is enabled, or not, a fail-over information migration unit that migrates fail-over information included in the system before switching to the system after switching, a user data migration unit that migrates user data in the system before switching to the system after switching, and a switching execution unit that enables the system after switching to receive I/O from a host.

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