Data migration method for disk apparatus

Details Data migration method for disk apparatus Data migration method for disk apparatus

2007-03-05

2009-12-15

Park, Ilwoo (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output command process

C710S074000, C711S161000

Reexamination Certificate

active

07634588

ABSTRACT:
Data migration can be executed between new and old disk apparatuses without changing the disk definition of a host computer. A switch having the function of online data migration is provided between the host computer and the old disk apparatus, data are copied to the new disk apparatus while the disk apparatus is accessed continuously by the host computer. If a SCSI command for identifying disk apparatuses is issued by the host computer after data migration, the response of the old disk apparatus is sent back.

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