Method and apparatus for migrating data between storage...

Details Method and apparatus for migrating data between storage... Method and apparatus for migrating data between storage...

2006-07-27

2009-06-30

Tsai, Henry W. H. (Department: 2184)

Electrical computers and digital data processing systems: input/

Input/output data processing

Data transfer specifying

C711S103000

Reexamination Certificate

active

07555575

ABSTRACT:
The computer system is composed of an old storage apparatus, a new storage apparatus, management computer, data network and management network. Management computer gathers logs at the old storage apparatus. When data is moved from the old storage to the new storage, destination volume in the new storage apparatus is allocated and concatenated using the gathered log information and a mapping table. The system and apparatus simplifies migration processes from ordinary storage apparatus to the new storage device, which may include HDDs and FLASH memory units. The system takes into account the differences in performance characteristics of HDDs and FLASH memories, achieving improver performance of the overall storage system.

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