| 摘要 |
PROBLEM TO BE SOLVED: To migrate data between storage devices using storage media different in performance characteristics with each other. SOLUTION: The computer system comprises an old storage device, a new storage device, a management computer, a data network, and a management network. The management computer gathers logs at the old storage device. When data is moved from the old storage to the new storage, destination volume in the new storage device is allocated and concatenated using the gathered log information and a mapping table. The system and device simplifies migration processes from ordinary storage device 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 improved performance of the overall storage system. COPYRIGHT: (C)2008,JPO&INPIT
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