Storage control system and method

Details Storage control system and method Storage control system and method

2006-04-25

2006-04-25

Corrielus, Jean M. (Department: 2162)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000, C707S793000

Reexamination Certificate

active

07035883

ABSTRACT:
According to the present invention, each of a plurality of LUs existing on a storage control system200is divided into a plurality of chunks. A PVOL is comprised of only FC-chunks, but an SVOL is comprised of both FC-chunks and SATA-chunks. To each of the plurality of SVOL-chunks corresponding to the plurality of PVOL-chunks respectively, either an FC-chunk or SATA-chunk selected from a plurality of pool chunks is dynamically corresponded based on the update frequency of the sub-data of the corresponding PVOL chunk. Specifically, if an SVOL-SATA-chunk is corresponded to the PVOL-chunk of which the data update frequency is high, for example, the pool FC-chunk is corresponded as a sub-data swap destination in that SVOL-SATA-chunk.

REFERENCES:
patent: 5051887 (1991-09-01), Berger et al.
patent: 6032224 (2000-02-01), Blumenau
patent: 6446161 (2002-09-01), Yamamoto et al.
patent: 2004/0024964 (2004-02-01), Taninaka et al.
patent: 2004/0225697 (2004-11-01), Asano et al.

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