Data processing system and storage area allocation method...

Details Data processing system and storage area allocation method... Data processing system and storage area allocation method...

2008-05-16

2011-10-25

Song, Jasmine (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S100000

Reexamination Certificate

active

08046535

ABSTRACT:
When creating a storage pool with external volumes, it is not possible to put together the volumes that have the same level of reliability if consideration is only given to the physical attributes of such volumes. Further, the reliability demanded between a host computer and a storage apparatus does not necessarily match the reliability between storage apparatuses. When creating a storage pool in the data processing system of this invention, not only is consideration given to the characteristics of the physical disks themselves, consideration is also given to the connection status of the backend network between a storage apparatus and a switch loaded with external storage function, and an external storage apparatus. What is more, volumes are allocated to a host machine after said system considers both the redundancy of a backend network of between storage apparatuses and that of a network path between the host machine and storage apparatus.

REFERENCES:
patent: 2004/0225662 (2004-11-01), Nojima
patent: 2005/0091455 (2005-04-01), Kano et al.
patent: 2007/0055713 (2007-03-01), Nagai et al.
patent: 2007/0168598 (2007-07-01), Yamamoto et al.
patent: 2003-015915 (2001-07-01), None
patent: 2004-334561 (2003-05-01), None
patent: 2005-011277 (2003-06-01), None
patent: 2007-066259 (2005-09-01), None

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