COMPUTER SYSTEM AND STORAGE DEVICE

WIPO Patent Application WO/2016/075779

A1

A computer system that is composed of a host computer, a storage device and a management computer. The storage device comprises a port for connecting with the host computer, a cache memory, a processor, and a plurality of logic volumes which are logical memory regions. For each logic volume, the port, the cache memory and the processor are divided into logic partitions, as resources that are used for reading and writing in the logic volume. The host computer reads and writes with respect to the logic volumes. If a failure occurs in the storage device, the management computer issues a command to the storage device to allocate the resources of a logic partition for which reading/writing performance is not ensured to a logic partition for which reading/writing performance is ensured.

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SAKANIWA HIDENORI (JP)
OKADA WATARU (JP)
OHIRA YOSHINORI (JP)
AKAGAWA ETSUTAROU (JP)
MAKI NOBUHIRO (JP)
MORIGUCHI MIOKO (JP)

PCT/JP2014/079986

May 19, 2016

November 12, 2014

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HITACHI LTD (JP)

G06F3/06

WO2011108027A1

2011-09-09

JP2004246852A	2004-09-02
JP2012221340A	2012-11-12
JP2006285808A	2006-10-19

SEIRYO I. P. C. (JP)
青稜 patent business corporation (JP)

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