Relocation system and a relocation method

Details Relocation system and a relocation method Relocation system and a relocation method

2007-01-19

2011-11-29

Rojas, Midys (Department: 2185)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S006000, C711S154000, C711S158000, C711S170000, C711S171000, C711S172000, C711S204000, C711SE12002, C710S020000, C710S021000, C710S031000, C710S033000, C710S057000, C710S060000

Reexamination Certificate

active

08069326

ABSTRACT:
Provided are a relocation system and a relocation method capable of relocating a virtual volume that is formed based on thin provisioning while ensuring security against exhaustion of pools. A database stores attribute information for pools and virtual volumes for thin provisioning that exist in a storage device as well as parameters for predicting time period till exhaustion of the pools. When a virtual volume is to be relocated between a plurality of pools, a relocation control section predicts time periods till exhaustion of the pools before and after relocation based on information in the database and determines the relocation is possible or not based on the result of prediction or determines an appropriate relocation plan. This enables control of relocation of virtual volumes.

REFERENCES:
patent: 7096338 (2006-08-01), Takahashi et al.
patent: 2006/0242376 (2006-10-01), Tsuge et al.
patent: 2007/0050588 (2007-03-01), Tabata et al.
patent: 2010/0042797 (2010-02-01), Asano et al.
patent: 2006-99748 (2006-04-01), None
patent: 2006-302077 (2006-11-01), None

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