Storage system logical storage area allocating method and...

Details Storage system logical storage area allocating method and... Storage system logical storage area allocating method and...

2008-11-10

2011-10-11

Portka, Gary (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Memory configuring

C711S114000

Reexamination Certificate

active

08037273

ABSTRACT:
A method for allocating optimum pages to a logical volume according to the usage of the logical volume and an access characteristic is provided. A storage system is connected to a host computer, includes plural disk drives and a controller to control the plural disk drives, includes a first disk drive group including at least one disk drive, holds information indicating that a first attribute is assigned to a logical volume, assigns the first attribute when a first logical volume including plural first logical storage areas is provided to the host computer, reserves plural physical storage areas of the first disk drive group as the plural first logical storage areas, reserves the plural first logical storage areas included in the first logical volume as storage areas for storing data requested by the host computer, and stores the data requested by the host computer into the allocated physical storage areas.

REFERENCES:
patent: 2005/0065961 (2005-03-01), Aguren
patent: 2005/0091455 (2005-04-01), Kano et al.
patent: 2007/0180294 (2007-08-01), Kameyama et al.
patent: 2007/0266216 (2007-11-01), Arakawa et al.
patent: 2009/0157756 (2009-06-01), Sanvido
patent: 2003-015915 (2003-01-01), None

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