Raid controller and control method thereof

Details Raid controller and control method thereof Raid controller and control method thereof

2005-02-01

2005-02-01

Sparks, Donald (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S162000, C711S170000

Reexamination Certificate

active

06851022

ABSTRACT:
A RAID controller accesses an access request area on logical volumes distributed and stored on a plurality of physical disks according to a disk access request from a host. The controller has a plurality of management modules which are in-charge of plurality of the redundant groups respectively and issuing a logical format request for each area of said logical volume by referring to a management table for managing progress information of the logical format processing. Each management module has a plurality of the management table for being in-charge of said plurality of redundant groups and a queue for queuing the disk access request. The management module, according to the disk access request, judges whether all the access request areas have been logically formatted referring to the management table.

REFERENCES:
patent: 5802028 (1998-09-01), Igarashi
patent: 6681291 (2004-01-01), Ikeuchi et al.
patent: 11-143646 (1999-05-01), None

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