RAID apparatus and logical device expansion method thereof

Details RAID apparatus and logical device expansion method thereof RAID apparatus and logical device expansion method thereof

2006-10-24

2006-10-24

Padmanabhan, Mano (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S113000, C711S154000, C711S170000, C714S006130

Reexamination Certificate

active

07127557

ABSTRACT:
A RAID device changes the redundancy of the RAID configuration, while allows various RAID level conversions and capacity increase. Using new and old RAID configuration definition information which define at least a RAID level and a number of logical devices, the control unit performs RLU mapping based on the respective RAID configuration definition information, and performs staging and write back to change the RAID configuration. Therefore various RAID level conversions and capacity increase can be implemented.

REFERENCES:
patent: 6347359 (2002-02-01), Smith et al.
patent: 2002/0178328 (2002-11-01), Honda et al.
patent: 7-306758 (1995-11-01), None
patent: 8-190461 (1996-07-01), None
patent: 10-260788 (1998-09-01), None

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