Raid system and mapping method thereof

Details Raid system and mapping method thereof Raid system and mapping method thereof

2005-05-31

2005-05-31

Padmanabhan, Mano (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S206000, C711S202000

Reexamination Certificate

active

06901478

ABSTRACT:
A system having RAID levels includes a storage medium, a memory and a CPU. The storage medium has at least two disks. The memory stores a striping zone information table of total disks in which a physical address of data recorded in a disk of the storage medium is converted into a logic address. The CPU modifies a striping zone information table stored in the memory in case a new disk is added to the storage medium, stores the modified striping zone information table in the memory, converts a logic address of data to be written/read out from the stored table into a physical address in response to the disk writing/reading instructions, searches positions of a corresponding disk D and a physical block B and controls writing or reading out data.

REFERENCES:
patent: 6052759 (2000-04-01), Stallmo et al.
patent: 6058489 (2000-05-01), Schultz et al.
patent: 6609176 (2003-08-01), Mizuno
patent: 6651154 (2003-11-01), Burton et al.
patent: 1999-51729 (1999-07-01), None
patent: 1999-53164 (1999-07-01), None

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