Grouped-object RAID

Details Grouped-object RAID Grouped-object RAID

2006-08-29

2006-08-29

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C711S114000

Reexamination Certificate

active

07100073

ABSTRACT:
A RAID-configured grouped-object storage system provides reduced storage space overhead for small objects. The storage system includes a plurality stripes arranged across a plurality of physical objects. Each stripe includes a plurality of storage blocks that are each mapped on to a respectively different physical object. The storage system also includes a plurality of virtual objects each containing at least one storage block. A group of virtual objects is formed when a virtual object contains less storage blocks than the number of stripes by associating the virtual object with at least one virtual object containing less storage blocks than the number of stripes and/or at least one storage block containing zero values so that the storage blocks of each group of virtual objects equals the number of stripes. The storage blocks of each virtual object and of each group of virtual objects are mapped to a respectively different stripe.

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