High performance pooled hot spares

Details High performance pooled hot spares High performance pooled hot spares

2009-07-31

2011-12-27

Le, Dieu-Minh (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S006220

Reexamination Certificate

active

08086893

ABSTRACT:
A high-performance spare disk pool is created as a logical construct for provisioning and managing striped hot spares. Two or more drives (nonvolatile mass storage devices) are logically grouped together to allow the input/output (I/O) write bandwidth during RAID reconstruction to be increased over that of a single drive. The reconstructed data can be written to the spare disk pool in a striped manner. After the reconstruction is complete, a background process can be executed to copy the reconstructed data on the spare disk pool back to a single physical spare disk drive with minimal performance impact.

REFERENCES:
patent: 7120826 (2006-10-01), Fore et al.
patent: 2006/0107129 (2006-05-01), Franklin et al.
patent: 2008/0126839 (2008-05-01), Sangapu et al.
patent: 2008/0168225 (2008-07-01), O'Connor
patent: 2010/0050016 (2010-02-01), Franklin et al.

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