18907780. Updating RAID Protection Based on Storage System Characteristics (PURE STORAGE, INC.)
Updating RAID Protection Based on Storage System Characteristics
Organization Name
Inventor(s)
JOHN Colgrove of LOS ALTOS CA US
JOHN Hayes of MOUNTAIN VIEW CA US
ETHAN Miller of SANTA CRUZ CA US
Updating RAID Protection Based on Storage System Characteristics
This abstract first appeared for US patent application 18907780 titled 'Updating RAID Protection Based on Storage System Characteristics
Original Abstract Submitted
A system, method, and product for flexible RAID layouts in a storage system, including: determining a reliability of an individual storage device of a plurality of storage devices, the individual storage device containing a plurality of portions of a Redundant Array of Independent Disks (RAID) stripe in a storage system, wherein the RAID stripe includes user data and inter-device parity data; detecting a change in the reliability of the individual storage device that contains the portion corresponding to the RAID stripe; and changing an amount of intra-device protection corresponding to the RAID stripe by decreasing, in the RAID stripe, an amount of space used to store the inter-device protection data.
