US Patent 11392456 Calculating parity as a data stripe is modified
Patent 11392456 was granted and assigned to Pure Storage on July, 2022 by the United States Patent and Trademark Office.
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US Patent 11392456 Calculating parity as a data stripe is modified
Methods for RAID stripe update parity calculation are disclosed. The methods include: receiving a first portion of data of a RAID stripe for writing to a first memory location of a plurality of solid state drives. A first parity value for the first portion of data of the RAID stripe is calculated. The methods include receiving a second portion of data of the RAID stripe for writing to a second memory location that is different from the first memory location. A second parity value is calculated based upon the second portion of the data and the first parity value Based on successfully writing the second portion of data of the RAID stripe, the first parity value is replaced with the second parity value.
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