Invention Grant
US08478938B2 Performing data writes in parity protected redundant storage arrays
失效
在奇偶校验保护的冗余存储阵列中执行数据写入
- Patent Title: Performing data writes in parity protected redundant storage arrays
- Patent Title (中): 在奇偶校验保护的冗余存储阵列中执行数据写入
-
Application No.: US12914458Application Date: 2010-10-28
-
Publication No.: US08478938B2Publication Date: 2013-07-02
- Inventor: Kapil Sundrani
- Applicant: Kapil Sundrani
- Applicant Address: US CA Milpitas
- Assignee: LSI Corporation
- Current Assignee: LSI Corporation
- Current Assignee Address: US CA Milpitas
- Agency: Suiter Swantz pc llo
- Main IPC: G06F13/00
- IPC: G06F13/00 ; G06F13/26

Abstract:
A first and a second physical disk identifier, a physical Logical Block Address (LBA), a data length, and a span identifier are calculated from a data write operation. A first request command frame is created for retrieving the existing data block from the storage array, the first request command frame including at least one of the calculated parameters. At least one second request command frame is created for retrieving the at least one existing parity data block from the storage array, the at least one second request command frame including the calculated at least one second physical disk identifier and at least one of the calculated parameters. At least one new parity data block is calculated utilizing the existing data block, the new data block, and the at least one existing parity data block.
Public/Granted literature
- US20120110377A1 PERFORMING DATA WRITES IN PARITY PROTECTED REDUNDANT STORAGE ARRAYS Public/Granted day:2012-05-03
Information query