SECURE DATA STORAGE IN RAID MEMORY DEVICES
First Claim
1. A redundant array of independent disk (RAID) memory storage system comprising data storage blocks arranged in said array in a first plurality of data rows and a second plurality of data columns, wherein parity data is stored in additionally defined parity blocks, and wherein numbers of blocks in respective columns are different.
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Abstract
A redundant array of independent disk (RAID) memory storage system comprising data storage blocks arranged in a first plurality of data rows and a second plurality of data columns, wherein parity data is stored in additionally defined parity blocks, and wherein numbers of data blocks in respective columns are different, to accommodate the additional diagonal parity data block that the geometry of the system requires. The system is suitable for an SSD array in which sequential disk readout is not required.
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Citations
28 Claims
- 1. A redundant array of independent disk (RAID) memory storage system comprising data storage blocks arranged in said array in a first plurality of data rows and a second plurality of data columns, wherein parity data is stored in additionally defined parity blocks, and wherein numbers of blocks in respective columns are different.
- 17. A redundant array of independent disk (RAID) memory storage method comprising storing data storage blocks arranged in a first plurality of data rows and a second plurality of data columns, and storing parity data in additionally defined parity blocks, said columns being arranged such that numbers of blocks in respective columns are different.
Specification