Redundant array of encrypting disks
US8799681B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2008 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Feb 7, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2107
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
By placing an encryption function below a RAID function and requiring independence of encryption functionality along the same boundaries of data member independence of the RAID function, failures of the encryption and key management for individual encryption functions can be recovered with the same data rebuild mechanism as the RAID function. For example, in a RAID set of disk drives, each data partition and each parity partition has a respective data encryption key for storing encrypted data or encrypted parity in the partition, and a LUN or logical volume is mapped to a stripe of data partitions and an associated parity partition across the RAID set so that the data rebuild mechanism of the RAID function may recover from a loss of a single data encryption key without compromising security of the LUN or logical volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.