Apparatus and method to select a deduplication protocol for a data storage library
US8234444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2008 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | Apr 19, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1084
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method to select a deduplication protocol for a data storage library comprising a plurality of data storage devices configured as a RAID array, by establishing a normal deduplication protocol, a RAID failure deduplication protocol, and a multiple storage device failure deduplication protocol. The method receives host data comprising a plurality of interleaved data blocks. If the system is operating without any storage device failures, then the method processes the host data using the normal deduplication protocol. If the system is operating with a storage device failure, then the method processes the host data using the RAID failure deduplication protocol. If the system is operating with multiple storage device failures, then the method processes the host data using the multiple storage device failure deduplication protocol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.