A Flexible Persistent Architecture Permitting Trade-off Between Snapshot and Recovery Times
نویسندگان
چکیده
For persistent systems to be useful they must provide efficient snapshot and recovery mechanisms. This paper describes the design of the persistence architecture of the Grasshopper operating system which addresses these requirements. It shows how the major components of the architecture interact with one another and how it can be used to provide fast snapshot and recovery times. A novel feature of the architecture is the lazy recovery mechanism which delays the recovery of each component of the system until required.
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