Recovery Techniques for Database Systems
ACM Computing Surveys (CSUR)
End-to-end arguments in system design
ACM Transactions on Computer Systems (TOCS)
Pilot: an operating system for a personal computer
Communications of the ACM
A file system supporting cooperation between programs
SOSP '83 Proceedings of the ninth ACM symposium on Operating systems principles
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This thesis describes a design for an automatic backup mechanism to be incorporated in a computer utility for the protection of on-line information against accidental or malicious destruction. This protection is achieved by preserving on magnetic tape recent copies of all items of information known to the on-line file system. In the event of a system failure, file system damage is automatically assessed and missing information is recovered from backup storage. For isolated mishaps, users may directly request the retrieval of selected items of information. The design of the backup mechanism presented in this thesis is based upon existing backup mechanism contained in the Multics system. As compared to the present Multics backup system, the new design lessens overhead, drastically reduces recovery time from system failures, eliminates the need to interrupt system operation for backup purposes, and scales up significantly better with on-line storage growth.