Lisa Moses. TOPS-20 User's manual. USC/Information Sciences Institute, Internal manual, Marina del Rey, California. Home/Search Document Not in Database Summary Related Articles Check |
This paper is cited in the following contexts:
Deciding when to forget in the Elephant file system - Santry, Feeley.. (1999) (49 citations) (Correct)
....run. Some partial solutions and coping mechanisms do exist, but none adequately solves the problem. Some early file systems such as Cedar provided a degree of protectionfrom accidental overwrite, but not delete, by automatically retaining the last few versions of a file in copyon write fashion [20, 1, 13]. Limited storage space, however, meant that only a few versions could be retained. The choice of which version to prune was either left to the user or the oldest versions were deleted. In either case, valuable file versions could easily be lost. Personal computer operating systems provide a ....
.... of versioned files was first proposed for the Cedar file system from Xerox PARC [20, 4] In Cedar, files were immutable; writing to a file produced a new version of the file and file names included a version number (e.g. filename 10) A similar idea was found in the RSX, VMS [1] and TOPS 10 20 [13] operating systems from Digital. The approach taken by these systems has two key limitations. First, the maximum number of file versions retained by the system was assigned as a per file parameter; when this threshold was reached, the oldest version was deleted. However, the deletion of the oldest ....
Lisa Moses. TOPS-20 User's manual. USC/Information Sciences Institute, Internal manual, Marina del Rey, California.
Elephant: The File System that Never Forgets - Douglas Santry (1999) (10 citations) (Correct)
.... of versioned files was first proposed for the Cedar file system from Xerox PARC [10] In Cedar, files were immutable; writing to a file produced a new version of the file and file names included a version number (e.g. filename 10) A similar idea was found in the RSX, VMS [2] and TOPS 10 20 [6] operating systems from Digital. The approach taken by these systems has two key limitations. First, the maximum number of file versions retained by the system was assigned as a per file parameter; when this threshold was reached, the oldest version was deleted. However, the deletion of the oldest ....
L. Moses. TOPS-20 User's manual. USC/Information Sciences Institute, Internal manual, Marina del Rey, California.
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