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Changes between Initial Version and Version 1 of Ticket #2035, comment 10

initial	v1
1	1	The backupdb is a performance hack to avoid the latency cost of asking servers whether each file exists on the grid. If the latter were fast enough (which would probably require batching requests for multiple files), then it wouldn't be needed. ({{{tahoe backup}}} probabilistically checks some files on each run even if they are present in the backupdb, but I don't think that particularly helps.)
2	2
3		In the meantime, how about adding a {{{--repair}}} option to {{{tahoe backup}}}, which would bypass the backupdb and upload/repair every file?
	3	In the meantime, how about adding a {{{--repair}}} option to {{{tahoe backup}}}, which would bypass the backupdb-based conditional upload and upload/repair every file?