> > It seems like the appropriate solution would be to
> have a tool that
> > allows removing a file from one or more snapshots
> at the same time as
> > removing the source ... 
> 
> That would make them not really snapshots.  And such
> a tool would have
> to "fix" clones too.

While I concur that being able to remove files from snapshots is somewhat 
against the concept behind snapshots, I feel that there is a tradeoff here for 
the administrator:

Let's say we accidentally snapshotted a very large temporary file. We don't 
need the file and we don't need its snapshot. Yet the only way to free the 
space taken up by this accidentally snapshotted file is to delete the WHOLE 
snapshot, including all the files of which snapshots may be required. To 
paraphrase: that would make this snapshot not really a snapshot ANYMORE.

At this point having a separate tool that allows you to do "spring cleaning" 
and deleting files from snapshots would quite possibly be more in the spirit of 
snapshotting than having to delete snapshots.

Just my $.02,

  Rudolf
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