On Sun, 27 Sep 2009 17:14:42 +0000, Andrew Gideon wrote:
> I was thinking that an alternative to links, which do nothing to
> preserve space when small file changes have been made, would be using
> LVM snapshots. Instead of creating a new directory for a new backup,
> and specifying --link-dest to the previous directory, I'd create a
> snapshot of the current backup volume to preserve it, and then do a
> normal (ie. w/ o --link-dest) rsync to the "live" volume for the new
> backup.
I've been thinking a little more about this. It assumes that --inplace
actually does what it sounds like it does: it modifies only the disk
pages of a file that have changed, as opposed to changing the entire file
or creating a new file or some other thing which causes the file to
"move" on disk.
Does --inplace do what it sounds like? I was reading a dialog from 2004
which claimed that adding this to rsync would be tough.
The --update option is also useful in this regard? What would happen if
--inplace were used but --update were not?
Thanks...
Andrew
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