[cobalt-developers] Re: Ideal backup method

[Bruce Timberlake <bruce@xxxxxxxxxx>]

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> Sounds a bit scary to me... If you're hacked on the 30th, you have
> to go all the way back to the first of the month?

No, I don't think so. Using rsync to send file 'diffs' each day, 
you're making a new 'copy' (updating the remote copy) of any local 
files which have changed since the day before (or since whenever the 
'remote' copy was created).

The downside to this is that if you _are_ using the same 'target' 
directory to send your backups to (or compare 'local' files to for 
diff-ing purposes), you don't have multiple discrete versions of each 
file (like with a traditional rotated backup).  The remote version 
will either the same as the local version (post-synch), or is only 
different by the 'diff' between the two (pre-synch).

So you would have the potential to 'infect' or break the 'remote' file 
copy if you didn't notice a problem with the local file copy before 
the scheduled backup/synch happened.

- -- 
Bruce Timberlake

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