>>>>> "wcooley" == wcooley  <[email protected]> writes:

wcooley> The problem with keeping this data in a traditional VCS like
wcooley> Subversion is that I don't actually need all of those revisions. I
wcooley> really need hourly dumps for the last few days for roll-back
wcooley> purposes. It is sometimes nice to have a daily or weekly dump to use
wcooley> for data-mining purposes, to answer questions like, "When did we
wcooley> start setting this attribute like this?" or "At what rate has our
wcooley> mailbox list grown?" Having snapshots every 5 minutes for a couple
wcooley> hours wouldn't be bad either, but it's not really feasible if they
wcooley> exist forever. If you think of the way rrdtool maintains numerical
wcooley> time-series data, then the idea should seem pretty familiar.

Sounds like you want the "make backups using rsync" tool that was described at
Advanced PLUG a few years ago.  Can't recall the name though.

Generally, my rule of thumb to keep me out of trouble is that if a snapshot is
triggered by a human because a logical change has happened, a version control
system is appropriate.  But if a snapshot is triggered by a time passing, then
a version control system is *not* appropriate, and I should be looking at a
backup solution instead.

-- 
Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095
<[email protected]> <URL:http://www.stonehenge.com/merlyn/>
Smalltalk/Perl/Unix consulting, Technical writing, Comedy, etc. etc.
See http://methodsandmessages.vox.com/ for Smalltalk and Seaside discussion

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