Hot vs. Live Backups

Hi everybody,

I'm trying to understand the need for hot copies before backing up data.
  I believe I've read through the relevant documentation, but as I
understand it transaction commits are atomic, so it's impossible to back
up half a revision. On unversioned properties, I don't see confirmation
but I can't see any reason these wouldn't occur as part of a transaction
as well.

However, I see statements like this in the documentation:

"In the case of Berkeley DB, Sleepycat documents describe a certain
order in which database files can be copied that will guarantee a valid
backup copy. And a similar ordering exists for FSFS data."

If hot copies need to be done, fine, this is more what I expect (and
consistent with other services we back up, of course ;). I'd just like
to have a better understanding.

Apologies if this has been asked and answered, but I looked and none of
the questions about backups seem to answer this.

Thanks,
Drew.

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Received on Mon Sep 19 21:47:35 2005