On Thu, Dec 01, 2005 at 10:45:22PM -0700, Nicholas Leippe wrote: > > Any application that relies on the coherency of multiple, volatile files--ie > they correlate differently over time. > > - databases > - any application that produces temporary files (web server session > data, perhaps?) > > I'm sure there are others. > > This is the reason point-in-time backup systems are so expensive--it's a > very difficult problem to solve in a manner that is completely transparent > to running processes. >
The DM system in Linux can do a snapshot (I believe LVM has an interface to it). It's a very simple approach. -- Andrew McNabb http://www.mcnabbs.org/andrew/ PGP Fingerprint: 8A17 B57C 6879 1863 DE55 8012 AB4D 6098 8826 6868
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