[ZODB-Dev] Backing up a ZODB

[Peter Schüller]

Hello,

I've been reading quite a lot about Zope and ZODB in the past few days; and 
while it all seems like a very robust solution, I have seen no references in 
the docs on backing up a ZODB database.

I've been asking around a bit on #zope and the most promising I've heard so 
far is copying Data.fs and basically hoping for the best; using a recovery 
tool afterwards. The idea being that it will work because filestorage just 
appends pickels.

But what about packing? If the database is undergoing packing, surely this 
would break things.

Is there any way of making a hot backup of a ZODB - that is algorithmically 
guaranteed to yield a consistent snapshot of the database - without shutting 
down the database for the procedure?

If not, what do major sites do about the problem?

Thanks!

-- 
/ Peter Schuller, InfiDyne Technologies HB

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