Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?

[George MacKerron]

Thanks Martin, that's really helpful -- I'll investigate rdiff.

I guess an alternative feature that would support this use case might be 
duplicity backup of data from stdin (possibly with a nominal file name)? Then I 
could do something like:

dd if=/dev/blah | duplicity --stdin-data=devblah.img ...

In fact, the main thing I normally use duplicity for is backup of Postgres 
pg_dump output, and it seems like this would be really useful there too 
(avoiding a lot of disk space wasted on temporary files, and a lot of thrashing 
the disk) -- i.e.

pg_dump … | duplicity --stdin-data=mydb.sql ...

But perhaps there are reasons this wouldn't work -- such as needing random 
access to the data being backed up?

(PS. Apologies if this appears wrongly threaded, having only got your message 
in the archive I couldn't see how to reply in the thread).

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