On Fri, Aug 14, 2009 at 3:46 PM, Chris Hoogendyk<hoogendyk AT bio.umass DOT 
edu> wrote:
> With that ability to span tapes, does Amanda still require a DLE to be
> completed to holding disk before it will send any of it to tape? And, does
> it still stream sequentially to tape if a DLE is too large for a holding
> disk? And, what if you are doing server side compression? Is it the entire
> DLE that gets compressed in one go? That would certainly answer the first
> question.

Amanda still requires a DLE to go completely to holding disk before
being taped.  It compresses the DLE "on the fly" on the way into the
holding disk -- to do otherwise would be to write the data to disk one
more time than required, which would be inefficient.

Dustin

-- 
Open Source Storage Engineer
http://www.zmanda.com