Paul, Jon, & Gene,

My claim was based on experience of running a test configuration once,
and observing an 8-hr run time, then after turning off software
compression, observing that the time was reduced in half. I
immediately abandoned software compression.

Are you suggesting that once Amanda has run once (for 8 hrs, using
gzip both in "estimate" and "dump"), it should not need to run gzip
for the estimate phase ever again, and will therefore only take the
"normal" amount of time (4 hrs, using gzip only for "dump") to
run?

Thanks,

Ivan