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[Networker] ZFS deduplication.
2010-03-14 15:59:21
A few days ago I read a post to EMC's Networker forum by Nicholas
Bone (https://community.emc.com/thread/99839?tstart=0). He reported a
test he performed with AFTD which was running on top of ZFS with dedup.
Unfortunately, he wasn't able to get any reasonable dedup ratios (1.03
for three full savesets of the the same file system). My conclusion was
that Networker does not align files at block level, which confuses the
ZFS dedup code. Is anyone familiar with some flag or any configuration
option which will convince save or AFTD to do the right thing so that
ZFS will be able to find identical blocks ?
--
-- Yaron.
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