Hammer maintenance question

[Tim Darby]

This is an observation with hammer that I've noticed for a long time and it
happens often enough that I want to put it out there and see if there's
anything to it. I have a number of master/slave pairs and I typically set
them all to:

snapshots 1d 7d
prune     1d 5m
rebalance 1d 5m
#dedup   1d 5m
reblock   1d 5m
recopy    30d 10m

I run the standard nightly hammer maintenance script. Typically, shortly
after the 7d period, the master volume will recover a big chunk of space,
but the slave won't. That's fair, I'm aware of pruning and reblocking
behavior. However, the slave will more often than not take a week or more
after that to recover that same space. Is there something about the way
mirroring writes blocks to disk that would have this effect?

Tim
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.dragonflybsd.org/pipermail/users/attachments/20160215/da6c40ed/attachment-0002.htm>