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
