<div dir="ltr"><div class="gmail_default" style="font-family:'trebuchet ms',sans-serif;font-size:small">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:</div><div class="gmail_default" style="font-family:'trebuchet ms',sans-serif;font-size:small"><br></div><div class="gmail_default" style=""><div class="gmail_default" style=""><font face="trebuchet ms, sans-serif">snapshots 1d 7d</font></div><div class="gmail_default" style=""><font face="trebuchet ms, sans-serif">prune 1d 5m</font></div><div class="gmail_default" style=""><font face="trebuchet ms, sans-serif">rebalance 1d 5m</font></div><div class="gmail_default" style=""><font face="trebuchet ms, sans-serif">#dedup<span class="" style="white-space:pre"> </span> 1d 5m</font></div><div class="gmail_default" style=""><font face="trebuchet ms, sans-serif">reblock 1d 5m</font></div><div class="gmail_default" style=""><font face="trebuchet ms, sans-serif">recopy 30d 10m</font></div><div class="gmail_default" style=""><font face="trebuchet ms, sans-serif"><br></font></div><div class="gmail_default" style=""><font face="trebuchet ms, sans-serif">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?</font></div><div class="gmail_default" style=""><font face="trebuchet ms, sans-serif"><br></font></div><div class="gmail_default" style="">Tim<br></div></div>
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