I'm trying to make sense of the disk usage reported by "zfs list". Here's what I get:
$ zfs list \ -o name,used,avail,refer,usedbydataset,usedbychildren,usedbysnapshots \ -t all NAME USED AVAIL REFER USEDDS USEDCHILD USEDSNAP pool/data 58.0G 718G 46.7G 46.7G 0 11.3G pool/data@2015-10-03 0 - 46.5G - - - pool/data@2015-10-04 0 - 46.5G - - - pool/data@2015-10-05 0 - 46.5G - - - pool/data@2015-10-06 0 - 46.5G - - - pool/data@2015-10-07 0 - 46.5G - - - pool/data@2015-10-08 0 - 46.5G - - - pool/data@2015-10-09 0 - 46.5G - - - pool/data@2015-10-10 0 - 46.5G - - - pool/data@2015-10-11 0 - 46.5G - - - pool/data@2015-10-12 0 - 46.5G - - - pool/data@2015-10-13 734M - 46.7G - - - pool/data@2015-10-14 0 - 46.7G - - - pool/data@2015-10-15 0 - 46.7G - - - pool/data@2015-10-16 0 - 46.7G - - - pool/data@2015-10-17 0 - 46.7G - - - pool/data@2015-10-18 0 - 46.7G - - - pool/data@2015-10-19 0 - 46.7G - - - pool/data@2015-10-20 0 - 46.7G - - - pool/data@2015-10-21 0 - 46.7G - - - pool/data@2015-10-22 0 - 46.7G - - - pool/data@2015-10-23 0 - 46.7G - - - pool/data@2015-10-24 0 - 46.7G - - - pool/data@2015-10-25 0 - 46.7G - - - pool/data@2015-10-26 0 - 46.7G - - - pool/data@2015-10-27 0 - 46.7G - - - pool/data@2015-10-28 0 - 46.7G - - - pool/data@2015-10-29 755M - 46.7G - - - pool/data@2015-10-30 757M - 46.7G - - - pool/data@2015-10-31 0 - 46.7G - - - What I don't understand: I have 29 snapshots, only three of them use ~750M, but in total they take 11.3G. Where do the excess 9.1G come from? I'm using sys-fs/zfs-0.6.5.3, in case that matters. -- Remy
