zvol size utilization

zvol-size-16k.log

ashift=9 vdev=raidz1 disks=3
tank/foo   102M  1.84G   101M  -

ashift=9 vdev=raidz1 disks=4
tank/foo   103M  2.80G   103M  -

ashift=9 vdev=raidz1 disks=5
tank/foo   102M  3.76G   101M  -

ashift=9 vdev=raidz1 disks=6
tank/foo   104M  4.72G   104M  -

ashift=9 vdev=raidz2 disks=3
tank/foo   102M   872M   100M  -

ashift=9 vdev=raidz2 disks=4
tank/foo   103M  1.83G   103M  -

ashift=9 vdev=raidz2 disks=5
tank/foo   102M  2.78G   101M  -

ashift=9 vdev=raidz2 disks=6
tank/foo   102M  3.77G   101M  -

invalid vdev specification: raidz3 requires at least 4 devices
ashift=9 vdev=raidz3 disks=4
tank/foo   102M   875M   101M  -

ashift=9 vdev=raidz3 disks=5
tank/foo   102M  1.83G   100M  -

ashift=9 vdev=raidz3 disks=6
tank/foo   106M  2.78G   106M  -

ashift=12 vdev=raidz1 disks=3
tank/foo   102M  1.84G   101M  -

ashift=12 vdev=raidz1 disks=4
tank/foo   110M  2.71G   110M  -

ashift=12 vdev=raidz1 disks=5
tank/foo   121M  3.74G   121M  -

ashift=12 vdev=raidz1 disks=6
tank/foo   121M  4.53G   121M  -

ashift=12 vdev=raidz2 disks=3
tank/foo   102M   871M   100M  -

ashift=12 vdev=raidz2 disks=4
tank/foo   110M  1.77G   110M  -

ashift=12 vdev=raidz2 disks=5
tank/foo   135M  2.73G   135M  -

ashift=12 vdev=raidz2 disks=6
tank/foo   102M  3.77G   102M  -

invalid vdev specification: raidz3 requires at least 4 devices
ashift=12 vdev=raidz3 disks=4
tank/foo   102M   874M   101M  -

ashift=12 vdev=raidz3 disks=5
tank/foo   121M  1.80G   121M  -

ashift=12 vdev=raidz3 disks=6
tank/foo   142M  2.59G   142M  -

zvol-size-4k.log

ashift=9 vdev=raidz1 disks=3
tank/foo   107M  1.84G   102M  -

ashift=9 vdev=raidz1 disks=4
tank/foo   115M  2.79G   115M  -

ashift=9 vdev=raidz1 disks=5
tank/foo   107M  3.76G   102M  -

ashift=9 vdev=raidz1 disks=6
tank/foo   107M  4.72G   106M  -

ashift=9 vdev=raidz2 disks=3
tank/foo   107M   870M   102M  -

ashift=9 vdev=raidz2 disks=4
tank/foo   114M  1.82G   114M  -

ashift=9 vdev=raidz2 disks=5
tank/foo   114M  2.77G   114M  -

ashift=9 vdev=raidz2 disks=6
tank/foo   107M  3.77G   102M  -

invalid vdev specification: raidz3 requires at least 4 devices
ashift=9 vdev=raidz3 disks=4
tank/foo   107M   873M   102M  -

ashift=9 vdev=raidz3 disks=5
tank/foo   107M  1.82G   102M  -

ashift=9 vdev=raidz3 disks=6
tank/foo   126M  2.76G   126M  -

ashift=12 vdev=raidz1 disks=3
tank/foo   137M  1.80G   137M  -

ashift=12 vdev=raidz1 disks=4
tank/foo   150M  2.67G   150M  -

ashift=12 vdev=raidz1 disks=5
tank/foo   165M  3.70G   165M  -

ashift=12 vdev=raidz1 disks=6
tank/foo   165M  4.48G   165M  -

ashift=12 vdev=raidz2 disks=3
tank/foo   107M   868M   103M  -

ashift=12 vdev=raidz2 disks=4
tank/foo   150M  1.73G   150M  -

ashift=12 vdev=raidz2 disks=5
tank/foo   183M  2.68G   183M  -

ashift=12 vdev=raidz2 disks=6
tank/foo   206M  3.67G   206M  -

invalid vdev specification: raidz3 requires at least 4 devices
ashift=12 vdev=raidz3 disks=4
tank/foo   107M   872M   103M  -

ashift=12 vdev=raidz3 disks=5
tank/foo   165M  1.76G   165M  -

ashift=12 vdev=raidz3 disks=6
tank/foo   194M  2.53G   194M  -

zvol-size-8k.log

ashift=9 vdev= disks=3
tank/foo   103M  2.81G   101M  -

ashift=9 vdev= disks=4
tank/foo   103M  3.78G   101M  -

ashift=9 vdev= disks=5
tank/foo   103M  4.75G   101M  -

ashift=9 vdev= disks=6
tank/foo   103M  5.72G   101M  -

ashift=9 vdev=mirror disks=3
tank/foo   103M   875M   101M  -

ashift=9 vdev=mirror disks=4
tank/foo   103M   875M   101M  -

ashift=9 vdev=mirror disks=5
tank/foo   103M   875M   101M  -

ashift=9 vdev=mirror disks=6
tank/foo   103M   875M   101M  -

ashift=9 vdev=raidz1 disks=3
tank/foo   103M  1.84G   101M  -

ashift=9 vdev=raidz1 disks=4
tank/foo   104M  2.80G   104M  -

ashift=9 vdev=raidz1 disks=5
tank/foo   103M  3.76G   101M  -

ashift=9 vdev=raidz1 disks=6
tank/foo   105M  4.72G   105M  -

ashift=9 vdev=raidz2 disks=3
tank/foo   103M   871M   101M  -

ashift=9 vdev=raidz2 disks=4
tank/foo   104M  1.83G   104M  -

ashift=9 vdev=raidz2 disks=5
tank/foo   113M  2.77G   113M  -

ashift=9 vdev=raidz2 disks=6
tank/foo   103M  3.77G   101M  -

invalid vdev specification: raidz3 requires at least 4 devices
ashift=9 vdev=raidz3 disks=4
tank/foo   103M   875M   101M  -

ashift=9 vdev=raidz3 disks=5
tank/foo   103M  1.82G   101M  -

ashift=9 vdev=raidz3 disks=6
tank/foo   113M  2.77G   113M  -

ashift=12 vdev= disks=3
tank/foo   103M  2.81G   102M  -

ashift=12 vdev= disks=4
tank/foo   103M  3.78G   102M  -

ashift=12 vdev= disks=5
tank/foo   103M  4.75G   102M  -

ashift=12 vdev= disks=6
tank/foo   103M  5.71G   102M  -

ashift=12 vdev=mirror disks=3
tank/foo   103M   874M   102M  -

ashift=12 vdev=mirror disks=4
tank/foo   103M   874M   102M  -

ashift=12 vdev=mirror disks=5
tank/foo   103M   874M   102M  -

ashift=12 vdev=mirror disks=6
tank/foo   103M   874M   102M  -

ashift=12 vdev=raidz1 disks=3
tank/foo   135M  1.80G   135M  -

ashift=12 vdev=raidz1 disks=4
tank/foo   148M  2.67G   148M  -

ashift=12 vdev=raidz1 disks=5
tank/foo   162M  3.70G   162M  -

ashift=12 vdev=raidz1 disks=6
tank/foo   162M  4.48G   162M  -

ashift=12 vdev=raidz2 disks=3
tank/foo   103M   870M   101M  -

ashift=12 vdev=raidz2 disks=4
tank/foo   148M  1.73G   148M  -

ashift=12 vdev=raidz2 disks=5
tank/foo   180M  2.68G   180M  -

ashift=12 vdev=raidz2 disks=6
tank/foo   203M  3.67G   203M  -

invalid vdev specification: raidz3 requires at least 4 devices
ashift=12 vdev=raidz3 disks=4
tank/foo   103M   874M   102M  -

ashift=12 vdev=raidz3 disks=5
tank/foo   162M  1.76G   162M  -

ashift=12 vdev=raidz3 disks=6
tank/foo   191M  2.54G   191M  -