This might be off topic as I brought this from tux3 ml archive, but what does "FS converted zerod blocks to hole like hammerfs" supposed to mean here ?
Is this talking about sparse file ? (and do BSDs including DragonFly even support sparse file ?) http://phunq.net/pipermail/tux3/2015-August/002327.html > Also, if FS converted zerod blocks to hole like hammerfs, simply ENOSPC > happens. This is the result of # dd if=/dev/zero of=xxx bs=16384 count=10 against a newly created fs, and there are 10 zero-filled data records, which is what I was expecting to see in fs level from the way hammer is implemented. -- HAMMER zone statistics zone # blocks items used[B] used[%] zone 0 0 0 0 0 zone 1 0 0 0 0 zone 2 0 0 0 0 zone 3 0 0 0 0 zone 4 0 0 0 0 zone 5 0 0 0 0 zone 6 0 0 0 0 zone 7 0 0 0 0 zone 8 1 1 4096 0.0488281 zone 9 1 4 572 0.00681877 zone 10 1 10 163840 1.95312 zone 11 0 0 0 0 zone 12 0 0 0 0 zone 13 0 0 0 0 zone 14 0 0 0 0 zone 15 0 0 0 0 ---------------------------------------------------------------------- total 3 15 168508 0.669591
