but, the write cache on/offness is a stateful setting stored on the disk platter, right? so it survives reboots of the disk, and ZFS doesn't turn it off, and UFS arguably should turn it off but doesn't---once you've dedicated a disk to ZFS, you have to turn the write cache off yourself somehow using 'format -e' if you are no longer using a disk for ZFS only. Or am I remembering wrong?
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