[dataguy]

... ZPL, so the Z POSIX Layer, is the really awesome thing. Virtual block device access is neat, though. I wonder when the first one starts building a high performance data base project based on virtual blocks in zfs for linux. Could be interesting.

[ssmoot]

ZVOLs are block devices. So you could install another fs on top of one. Or more usefully export it as an iSCSI target.

[ithkuil]

sorry for the stupid question, but what features I get with ZVOLS exported as iSCSI/AoE versus exporting a LVM device?