http://wiki.ceph.com/01Planning/02Blueprints/Emperor/osd:_ceph_on_zfs We've done some preliminary testing and xattr debugging that allows ceph-osd to run on zfsforlinux using the normal writeahead journaling mode (the same mode used for xfs and ext4). However, we aren't doing anything special to take advantage of zfs's capabilities. This session would go over what is needed to make parallel journaling work (which would leverage zfs snapshots). I would also like to have a discussion about whether other longer-term possibilities, such as storing objects directly using the DMU, make sense given what ceph-osd's ObjectStore interface really needs. It might also be an appropriate time to visit whether other snapshotting linux filesystems (like nilfs2) would fit well into any generalization of the filestore code that comes out of this effort. If anybody is interested in this, please add yourself to the interested parties section (or claim ownership) of this blueprint! -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html