Ceph on ZFS (CentOS)

Create the OSD on your mon, you will use these ID later:
ceph osd create

Update your ceph.conf on all the osd machines.
[osd]
journal_dio = false
filestore_zfs_snap = 1
journal_aio = false

Configure your storage.

zpool create disk1 /dev/sdX
zpool create disk2 /dev/sdX
zfs set mountpoint=/var/lib/ceph/osd/ceph-2 disk1
zfs set mountpoint=/var/lib/ceph/osd/ceph-3 disk2
zfs set xattr=sa disk2
zfs set xattr=sa disk1
ceph-osd -i 2 --mkfs --mkkey
ceph-osd -i 3 --mkfs --mkkey
ceph auth add osd.3 osd 'allow *' mon 'allow rwx' -i /var/lib/ceph/osd/ceph-3/keyring
ceph auth add osd.2 osd 'allow *' mon 'allow rwx' -i /var/lib/ceph/osd/ceph-2/keyring

#this makes the init script start them, no osd configuration needed in ceph.conf
touch /var/lib/ceph/osd/ceph-2/sysvinit
touch /var/lib/ceph/osd/ceph-3/sysvinit
service ceph start

Further example/documentation: http://docs.ceph.com/docs/master/install/manual-deployment/

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