Hi, After install zfs and created zpool using "zpool create tank /dev/sdb2" after set mountpoint"zfs set mountpoint=/data/osd.1" then "zfs mount -a" But when am running mkcephfs command am getting following error, temp dir is /tmp/mkcephfs.Em23UGJyWd preparing monmap in /tmp/mkcephfs.Em23UGJyWd/monmap /usr/local/bin/monmaptool --create --clobber --add a 192.168.120.32:6789 --add b 192.168.120.32:6790 --print /tmp/mkcephfs.Em23UGJyWd/monmap /usr/local/bin/monmaptool: monmap file /tmp/mkcephfs.Em23UGJyWd/monmap /usr/local/bin/monmaptool: generated fsid a9d2dba0-a490-4c92-a5e1-04cce1118462 epoch 0 fsid a9d2dba0-a490-4c92-a5e1-04cce1118462 last_changed 2012-08-27 10:00:22.031670 created 2012-08-27 10:00:22.031670 0: 192.168.120.32:6789/0 mon.a 1: 192.168.120.32:6790/0 mon.b /usr/local/bin/monmaptool: writing epoch 0 to /tmp/mkcephfs.Em23UGJyWd/monmap (2 monitors) === osd.0 === pushing conf and monmap to node32:/tmp/mkfs.ceph.5587 2012-08-27 10:00:25.408604 7f46bf574780 -1 filestore(/data/osd.0) leveldb db created 2012-08-27 10:00:25.585815 7f46bf574780 -1 filestore(/data/osd.0) limited size xattrs -- filestore_xattr_use_omap enabled 2012-08-27 10:00:26.207126 7f46bf574780 -1 created object store /data/osd.0 journal /data/osd.0/osd.0.journal for osd.0 fsid a9d2dba0-a490-4c92-a5e1- 04cce1118462 creating private key for osd.0 keyring /etc/ceph/keyring.osd.0 creating /etc/ceph/keyring.osd.0 collecting osd.0 key === osd.1 === pushing conf and monmap to node32:/tmp/mkfs.ceph.5587 2012-08-27 10:00:40.308853 7fb416bc2780 -1 filestore(/data/osd.1) leveldb db created 2012-08-27 10:00:40.309546 7fb416bc2780 -1 journal FileJournal::_open: unable to open journal: open() failed: (22) Invalid argument 2012-08-27 10:00:40.310103 7fb416bc2780 -1 OSD::mkfs: FileStore::mkfs failed with error -22 2012-08-27 10:00:40.310291 7fb416bc2780 -1 ** ERROR: error creating empty object store in /data/osd.1: (22) Invalid argument failed: 'ssh root@node32 /usr/local/sbin/mkcephfs -d /tmp/mkfs.ceph.5587 --init- daemon osd.1' Thanks, Ramu. -- 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