Hi, all: We want to test the stability and performance of ceph with ext4 file system. Here is the information from `mount`, do we set all attributes correct? /dev/sda1 on /srv/osd.0 type ext4 (rw,noatime,nodiratime,errors=remount-ro,data=writeback,user_xattr) And from the tutorial at http://ceph.newdream.net/wiki/Creating_a_new_file_system We also disable the journal functionality by ` tune2fs -O ^has_journal /dev/sda1` Any extra comment to get better performance? Thanks! -- 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