Upstream recommends using XFS or ext4 in production. brtfs is possible, but not recommended at this time for production environments.
Enable extended attributes for the filesystem in the kernel.
Use a separate drive for the OS and the data wherever possible. Otherwise, split them up on individual partitions.
Use hdparm
to disable write caching on the drive:
hdparm -W 0 /dev/sda 0
For ext4 filesystems, enable omap support in ceph.conf
; optional for xfs or ext4.
filestore xattr use omap = true