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ceph [2015/06/04 13:01] (current) – created - external edit 127.0.0.1
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 +====== ceph ======
  
 +  * [[btrfs]]
 +  * [[ceph-mon]]
 +  * [[ceph-osd]]
 +  * [[ceph-mds]]
 +  * [[hdparm]]
 +  * [[xfs]]
 +
 +  * [[http://ceph.com/docs/master/rados/configuration/filesystem-recommendations/|Hard Disk and Filesystem Recommendations]]
 +
 +==== Kernel ====
 +
 +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.
 +
 +==== Setup Disks ====
 +
 +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:
 +
 +<code>
 +hdparm -W 0 /dev/sda 0
 +</code>
 +
 +For ext4 filesystems, enable omap support in ''ceph.conf''; optional for xfs or ext4.
 +
 +<code>
 +filestore xattr use omap = true
 +</code>

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