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==============================
FreeBSD Implementation details
==============================
Disk layout
-----------
Current implementation works on ZFS pools
* created in /var/lib/ceph
* One ZFS pool per OSD, like::
gpart create -s GPT ada1
gpart add -t freebsd-zfs -l osd1 ada1
zpool create -o mountpoint=/var/lib/ceph/osd/osd.1 osd
* Maybe add some cache and log (ZIL)? Assuming that ada2 is an SSD::
gpart create -s GPT ada2
gpart add -t freebsd-zfs -l osd1-log -s 1G ada2
zpool add osd1 log gpt/osd1-log
gpart add -t freebsd-zfs -l osd1-cache -s 10G ada2
zpool add osd1 log gpt/osd1-cache
* Note: *UFS2 does not allow large xattribs*
Configuration
-------------
As per FreeBSD default parts of extra software go into ``/usr/local/``. Which
means that for ``/etc/ceph.conf`` the default location is
``/usr/local/etc/ceph/ceph.conf``. Smartest thing to do is to create a softlink
from ``/etc/ceph`` to ``/usr/local/etc/ceph``::
ln -s /usr/local/etc/ceph /etc/ceph
A sample file is provided in ``/usr/local/share/doc/ceph/sample.ceph.conf``
MON creation
------------
Monitors are created by following the manual creation steps on::
http://docs.ceph.com/docs/master/install/manual-deployment/
OSD creation
------------
OSDs can be manually created only, see :ref:`freebsd_adding_osds`
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