ceph/doc/dev/freebsd.rst

   1 ==============================
   2 FreeBSD Implementation details
   3 ==============================
   4
   5
   6 Disk layout
   7 -----------
   8
   9 Current implementation works on ZFS pools
  10
  11 * created in /var/lib/ceph
  12 * One ZFS pool per OSD, like::
  13
  14     gpart create -s GPT ada1
  15     gpart add -t freebsd-zfs -l osd1 ada1
  16     zpool create -o mountpoint=/var/lib/ceph/osd/osd.1 osd
  17
  18 * Maybe add some cache and log (ZIL)? Assuming that ada2 is an SSD::
  19
  20     gpart create -s GPT ada2
  21     gpart add -t freebsd-zfs -l osd1-log -s 1G ada2
  22     zpool add osd1 log gpt/osd1-log
  23     gpart add -t freebsd-zfs -l osd1-cache -s 10G ada2
  24     zpool add osd1 log gpt/osd1-cache
  25
  26 * Note: *UFS2 does not allow large xattribs*
  27
  28
  29 Configuration
  30 -------------
  31
  32 As per FreeBSD default parts of extra software go into ``/usr/local/``. Which
  33 means that for ``/etc/ceph.conf`` the default location is
  34 ``/usr/local/etc/ceph/ceph.conf``. Smartest thing to do is to create a softlink
  35 from ``/etc/ceph`` to ``/usr/local/etc/ceph``::
  36
  37   ln -s /usr/local/etc/ceph /etc/ceph
  38
  39 A sample file is provided in ``/usr/local/share/doc/ceph/sample.ceph.conf``
  40
  41
  42 MON creation
  43 ------------
  44
  45 Monitors are created by following the manual creation steps on::
  46
  47   https://docs.ceph.com/en/latest/install/manual-freebsd-deployment/
  48
  49
  50 OSD creation
  51 ------------
  52
  53 OSDs can be manually created only, see :ref:`freebsd_adding_osds`