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/
