1、当前状态
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2、在172.10.2.172(node2)再加入一个mon（mon.node2）ssh node2
vim /etc/ceph/ceph.conf 加入mon.node2的相关配置
ceph-authtool /tmp/ceph.mon.keyring –import-keyring /etc/ceph/ceph.client.admin.keyring
monmaptool –create –add node1 172.10.2.172 –fsid e3de7f45-c883-4e2c-a26b-210001a7f3c2 /tmp/monmap
mkdir -p /var/lib/ceph/mon/ceph-node2
ceph-mon –mkfs -i node2 –monmap /tmp/monmap –keyring /tmp/ceph.mon.keyring
touch /var/lib/ceph/mon/ceph-node2/done
/etc/init.d/ceph start
3、在172.10.2.172(node2)再加入一个mdsvim /etc/ceph/ceph.conf 加入mds.node2的相关配置/etc/init.d/ceph restart
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查看信息多了一个standby的mds/etc/init.d/ceph stop mds 关掉一个后还有一个会接管
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附：配置文件root@node1:/var/lib/ceph/osd# cat /etc/ceph/ceph.conf[global]fsid = 5e3a1bf3-9777-4311-a308-67a8c4b8fecemon initial members = node1mon host = 172.10.2.171public network = 172.10.2.0/24auth cluster required = noneauth service required = noneauth client required = noneosd journal size = 1024filestore xattr use omap = trueosd pool default size = 2osd pool default min size = 1osd pool default pg num = 128osd pool default pgp num = 128osd crush chooseleaf type = 1
[mon.node1]host = node1mon addr = 172.10.2.171:6789
[mon.node2]host = node2mon addr = 172.10.2.172:6789
[osd.0]host = node1addr = 172.10.2.171:6789osd data = /var/lib/ceph/osd/ceph-0
[osd.1]host = node1addr = 172.10.2.171:6789osd data = /var/lib/ceph/osd/ceph-1
[osd.2]host = node2addr = 172.10.2.172:6789osd data = /var/lib/ceph/osd/ceph-2
[osd.3]host = node2addr = 172.10.2.172:6789osd data = /var/lib/ceph/osd/ceph-3
[mds.node1]host = node1
[mds.node2]host = node2
[mds]max mds = 2
