操作步骤

在原始第一台服务器访问https://192.168.5.100:9090/,在"Virtualiztion"->“Hosted Engin"下点击"Manage Gluster”

点击"Expand Cluster"

填写新加入的3个节点的FQDN，然后点击"下一步"开始安装glusterfs

此处根据需要添加是只扩容data，还是需要扩容所有的如data, vmstore, engine
data
2. gfs安装完成之后到engine管理页面新增主机
3. 在数据中心将data设置为维护状态
data
4. 在存储域中选中data域后点击管理域
mgrdomain
5. 修改挂载选项，将新加入的gfs节点加入原有参数后边，然后再重新激活data域
add gfs
6. 重新平衡数据，即将原有数据平衡分布到新添加的brick中

[root@node100 data]# gluster volume rebalance data start
volume rebalance: data: success: Rebalance on data has been started successfully. Use rebalance status command to check status of the rebalance process.
ID: 2e213ca1-206c-49bd-8381-93bd1ea5195f

查看数据平衡状态

[root@node100 ~]# gluster volume rebalance data statusNode Rebalanced-files          size       scanned      failures       skipped               status  run time in h:m:s---------      -----------   -----------   -----------   -----------   -----------         ------------     --------------node101.cluster.local               23         1.3GB           254             0             0          in progress        0:01:20node102.cluster.local               26         1.4GB           253             0             0          in progress        0:01:20node243.cluster.local                0        0Bytes            52             0             0            completed        0:00:00node246.cluster.local                0        0Bytes            15             0             1            completed        0:00:00node247.cluster.local                0        0Bytes            18             0             0            completed        0:00:00localhost               21         1.1GB           254             0             0          in progress        0:01:20
The estimated time for rebalance to complete will be unavailable for the first 10 minutes.
volume rebalance: data: success