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                **一、添加OSD節點** 1、在ceph-deploy節點的/etc/hosts文件中天機該主機的ip地址 ~~~ vi /etc/hosts ###其他主機的此處省略了,生產中應添加 192.168.1.2 node4 ~~~ 2、在node4配置yum源 可將其他主機的yum.repo文件同步至該主機 ~~~ scp node3:/etc/yum.repos.d/* ./ ###執行下列命令### yum clean all yum makecache ~~~ 3、配置node4節點SSH無密碼登錄,拷貝key到node4 `#ssh-copy-id node4` 4、在ceph-deploy給node4安裝ceph `#ceph-deploy install node4` 需在node4執行: ~~~ yum -y install ceph ~~~ 5、初始化node4節點磁盤 ~~~ ####若已經格式化掛載,此步驟可省略### #ceph-deploy disk zap node4:sdb ~~~ 6、準備node4節點磁盤OSD `ceph-deploy osd prepare node4:/ceph05` 7、激活node4節點磁盤 `ceph-deploy osd activate node4:/ceph05` 8、更新Crush Map信息 ~~~ #ceph osd crush add-bucket node4 host #ceph osd move node4 root=default #ceph osd crush add osd.$i 1.0 host=node4 ~~~ 9、查看是否添加成功 `ceph osd tree ` **二、刪除OSD節點** ceph-deploy 不支持一鍵刪除OSD,所以需手動方式刪除。 1、停止OSD的相關進程,刪除OSD相關目錄 `#stop ceph-osd id=x ####此處x為osd的編號` 2、從crush map移出OSD的信息(此處會進行重構) ~~~ #ceph osd out osd.x #ceph osd crush remove osd.x ~~~ 3、刪除OSD證信息 `ceph auth del osd.x` 4、刪除OSD `ceph osd rm x` OSD剔除ceph集群: ceph osd out 5 //將osd.5踢出集群 service ceph stop osd.5 //停止此osd進程 ceph auth del osd.5 //從認證中刪除 ceph osd rm 5 //刪除 ceph osd crush remove osd.5 //從tree中刪除
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