ceph-deploy比较适合生产环境，不是用cephadm搭建。相对麻烦一些，但是并不难，细节把握好就行，只是命令多一些而已。

实验环境

服务器主机public网段IP（对外服务）cluster网段IP（集群通信）角色
deploy192.168.2.120用于部署集群、管理集群
ceph-node1192.168.2.121192.168.6.135ceph-mon、ceph-mgr、ceph-osd
ceph-node2192.168.2.122192.168.6.136ceph-mon、ceph-mgr、ceph-osd
ceph-node3192.168.2.123192.168.6.137ceph-mon、ceph-osd
ceph-osd节点：一般建议裸金属部署。10c\12c, 32G、64G更好。ceph-mgr两个节点就可以做高可用了，当然可以用更多节点。ceph-mon必须3个节点以上。ceph-mon性能可以低一点，比如跑虚拟机上。4c8g也够用，4C16G更好。

准备工作关闭防火墙、关闭selinux

systemctl disable firewalldsystemctl stop firewalldsetenforce 0sed -i '7s/enforcing/disabled/' /etc/selinux/config

设置每台服务的hostname

hostnamectl set-hostname ceph-node1hostnamectl set-hostname ceph-node2hostnamectl set-hostname ceph-node3hostnamectl set-hostname ceph-deploy

设置host相互解析

192.168.2.120 ceph-deploy192.168.2.121 ceph-node1192.168.2.122 ceph-node2192.168.2.123 ceph-node3

每台服务器添加好epel源

[epel]name=Extra Packages for Enterprise Linux 7 -baseurl=http://mirrors.tuna.tsinghua.edu.cn/epel/7/$basearch/#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-7&arch=failovermethod=priorityenabled=1gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7[epel-debuginfo]name=Extra Packages for Enterprise Linux 7 -  - Debugbaseurl=http://mirrors.tuna.tsinghua.edu.cn/epel/7/$basearch/debug#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-debug-7&arch=failovermethod=priorityenabled=0gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7gpgcheck=1[epel-source]name=Extra Packages for Enterprise Linux 7 -  - Sourcebaseurl=http://mirrors.tuna.tsinghua.edu.cn/epel/7/SRPMS#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-source-7&arch=failovermethod=priorityenabled=0gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7gpgcheck=1

每台服务器添加ceph的源

[Ceph]name=Ceph packages for $basearchbaseurl=http://mirrors.tuna.tsinghua.edu.cn/ceph/rpm-mimic/el7/$basearchenabled=1gpgcheck=1type=rpm-mdgpgkey=https://mirrors.tuna.tsinghua.edu.cn/ceph/keys/release.asc[Ceph-noarch]name=Ceph noarch packagesbaseurl=http://mirrors.tuna.tsinghua.edu.cn/ceph/rpm-mimic/el7/noarchenabled=1gpgcheck=1type=rpm-mdgpgkey=https://mirrors.tuna.tsinghua.edu.cn/ceph/keys/release.asc[ceph-source]name=Ceph source packagesbaseurl=http://mirrors.tuna.tsinghua.edu.cn/ceph/rpm-mimic/el7/SRPMSenabled=1gpgcheck=1type=rpm-mdgpgkey=https://mirrors.tuna.tsinghua.edu.cn/ceph/keys/release.asc

每天服务器添加ceph用户

groupadd  ceph -g 3333useradd -u 3333 -g 3333 cephecho "cephadmin888" | passwd --stdin ceph

每台服务配置sudoer配置文件，允许ceph用户执行所有sudo命令

echo "ceph    ALL=(ALL)       NOPASSWD:ALL" >> /etc/sudoers

ceph-deploy节点生产ssh密钥

# 切换到ceph用户，切记一定要切换再做..不然免密就是免密你当前的用户，因为后续要用ceph用户来部署。su - ceph# 生成ssh密钥ssh-keygen

复制ssh密钥到ceph-node1、ceph-node2、ceph-node3节点

sudo ssh-copy-id ceph@192.168.2.121sudo ssh-copy-id ceph@192.168.2.122sudo ssh-copy-id ceph@192.168.2.123

开始部署集群在ceph-deploy节点创建目录

su - ceph[ceph@ceph-deploy ~]$ mkdir ceph-cluster-deploy[ceph@ceph-deploy ~]$ cd ceph-cluster-deploy/[ceph@ceph-deploy ceph-cluster-deploy]$

安装ceph-deploy包

[ceph@ceph-deploy ceph-cluster-deploy]$ sudo yum install ceph-deploy python-setuptools python2-subprocess3

安装成功后可以查看ceph-deploy命令是否能够使用

[ceph@ceph-deploy ceph-cluster-deploy]$ ceph-deploy usage: ceph-deploy [-h] [-v | -q] [--version] [--username USERNAME]                   [--overwrite-conf] [--ceph-conf CEPH_CONF]                   COMMAND ...

查看ceph-deploy的版本

ceph-deploy 2.0.1默认安装mimic的ceph版本（也就是13.2.10），如果需要安装其他版本ceph，可以使用–release来指定

[ceph@ceph-deploy ceph-cluster-deploy]$ ceph-deploy --version2.0.1

执行ceph-deploy install命令初始化osd节点

在ceph-deploy节点通过执行install命令，为ceph集群中的osd节点安装ceph相关包

[ceph@ceph-deploy ceph-cluster-deploy]$ ceph-deploy install --helpusage: ceph-deploy install [-h] [--stable [CODENAME] | --release [CODENAME] |                           --testing | --dev [BRANCH_OR_TAG]]                           [--dev-commit [COMMIT]] [--mon] [--mgr] [--mds]                           [--rgw] [--osd] [--tests] [--cli] [--all]                           [--adjust-repos | --no-adjust-repos | --repo]                           [--local-mirror [LOCAL_MIRROR]]                           [--repo-url [REPO_URL]] [--gpg-url [GPG_URL]]                           [--nogpgcheck]                           HOST [HOST ...]Install Ceph packages on remote hosts.positional arguments:  HOST                  hosts to install on... 等选项，此处忽略# 这里有2个比较重要的选项，分别是：--no-adjust-repos     install packages without modifying source repos # 不要去修改ceph的repo源，因为我们前面已经将源改成清华的源了，等下它给你改回来就慢的要死--nogpgcheck          install packages without gpgcheck # 跳过gpg校验

执行命令：

# p.s：ceph-node{1..3} 中的{1..3}这个是linux中的一个循环运算，比如用在for循环中# 实际上生产命令：ceph-deploy install --no-adjust-repos --nogpgcheck ceph-node1 ceph-node2 ceph-node3# 执行该命令进行安装[ceph@ceph-deploy ceph-cluster-deploy]$ ceph-deploy install --no-adjust-repos --nogpgcheck ceph-node{1..3}

执行过程就忽略了，执行成功后有类似提示，如下：

[ceph-node3][DEBUG ] 完毕！[ceph-node3][INFO  ] Running command: sudo ceph --version[ceph-node3][DEBUG ] ceph version 13.2.10 (564bdc4ae87418a232fc901524470e1a0f76d641) mimic (stable)

执行ceph-deploy new命令执行ceph集群初始化

# 查看ceph-deploy new子命令的帮助信息[ceph@ceph-deploy ceph-cluster-deploy]$ ceph-deploy new --helpusage: ceph-deploy new [-h] [--no-ssh-copykey] [--fsid FSID]                       [--cluster-network CLUSTER_NETWORK]                       [--public-network PUBLIC_NETWORK]                       MON [MON ...]Start deploying a new cluster, and write a CLUSTER.conf and keyring for it.positional arguments:  MON                   initial monitor hostname, fqdn, or hostname:fqdn pairoptional arguments:  -h, --help            show this help message and exit  --no-ssh-copykey      do not attempt to copy SSH keys  --fsid FSID           provide an alternate FSID for ceph.conf generation  --cluster-network CLUSTER_NETWORK                        specify the (internal) cluster network  --public-network PUBLIC_NETWORK                        specify the public network for a cluster

执行命令：

# 由于我是将mon也放到osd节点上，所以这里就是ceph-node1、ceph-node2、ceph-node3了# 生产环境，建议将mon单独服务器节点。[ceph@ceph-deploy ceph-cluster-deploy]$ ceph-deploy new --cluster-network 192.168.6.0/24 --public-network 192.168.2.0/24  ceph-node1 ceph-node2 ceph-node3[ceph_deploy.conf][DEBUG ] found configuration file at: /home/ceph/.cephdeploy.conf[ceph_deploy.cli][INFO  ] Invoked (2.0.1): /bin/ceph-deploy new --cluster-network 192.168.6.0/24 --public-network 192.168.2.0/24 ceph-node1 ceph-node2[ceph_deploy.cli][INFO  ] ceph-deploy options:[ceph_deploy.cli][INFO  ]  username                      : None[ceph_deploy.cli][INFO  ]  func                          : [ceph_deploy.cli][INFO  ]  verbose                       : False[ceph_deploy.cli][INFO  ]  overwrite_conf                : False[ceph_deploy.cli][INFO  ]  quiet                         : False[ceph_deploy.cli][INFO  ]  cd_conf                       : [ceph_deploy.cli][INFO  ]  cluster                       : ceph[ceph_deploy.cli][INFO  ]  ssh_copykey                   : True[ceph_deploy.cli][INFO  ]  mon                           : ['ceph-node1', 'ceph-node2'][ceph_deploy.cli][INFO  ]  public_network                : 192.168.2.0/24[ceph_deploy.cli][INFO  ]  ceph_conf                     : None[ceph_deploy.cli][INFO  ]  cluster_network               : 192.168.6.0/24[ceph_deploy.cli][INFO  ]  default_release               : False[ceph_deploy.cli][INFO  ]  fsid                          : None[ceph_deploy.new][DEBUG ] Creating new cluster named ceph[ceph_deploy.new][INFO  ] making sure passwordless SSH succeeds[ceph-node1][DEBUG ] connected to host: ceph-deploy [ceph-node1][INFO  ] Running command: ssh -CT -o BatchMode=yes ceph-node1[ceph-node1][DEBUG ] connection detected need for sudo[ceph-node1][DEBUG ] connected to host: ceph-node1 [ceph-node1][DEBUG ] detect platform information from remote host[ceph-node1][DEBUG ] detect machine type[ceph-node1][DEBUG ] find the location of an executable[ceph-node1][INFO  ] Running command: sudo /usr/sbin/ip link show[ceph-node1][INFO  ] Running command: sudo /usr/sbin/ip addr show[ceph-node1][DEBUG ] IP addresses found: [u'192.168.2.121', u'192.168.6.135'][ceph_deploy.new][DEBUG ] Resolving host ceph-node1[ceph_deploy.new][DEBUG ] Monitor ceph-node1 at 192.168.2.121[ceph_deploy.new][INFO  ] making sure passwordless SSH succeeds[ceph-node2][DEBUG ] connected to host: ceph-deploy [ceph-node2][INFO  ] Running command: ssh -CT -o BatchMode=yes ceph-node2[ceph_deploy.new][WARNIN] could not connect via SSH[ceph_deploy.new][INFO  ] will connect again with password promptThe authenticity of host 'ceph-node2 (192.168.2.122)' can't be established.ECDSA key fingerprint is SHA256:bFB9FzJjKEKMP2W5kW+orMbo9mD+tr8fLOPRsYaXhj8.ECDSA key fingerprint is MD5:b7:e5:bd:6a:56:10:42:3d:34:3a:54:ac:79:a2:3c:5b.Are you sure you want to continue connecting (yes/no)? yesWarning: Permanently added 'ceph-node2' (ECDSA) to the list of known hosts.[ceph-node2][DEBUG ] connected to host: ceph-node2 [ceph-node2][DEBUG ] detect platform information from remote host[ceph-node2][DEBUG ] detect machine type[ceph_deploy.new][INFO  ] adding public keys to authorized_keys[ceph-node2][DEBUG ] append contents to file[ceph-node2][DEBUG ] connection detected need for sudo[ceph-node2][DEBUG ] connected to host: ceph-node2 [ceph-node2][DEBUG ] detect platform information from remote host[ceph-node2][DEBUG ] detect machine type[ceph-node2][DEBUG ] find the location of an executable[ceph-node2][INFO  ] Running command: sudo /usr/sbin/ip link show[ceph-node2][INFO  ] Running command: sudo /usr/sbin/ip addr show[ceph-node2][DEBUG ] IP addresses found: [u'192.168.6.136', u'192.168.2.122'][ceph_deploy.new][DEBUG ] Resolving host ceph-node2[ceph_deploy.new][DEBUG ] Monitor ceph-node2 at 192.168.2.122[ceph_deploy.new][DEBUG ] Monitor initial members are ['ceph-node1', 'ceph-node2'][ceph_deploy.new][DEBUG ] Monitor addrs are [u'192.168.2.121', u'192.168.2.122'][ceph_deploy.new][DEBUG ] Creating a random mon key...[ceph_deploy.new][DEBUG ] Writing monitor keyring to ceph.mon.keyring...[ceph_deploy.new][DEBUG ] Writing initial config to ceph.conf...# 查看当前目录，可以发现生产了一些文件[ceph@ceph-deploy ceph-cluster-deploy]$ ll总用量 16-rw-rw-r-- 1 ceph ceph  292 12月 22 12:10 ceph.conf  # conf是ceph集群的配置文件-rw-rw-r-- 1 ceph ceph 5083 12月 22 12:10 ceph-deploy-ceph.log # 日志-rw------- 1 ceph ceph   73 12月 22 12:10 ceph.mon.keyring # 这个是ceph集群的密钥# 查看ceph.conf[ceph@ceph-deploy ceph-cluster-deploy]$ cat ceph.conf [global]fsid = f1da3a2e-b8df-46ba-9c6b-0030da25c73epublic_network = 192.168.2.0/24cluster_network = 192.168.6.0/24mon_initial_members = ceph-node1, ceph-node2mon_host = 192.168.2.121,192.168.2.122auth_cluster_required = cephxauth_service_required = cephxauth_client_required = cephx

配置mon节点安装ceph-mon包

如果是独立的mon节点，记得检查各个mon节点中是否安装了ceph-mon包

yum install -y ceph-mon

初始化mon节点

切换回ceph-deploy节点

[ceph@ceph-deploy ceph-cluster-deploy]$ ceph-deploy mon create-initial

执行完成后回发现又多了一些配置文件，这些文件都是非常重要的，类似k8s中的kubeconfig，不要随意泄露。

[ceph@ceph-deploy ceph-cluster-deploy]$ ll总用量 476-rw------- 1 ceph ceph    113 12月 22 13:11 ceph.bootstrap-mds.keyring-rw------- 1 ceph ceph    113 12月 22 13:11 ceph.bootstrap-mgr.keyring-rw------- 1 ceph ceph    113 12月 22 13:11 ceph.bootstrap-osd.keyring-rw------- 1 ceph ceph    113 12月 22 13:11 ceph.bootstrap-rgw.keyring-rw------- 1 ceph ceph    151 12月 22 13:11 ceph.client.admin.keyring-rw-rw-r-- 1 ceph ceph    292 12月 22 12:11 ceph.conf-rw-rw-r-- 1 ceph ceph 207826 12月 22 13:17 ceph-deploy-ceph.log-rw------- 1 ceph ceph     73 12月 22 12:11 ceph.mon.keyring

而且对应的mon节点上的服务器，运行的mon服务

ceph-mon@.service从此处链接：/etc/systemd/system/ceph-mon.target.wants/ceph-mon@.service

并且也有对应的进程

[root@ceph-node3 ~]# ps axu | grep nonceph        2614  0.5  2.1 470596 39944 ?        Ssl  13:17   0:00 /usr/bin/ceph-mon -f --cluster ceph --id ceph-node3 --setuser ceph --setgroup ceph

推送管理密钥到节点

推送密钥到各个osd节点、或者你需要使用ceph集群管理的节点。不推送你就得每次自己指定密钥，比较麻烦。。。

[ceph@ceph-deploy ceph-cluster-deploy]$ ceph-deploy admin ceph-node{1..3}# 推送给自己，因为我这里是用同一个服务器来部署和管理ceph集群[ceph@ceph-deploy ceph-cluster-deploy]$ ceph-deploy admin ceph-deploy

设置密钥的facl权限

在各个node节点上设置文件facl，因为推送过去的密码默认属主和属组都是root用户，但是我们前面是创建ceph用户用于管理ceph集群

# 可以在root用户下设置，也可以用sudo# ceph-node1[root@ceph-node1 ~]# setfacl -m u:ceph:rw /etc/ceph/ceph.client.admin.keyring [root@ceph-node1 ~]# getfacl /etc/ceph/ceph.client.admin.keyringgetfacl: Removing leading '/' from absolute path names# file: etc/ceph/ceph.client.admin.keyring# owner: root# group: rootuser::rw-user:ceph:rw-group::---mask::rw-other::---# ceph-node2 和 ceph-node3 类似# 因为我打算在deploy节点同时管理ceph，也就是admin和deploy是同一个节点，所以这里也要给ddeploy节点设置facl[root@ceph-deploy ~]# setfacl -m u:ceph:rw /etc/ceph/ceph.client.admin.keyring

配置mgr节点

只有ceph luminios和以上的版本才有mgr节点，老版本并没有，所以老版本不需要部署。

但是我们部署的是安装mimic的ceph版本（也就是13.2.10），所以需要部署。

安装ceph-mgr包

如果是独立的mgr节点服务器，记得检查是否安装了ceph-mgr包

yum install -y ceph-mgr

ceph-mgr命令选项：

[ceph@ceph-deploy ceph-cluster-deploy]$ ceph-deploy mgr --helpusage: ceph-deploy mgr [-h] {create} ...Ceph MGR daemon managementpositional arguments:  {create}    create    Deploy Ceph MGR on remote host(s)optional arguments:  -h, --help  show this help message and exit

添加mgr节点

执行命令，初始化mgr节点

# 由于我是osd、mon、mgr混用服务器，所以这里就用ceph-node1、ceph-node2了。ceph-deploy mgr create ceph-node1 ceph-node2

检查ceph集群状态

[ceph@ceph-deploy ceph-cluster-deploy]$ ceph -s  cluster:    id:     f1da3a2e-b8df-46ba-9c6b-0030da25c73e    health: HEALTH_WARN            OSD count 0 < osd_pool_default_size 3   services:    mon: 3 daemons, quorum ceph-node1,ceph-node2,ceph-node3    mgr: ceph-node1(active), standbys: ceph-node2    osd: 0 osds: 0 up, 0 in   data:    pools:   0 pools, 0 pgs    objects: 0  objects, 0 B    usage:   0 B used, 0 B / 0 B avail    pgs:

添加osd添加osd到集群中

# 擦除osd节点上要被添加的磁盘的空间ceph-deploy disk zap ceph-node1 /dev/sd{b,c,d}ceph-deploy disk zap ceph-node2 /dev/sd{b,c,d}ceph-deploy disk zap ceph-node3 /dev/sd{b,c,d}# 添加ceph-node1上的磁盘为osd[ceph@ceph-deploy ceph-cluster-deploy]$ ceph-deploy osd create ceph-node1 --data /dev/sdb[ceph@ceph-deploy ceph-cluster-deploy]$ ceph-deploy osd create ceph-node1 --data /dev/sdc[ceph@ceph-deploy ceph-cluster-deploy]$ ceph-deploy osd create ceph-node1 --data /dev/sdd# 添加ceph-node2上的磁盘为osdceph-deploy osd create ceph-node2 --data /dev/sdbceph-deploy osd create ceph-node2 --data /dev/sdcceph-deploy osd create ceph-node2 --data /dev/sdd# 添加ceph-node3上的磁盘为osdceph-deploy osd create ceph-node3 --data /dev/sdbceph-deploy osd create ceph-node3 --data /dev/sdcceph-deploy osd create ceph-node3 --data /dev/sdd# 添加完成后，会在对应的osd节点上添加osd服务（但是只是runtime临时生效，必须将其改为永久生效）如：/run/systemd/system/ceph-osd.target.wants/ceph-osd@7.service # 7是osd的id，从0开始。

检查osd状态

# 通过ceph-deploy可以检查[ceph@ceph-deploy ceph-cluster-deploy]$ ceph-deploy osd list ceph-node{1,2,3}# 通过ceph osd stat命令检查[ceph@ceph-deploy ceph-cluster-deploy]$ ceph osd stat9 osds: 9 up, 9 in; epoch: e37# 使用 ceph osd status 查看- `id`: OSD的唯一标识符。- `host`: OSD所在的主机名- `used`: OSD已使用的存储容量。- `avail`: OSD可用的存储容量。- `wr ops`: OSD每秒写入操作的数量。- `wr data`: OSD每秒写入数据的数量。- `rd ops`: OSD每秒读取操作的数量。- `rd data`: OSD每秒读取数据的数量。- `state`: OSD的状态，"exists"表示OSD存在，"up"表示OSD正常运行。[ceph@ceph-deploy ceph-cluster-deploy]$ ceph osd status+----+------------+-------+-------+--------+---------+--------+---------+-----------+| id |    host    |  used | avail | wr ops | wr data | rd ops | rd data |   state   |+----+------------+-------+-------+--------+---------+--------+---------+-----------+| 0  | ceph-node1 | 1028M | 4087M |    0   |     0   |    0   |     0   | exists,up || 1  | ceph-node1 | 1028M | 4087M |    0   |     0   |    0   |     0   | exists,up || 2  | ceph-node1 | 1028M | 4087M |    0   |     0   |    0   |     0   | exists,up || 3  | ceph-node2 | 1028M | 4087M |    0   |     0   |    0   |     0   | exists,up || 4  | ceph-node2 | 1028M | 4087M |    0   |     0   |    0   |     0   | exists,up || 5  | ceph-node2 | 1028M | 4087M |    0   |     0   |    0   |     0   | exists,up || 6  | ceph-node3 | 1028M | 4087M |    0   |     0   |    0   |     0   | exists,up || 7  | ceph-node3 | 1028M | 4087M |    0   |     0   |    0   |     0   | exists,up || 8  | ceph-node3 | 1028M | 4087M |    0   |     0   |    0   |     0   | exists,up |+----+------------+-------+-------+--------+---------+--------+---------+-----------+# ceph osd tree 也可以[root@ceph-node1 ~]# ceph osd treeID CLASS WEIGHT  TYPE NAME           STATUS REWEIGHT PRI-AFF -1       0.04408 root default                                -3       0.01469     host ceph-node1                          0   hdd 0.00490         osd.0           up  1.00000 1.00000  1   hdd 0.00490         osd.1           up  1.00000 1.00000  2   hdd 0.00490         osd.2           up  1.00000 1.00000 -5       0.01469     host ceph-node2                          3   hdd 0.00490         osd.3           up  1.00000 1.00000  4   hdd 0.00490         osd.4           up  1.00000 1.00000  5   hdd 0.00490         osd.5           up  1.00000 1.00000 -7       0.01469     host ceph-node3                          6   hdd 0.00490         osd.6           up  1.00000 1.00000  7   hdd 0.00490         osd.7           up  1.00000 1.00000  8   hdd 0.00490         osd.8           up  1.00000 1.00000  # 这个是用来查看osd的disk free，类似linux的df- `ID`: OSD的唯一标识符。- `CLASS`: OSD的存储类别。- `WEIGHT`: OSD的权重。- `REWEIGHT`: OSD的重新加权比例。- `SIZE`: OSD的总存储容量。- `RAW USE`: OSD当前使用的原始存储容量。- `DATA`: OSD数据存储使用量。- `OMAP`: OSD的OMAP（Object Map）数据存储使用量。- `META`: OSD元数据存储使用量。- `AVAIL`: OSD可用的存储容量。- `%USE`: OSD使用率百分比。- `VAR`: OSD使用率方差。- `PGS`: OSD分布的PG（Placement Group）数量。- `STATUS`: OSD的状态，"up"表示OSD正常运行。 [root@ceph-node1 ~]# ceph osd dfID CLASS WEIGHT  REWEIGHT SIZE    USE     DATA    OMAP META  AVAIL   %USE  VAR  PGS  0   hdd 0.00490  1.00000 5.0 GiB 1.0 GiB 4.7 MiB  0 B 1 GiB 4.0 GiB 20.11 1.00   0  1   hdd 0.00490  1.00000 5.0 GiB 1.0 GiB 4.7 MiB  0 B 1 GiB 4.0 GiB 20.11 1.00   0  2   hdd 0.00490  1.00000 5.0 GiB 1.0 GiB 4.7 MiB  0 B 1 GiB 4.0 GiB 20.11 1.00   0  3   hdd 0.00490  1.00000 5.0 GiB 1.0 GiB 4.7 MiB  0 B 1 GiB 4.0 GiB 20.11 1.00   0  4   hdd 0.00490  1.00000 5.0 GiB 1.0 GiB 4.7 MiB  0 B 1 GiB 4.0 GiB 20.11 1.00   0  5   hdd 0.00490  1.00000 5.0 GiB 1.0 GiB 4.7 MiB  0 B 1 GiB 4.0 GiB 20.11 1.00   0  6   hdd 0.00490  1.00000 5.0 GiB 1.0 GiB 4.7 MiB  0 B 1 GiB 4.0 GiB 20.11 1.00   0  7   hdd 0.00490  1.00000 5.0 GiB 1.0 GiB 4.7 MiB  0 B 1 GiB 4.0 GiB 20.11 1.00   0  8   hdd 0.00490  1.00000 5.0 GiB 1.0 GiB 4.7 MiB  0 B 1 GiB 4.0 GiB 20.11 1.00   0                     TOTAL  45 GiB 9.0 GiB  42 MiB  0 B 9 GiB  36 GiB 20.11          MIN/MAX VAR: 1.00/1.00  STDDEV: 0

将ceph-osd服务设置开机启动

根据osd所在节点，添加对应的服务为开机启动

# ceph-node1systemctl enable ceph-osd@{0,1,2}# ceph-node2systemctl enable ceph-osd@{3,4,5}# ceph-node3systemctl enable ceph-osd@{6,7,8}

管理相关从rados中移除osd

移除的时候，最好一个个移除，不然有可能性能跟不上，因为ceph自己去找其他osd的备份来作为主，一旦一次性删除太多就可能出现性能问题。

# 停用osdceph osd out # 停止osd服务systemctl stop ceph-osd@# 移除osdceph osd ourge  --yes-i-really-mean-it# 检查ceph.conf集群配置文件中，是福哦还有对应osd的配置，如有则手动删除、###### Luminous 之前的版本，移除步骤如下 ：ceph osd crush remove ceph auth del osd ceph osd rm

手动测试数据上传、下载

# 通过rados创建poolrados mkpool  [123[ 4]]  create pool '                                    [with auid 123[and using crush rule 4]]# 通过ceph 命令创建poolceph osd pool create   {} {replicated|erasure} {}          create pool {} {}    ceph osd pool  create   # 上传文件到指定的pool[ceph@ceph-deploy ceph-cluster-deploy]$ rados put myfile /etc/fstab -p swq-test# 列出指定pool中的文件[ceph@ceph-deploy ceph-cluster-deploy]$ rados ls -p swq-testmyfile# 下载文件[ceph@ceph-deploy ceph-cluster-deploy]$ rados get myfile -p swq-test /tmp/my.txt[ceph@ceph-deploy ceph-cluster-deploy]$ cat /tmp/my.txt ## /etc/fstab# Created by anaconda on Thu Dec 21 23:51:13 2023## Accessible filesystems, by reference, are maintained under '/dev/disk'# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info#/dev/mapper/centos-root /                       xfs     defaults        0 0UUID=4b1bb372-7f34-48f6-8852-036ee6dfd125 /boot  # 查看文件的映射关系[ceph@ceph-deploy ceph-cluster-deploy]$ ceph osd map swq-test myfileosdmap e43 pool 'swq-test' (2) object 'myfile' -> pg 2.423e92f7 (2.17) -> up ([5,6,2], p5) acting ([5,6,2], p5)# 在哪个pg中？# pg为2的423e92f7中。# -> pg 2.423e92f7 (2.17) # 在哪个osd中？# 这里是在5，6，2这3个osd中，主osd为：5# acting是目前活动的osd# -> up ([5,6,2], p5) acting ([5,6,2], p5)

本文来自博客园，作者：蕝戀，转载请注明原文链接：https://www.cnblogs.com/juelian/p/17921681.html