在Ubuntu 20.04上安装Ceph 15（Octopus）存储集群
这是续集。
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这是续集。
这是续集。
这是续集。
我计划将有关在Ubuntu 20.04 Linux服务器上安装Ceph存储群集的文章汇总在一起，这是交货日期。 Ceph是一种软件定义的存储解决方案，旨在在商用硬件上构建分布式存储集群。在Ubuntu 20.04上构建Ceph存储集群的要求在很大程度上取决于您的预期用例。
此设置不适用于运行关键任务和功能强大的刻录应用程序。您可能需要参考官方项目文档以了解这些要求，尤其是有关网络和存储硬件的要求。以下是构成本安装指南的标准Ceph组件。
- Ceph MON –服务器监控
- Ceph MDS元数据服务器
- Ceph MGR – Ceph管理器守护程序
- Ceph OSD对象存储守护进程
在Ubuntu 20.04上安装Ceph Storage Cluster
在Ubuntu 20.04 Linux服务器上开始部署Ceph Storage Cluster之前，需要准备所需的服务器。下面是准备安装我的服务器的图片。
如您所见，我的实验室具有以下服务器名称和IP地址：
| 服务器主机名 | 服务器的IP地址 | Ceph组件 | 服务器规格 |
| ceph-mon-01 | 172.16.20.10 | Ceph MON，MGR，MDS | 8GB RAM，4vPcus |
| ceph-mon-02 | 172.16.20.11 | Ceph MON，MGR，MDS | 8GB RAM，4vPcus |
| ceph-mon-03 | 172.16.20.12 | Ceph MON，MGR，MDS | 8GB RAM，4vPcus |
| ceph-osd-01 | 172.16.20.13 | Ceph OSD | 16GB RAM，8vpcus |
| ceph-osd-02 | 172.16.20.14 | Ceph OSD | 16GB RAM，8vpcus |
| ceph-osd-03 | 172.16.20.15 | Ceph OSD | 16GB RAM，8vpcus |
步骤1：准备第一个见证节点
用于部署的ceph组件是Cephadm。 Cephadm通过使用SSH从管理器守护程序连接到主机来添加，删除或更新Ceph群集，从而部署和管理Ceph群集。
登录到第一个观察者节点。
$ ssh [email protected]
Warning: Permanently added 'ceph-mon-01,172.16.20.10' (ECDSA) to the list of known hosts.
Enter passphrase for key '/var/home/jkmutai/.ssh/id_rsa':
Welcome to Ubuntu 20.04 LTS (GNU/Linux 5.4.0-33-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
Last login: Tue Jun 2 20:36:36 2020 from 172.16.20.10
[email protected]:~# 更新资料 / etc / hosts 包含所有IP地址和主机名条目的文件。
# vim /etc/hosts
127.0.0.1 localhost
# Ceph nodes
172.16.20.10 ceph-mon-01
172.16.20.11 ceph-mon-02
172.16.20.12 ceph-mon-03
172.16.20.13 ceph-osd-01
172.16.20.14 ceph-osd-02
172.16.20.15 ceph-osd-03操作系统更新和升级：
sudo apt update && sudo apt -y upgrade
sudo systemctl reboot安装Ansible和其他基本实用程序。
sudo apt update
sudo apt -y install software-properties-common git curl vim bash-completion ansible确保已安装Ansible。
$ ansible --version
ansible 2.9.6
config file = /etc/ansible/ansible.cfg
configured module search path = ['/root/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
ansible python module location = /usr/lib/python3/dist-packages/ansible
executable location = /usr/bin/ansible
python version = 3.8.2 (default, Apr 27 2020, 15:53:34) [GCC 9.3.0]确保将/ usr / local / bin路径添加到PATH。
echo "PATH=$PATH:/usr/local/bin" >>~/.bashrc
source ~/.bashrc
检查当前路径：
$ echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/local/bin生成SSH密钥。
$ ssh-keygen -t rsa -b 4096 -N '' -f ~/.ssh/id_rsa Generating public/private rsa key pair. Your identification has been saved in /root/.ssh/id_rsa Your public key has been saved in /root/.ssh/id_rsa.pub The key fingerprint is: SHA256:3gGoZCVsA6jbnBuMIpnJilCiblaM9qc5Xk38V7lfJ6U [email protected] The key's randomart image is: +---[RSA 4096]----+ | ..o. . | |. +o . | |. .o.. . | |o .o .. . . | |o%o.. oS . o .| |@+*o o… .. .o | |O oo . ….. .E o| |o+.oo. . ..o| |o .++ . | +----[SHA256]-----+
安装Cephadm。
curl --silent --remote-name --location https://github.com/ceph/ceph/raw/octopus/src/cephadm/cephadm
chmod +x cephadm
sudo mv cephadm /usr/local/bin/
确保cephadm在本地可用。
$ cephadm --help步骤2：更新所有Ceph节点并推送SSH公钥
配置第一个Mon节点后，创建一个可更新所有节点的Ansible剧本，并按ssh公钥进行更新 / etc / hosts 所有节点的文件。
cd ~/
vim prepare-ceph-nodes.yml请更正以下内容并正确设置。 时区 附加到文件。
---
- name: Prepare ceph nodes
hosts: ceph_nodes
become: yes
become_method: sudo
vars:
ceph_admin_user: cephadmin
tasks:
- name: Set timezone
timezone:
name: Africa/Nairobi
- name: Update system
apt:
name: "*"
state: latest
update_cache: yes
- name: Install common packages
apt:
name: [vim,git,bash-completion,wget,curl,chrony]
state: present
update_cache: yes
- name: Set authorized key taken from file to root user
authorized_key:
user: root
state: present
key: "{{ lookup('file', '~/.ssh/id_rsa.pub') }}"
- name: Install Docker
shell: |
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
echo "deb [arch=amd64] https://download.docker.com/linux/ubuntu focal stable" > /etc/apt/sources.list.d/docker-ce.list
apt update
apt install -qq -y docker-ce docker-ce-cli containerd.io
- name: Reboot server after update and configs
reboot:创建一个清单文件。
$ vim hosts
[ceph_nodes]
ceph-mon-01
ceph-mon-02
ceph-mon-03
ceph-osd-01
ceph-osd-02
ceph-osd-03
如果您使用密钥密码短语，请保存它。
$ eval `ssh-agent -s` && ssh-add ~/.ssh/id_rsa_jmutai
Agent pid 3275
Enter passphrase for /root/.ssh/id_rsa_jmutai:
Identity added: /root/.ssh/id_rsa_jkmutai (/root/.ssh/id_rsa_jmutai)设置ssh。
tee -a ~/.ssh/config<运行剧本：
# As root user with default ssh key:
$ ansible-playbook -i hosts prepare-ceph-nodes.yml --user root
# As root user with password:
$ ansible-playbook -i hosts prepare-ceph-nodes.yml --user root --ask-pass
# As sudo user with password - replace ubuntu with correct username
$ ansible-playbook -i hosts prepare-ceph-nodes.yml --user ubuntu --ask-pass --ask-become-pass
# As sudo user with ssh key and sudo password - replace ubuntu with correct username
$ ansible-playbook -i hosts prepare-ceph-nodes.yml --user ubuntu --ask-become-pass
# As sudo user with ssh key and passwordless sudo - replace ubuntu with correct username
$ ansible-playbook -i hosts prepare-ceph-nodes.yml --user ubuntu --ask-become-pass
# As sudo or root user with custom key
$ ansible-playbook -i hosts prepare-ceph-nodes.yml --private-key /path/to/private/key 就我而言：
$ ansible-playbook -i hosts prepare-ceph-nodes.yml --private-key ~/.ssh/id_rsa_jkmutai执行输出：
ansible-playbook -i hosts prepare-ceph-nodes.yml --private-key ~/.ssh/id_rsa_jmutai
PLAY [Prepare ceph nodes] ******************************************************************************************************************************
TASK [Gathering Facts] *********************************************************************************************************************************
ok: [ceph-mon-03]
ok: [ceph-mon-02]
ok: [ceph-mon-01]
ok: [ceph-osd-01]
ok: [ceph-osd-02]
ok: [ceph-osd-03]
TASK [Update system] ***********************************************************************************************************************************
changed: [ceph-mon-01]
changed: [ceph-mon-02]
changed: [ceph-mon-03]
changed: [ceph-osd-02]
changed: [ceph-osd-01]
changed: [ceph-osd-03]
TASK [Install common packages] *************************************************************************************************************************
changed: [ceph-mon-02]
changed: [ceph-mon-01]
changed: [ceph-osd-02]
changed: [ceph-osd-01]
changed: [ceph-mon-03]
changed: [ceph-osd-03]
TASK [Add ceph admin user] *****************************************************************************************************************************
changed: [ceph-osd-02]
changed: [ceph-mon-02]
changed: [ceph-mon-01]
changed: [ceph-mon-03]
changed: [ceph-osd-01]
changed: [ceph-osd-03]
TASK [Create sudo file] ********************************************************************************************************************************
changed: [ceph-mon-02]
changed: [ceph-osd-02]
changed: [ceph-mon-01]
changed: [ceph-osd-01]
changed: [ceph-mon-03]
changed: [ceph-osd-03]
TASK [Give ceph admin user passwordless sudo] **********************************************************************************************************
changed: [ceph-mon-02]
changed: [ceph-mon-01]
changed: [ceph-osd-02]
changed: [ceph-osd-01]
changed: [ceph-mon-03]
changed: [ceph-osd-03]
TASK [Set authorized key taken from file to ceph admin] ************************************************************************************************
changed: [ceph-mon-01]
changed: [ceph-osd-01]
changed: [ceph-mon-03]
changed: [ceph-osd-02]
changed: [ceph-mon-02]
changed: [ceph-osd-03]
TASK [Set authorized key taken from file to root user] *************************************************************************************************
changed: [ceph-mon-01]
changed: [ceph-mon-02]
changed: [ceph-mon-03]
changed: [ceph-osd-01]
changed: [ceph-osd-02]
changed: [ceph-osd-03]
TASK [Install Docker] **********************************************************************************************************************************
changed: [ceph-mon-01]
changed: [ceph-mon-02]
changed: [ceph-osd-02]
changed: [ceph-osd-01]
changed: [ceph-mon-03]
changed: [ceph-osd-03]
TASK [Reboot server after update and configs] **********************************************************************************************************
changed: [ceph-osd-01]
changed: [ceph-mon-02]
changed: [ceph-osd-02]
changed: [ceph-mon-01]
changed: [ceph-mon-03]
changed: [ceph-osd-03]
PLAY RECAP *********************************************************************************************************************************************
ceph-mon-01 : ok=9 changed=8 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
ceph-mon-02 : ok=9 changed=8 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
ceph-mon-03 : ok=9 changed=8 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
ceph-osd-01 : ok=9 changed=8 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
ceph-osd-02 : ok=9 changed=8 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
ceph-osd-03 : ok=9 changed=8 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
以在节点上创建的Ceph管理员用户身份测试ssh。
$ ssh [email protected]2 Warning: Permanently added 'ceph-mon-02,172.16.20.11' (ECDSA) to the list of known hosts. Welcome to Ubuntu 20.04 LTS (GNU/Linux 5.4.0-28-generic x86_64) * Documentation: https://help.ubuntu.com * Management: https://landscape.canonical.com * Support: https://ubuntu.com/advantage The programs included with the Ubuntu system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright. Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. To run a command as administrator (user "root"), use "sudo ". See "man sudo_root" for details. [email protected]:~$ sudo su - [email protected]:~# logout[email protected]:~$ exit logout Connection to ceph-mon-01 closed.
配置/ etc / hosts
如果尚未在所有群集服务器上激活为主机名配置的DNS，请在所有节点上更新/ etc / hosts。
要更改的剧本是：
$ vim update-hosts.yml
---
- name: Prepare ceph nodes
hosts: ceph_nodes
become: yes
become_method: sudo
tasks:
- name: Clean /etc/hosts file
copy:
content: ""
dest: /etc/hosts
- name: Update /etc/hosts file
blockinfile:
path: /etc/hosts
block: |
127.0.0.1 localhost
172.16.20.10 ceph-mon-01
172.16.20.11 ceph-mon-02
172.16.20.12 ceph-mon-03
172.16.20.13 ceph-osd-01
172.16.20.14 ceph-osd-02
172.16.20.15 ceph-osd-03
剧本执行：
$ ansible-playbook -i hosts update-hosts.yml --private-key ~/.ssh/id_rsa_jmutai
PLAY [Prepare ceph nodes] ******************************************************************************************************************************
TASK [Gathering Facts] *********************************************************************************************************************************
ok: [ceph-mon-01]
ok: [ceph-osd-02]
ok: [ceph-mon-03]
ok: [ceph-mon-02]
ok: [ceph-osd-01]
ok: [ceph-osd-03]
TASK [Clean /etc/hosts file] ***************************************************************************************************************************
changed: [ceph-mon-02]
changed: [ceph-mon-01]
changed: [ceph-osd-01]
changed: [ceph-osd-02]
changed: [ceph-mon-03]
changed: [ceph-osd-03]
TASK [Update /etc/hosts file] **************************************************************************************************************************
changed: [ceph-mon-02]
changed: [ceph-mon-01]
changed: [ceph-osd-01]
changed: [ceph-osd-02]
changed: [ceph-mon-03]
changed: [ceph-osd-03]
PLAY RECAP *********************************************************************************************************************************************
ceph-mon-01 : ok=3 changed=2 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
ceph-mon-02 : ok=3 changed=2 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
ceph-mon-03 : ok=3 changed=2 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
ceph-osd-01 : ok=3 changed=2 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
ceph-osd-02 : ok=3 changed=2 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
ceph-osd-03 : ok=3 changed=2 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
确认：
$ ssh [email protected]
$ cat /etc/hosts
# BEGIN ANSIBLE MANAGED BLOCK
127.0.0.1 localhost
172.16.20.10 ceph-mon-01
172.16.20.11 ceph-mon-02
172.16.20.12 ceph-mon-03
172.16.20.13 ceph-osd-01
172.16.20.14 ceph-osd-02
172.16.20.15 ceph-osd-03
# END ANSIBLE MANAGED BLOCK步骤3：在Ubuntu 20.04上部署Ceph 15（Octopus）存储集群
要在Ubuntu 20.04上引导新的Ceph集群，您需要第一个监视器地址（IP或主机名）。
sudo mkdir -p /etc/ceph
cephadm bootstrap
--mon-ip ceph-mon-01
--initial-dashboard-user admin
--initial-dashboard-password [email protected]执行输出：
INFO:cephadm:Verifying podman|docker is present...
INFO:cephadm:Verifying lvm2 is present...
INFO:cephadm:Verifying time synchronization is in place...
INFO:cephadm:Unit chrony.service is enabled and running
INFO:cephadm:Repeating the final host check...
INFO:cephadm:podman|docker (/usr/bin/docker) is present
INFO:cephadm:systemctl is present
INFO:cephadm:lvcreate is present
INFO:cephadm:Unit chrony.service is enabled and running
INFO:cephadm:Host looks OK
INFO:root:Cluster fsid: 8dbf2eda-a513-11ea-a3c1-a534e03850ee
INFO:cephadm:Verifying IP 172.16.20.10 port 3300 ...
INFO:cephadm:Verifying IP 172.16.20.10 port 6789 ...
INFO:cephadm:Mon IP 172.16.20.10 is in CIDR network 172.31.1.1
INFO:cephadm:Pulling latest docker.io/ceph/ceph:v15 container...
INFO:cephadm:Extracting ceph user uid/gid from container image...
INFO:cephadm:Creating initial keys...
INFO:cephadm:Creating initial monmap...
INFO:cephadm:Creating mon...
INFO:cephadm:Waiting for mon to start...
INFO:cephadm:Waiting for mon...
INFO:cephadm:mon is available
INFO:cephadm:Assimilating anything we can from ceph.conf...
INFO:cephadm:Generating new minimal ceph.conf...
INFO:cephadm:Restarting the monitor...
INFO:cephadm:Setting mon public_network...
INFO:cephadm:Creating mgr...
INFO:cephadm:Wrote keyring to /etc/ceph/ceph.client.admin.keyring
INFO:cephadm:Wrote config to /etc/ceph/ceph.conf
INFO:cephadm:Waiting for mgr to start...
INFO:cephadm:Waiting for mgr...
INFO:cephadm:mgr not available, waiting (1/10)...
INFO:cephadm:mgr not available, waiting (2/10)...
INFO:cephadm:mgr not available, waiting (3/10)...
INFO:cephadm:mgr not available, waiting (4/10)...
INFO:cephadm:mgr is available
INFO:cephadm:Enabling cephadm module...
INFO:cephadm:Waiting for the mgr to restart...
INFO:cephadm:Waiting for Mgr epoch 5...
INFO:cephadm:Mgr epoch 5 is available
INFO:cephadm:Setting orchestrator backend to cephadm...
INFO:cephadm:Generating ssh key...
INFO:cephadm:Wrote public SSH key to to /etc/ceph/ceph.pub
INFO:cephadm:Adding key to [email protected]'s authorized_keys...
INFO:cephadm:Adding host ceph-mon-01...
INFO:cephadm:Deploying mon service with default placement...
INFO:cephadm:Deploying mgr service with default placement...
INFO:cephadm:Deploying crash service with default placement...
INFO:cephadm:Enabling mgr prometheus module...
INFO:cephadm:Deploying prometheus service with default placement...
INFO:cephadm:Deploying grafana service with default placement...
INFO:cephadm:Deploying node-exporter service with default placement...
INFO:cephadm:Deploying alertmanager service with default placement...
INFO:cephadm:Enabling the dashboard module...
INFO:cephadm:Waiting for the mgr to restart...
INFO:cephadm:Waiting for Mgr epoch 13...
INFO:cephadm:Mgr epoch 13 is available
INFO:cephadm:Generating a dashboard self-signed certificate...
INFO:cephadm:Creating initial admin user...
INFO:cephadm:Fetching dashboard port number...
INFO:cephadm:Ceph Dashboard is now available at:
URL: https://ceph-mon-01:8443/
User: admin
Password: [email protected]
INFO:cephadm:You can access the Ceph CLI with:
sudo /usr/local/bin/cephadm shell --fsid 8dbf2eda-a513-11ea-a3c1-a534e03850ee -c /etc/ceph/ceph.conf -k /etc/ceph/ceph.client.admin.keyring
INFO:cephadm:Please consider enabling telemetry to help improve Ceph:
ceph telemetry on
For more information see:
https://docs.ceph.com/docs/master/mgr/telemetry/
INFO:cephadm:Bootstrap complete.
安装Ceph工具。
cephadm add-repo --release octopus
cephadm install ceph-common根据需要添加监视器。
--- Copy Ceph SSH key ---
ssh-copy-id -f -i /etc/ceph/ceph.pub [email protected]
ssh-copy-id -f -i /etc/ceph/ceph.pub [email protected]
--- Label the nodes with mon ---
ceph orch host label add ceph-mon-01 mon
ceph orch host label add ceph-mon-02 mon
ceph orch host label add ceph-mon-03 mon
--- Add nodes to the cluster ---
ceph orch host add ceph-mon-02
ceph orch host add ceph-mon-03
--- Apply configs ---
ceph orch apply mon ceph-mon-02
ceph orch apply mon ceph-mon-03显示主机和标签的列表。
# ceph orch host ls
HOST ADDR LABELS STATUS
ceph-mon-01 ceph-mon-01 mon
ceph-mon-02 ceph-mon-02 mon
ceph-mon-03 ceph-mon-03 mon正在运行的容器：
# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
7d666ae63232 prom/alertmanager "/bin/alertmanager -…" 3 minutes ago Up 3 minutes ceph-8dbf2eda-a513-11ea-a3c1-a534e03850ee-alertmanager.ceph-mon-01
4e7ccde697c7 prom/prometheus:latest "/bin/prometheus --c…" 3 minutes ago Up 3 minutes ceph-8dbf2eda-a513-11ea-a3c1-a534e03850ee-prometheus.ceph-mon-01
9fe169a3f2dc ceph/ceph-grafana:latest "/bin/sh -c 'grafana…" 8 minutes ago Up 8 minutes ceph-8dbf2eda-a513-11ea-a3c1-a534e03850ee-grafana.ceph-mon-01
c8e99deb55a4 prom/node-exporter "/bin/node_exporter …" 8 minutes ago Up 8 minutes ceph-8dbf2eda-a513-11ea-a3c1-a534e03850ee-node-exporter.ceph-mon-01
277f0ef7dd9d ceph/ceph:v15 "/usr/bin/ceph-crash…" 9 minutes ago Up 9 minutes ceph-8dbf2eda-a513-11ea-a3c1-a534e03850ee-crash.ceph-mon-01
9de7a86857aa ceph/ceph:v15 "/usr/bin/ceph-mgr -…" 10 minutes ago Up 10 minutes ceph-8dbf2eda-a513-11ea-a3c1-a534e03850ee-mgr.ceph-mon-01.qhokxo
d116bc14109c ceph/ceph:v15 "/usr/bin/ceph-mon -…" 10 minutes ago Up 10 minutes ceph-8dbf2eda-a513-11ea-a3c1-a534e03850ee-mon.ceph-mon-01步骤4：部署Ceph OSD
将群集的公共SSH密钥安装在新OSD节点上的root用户的authorized_keys文件中。
ssh-copy-id -f -i /etc/ceph/ceph.pub [email protected]
ssh-copy-id -f -i /etc/ceph/ceph.pub [email protected]
ssh-copy-id -f -i /etc/ceph/ceph.pub [email protected]告诉Ceph，新节点是集群的一部分。
--- Add hosts to cluster ---
ceph orch host add ceph-osd-01
ceph orch host add ceph-osd-02
ceph orch host add ceph-osd-03
--- Give new nodes labels ---
ceph orch host label add ceph-osd-01 osd
ceph orch host label add ceph-osd-02 osd
ceph orch host label add ceph-osd-03 osd显示存储节点上的所有设备。
# ceph orch device ls
HOST PATH TYPE SIZE DEVICE AVAIL REJECT REASONS
ceph-mon-01 /dev/sda hdd 76.2G QEMU_HARDDISK_drive-scsi0-0-0-0 False locked
ceph-mon-02 /dev/sda hdd 76.2G QEMU_HARDDISK_drive-scsi0-0-0-0 False locked
ceph-mon-03 /dev/sda hdd 76.2G QEMU_HARDDISK_drive-scsi0-0-0-0 False locked
ceph-osd-01 /dev/sdb hdd 50.0G HC_Volume_5680482 True
ceph-osd-01 /dev/sda hdd 76.2G QEMU_HARDDISK_drive-scsi0-0-0-0 False locked
ceph-osd-02 /dev/sdb hdd 50.0G HC_Volume_5680484 True
ceph-osd-02 /dev/sda hdd 76.2G QEMU_HARDDISK_drive-scsi0-0-0-0 False locked
ceph-osd-03 /dev/sdb hdd 50.0G HC_Volume_5680483 True
ceph-osd-03 /dev/sda hdd 76.2G QEMU_HARDDISK_drive-scsi0-0-0-0 False locked 如果满足以下所有条件，则认为存储设备可用：
- 该设备不能有分区。
- 设备不得具有LVM状态。
- 请勿安装设备。
- 设备不能有文件系统。
- 该设备不得包含Ceph BlueStore OSD。
- 设备必须大于5 GB。
指示Ceph使用可用的未使用的存储设备。
# ceph orch daemon add osd ceph-osd-01:/dev/sdb Created osd(s) 0 on host 'ceph-osd-01' # ceph orch daemon add osd ceph-osd-02:/dev/sdb Created osd(s) 1 on host 'ceph-osd-02' # ceph orch daemon add osd ceph-osd-03:/dev/sdb Created osd(s) 1 on host 'ceph-osd-03'
检查ceph的状态。
# ceph -s
cluster:
id: 8dbf2eda-a513-11ea-a3c1-a534e03850ee
health: HEALTH_OK
services:
mon: 1 daemons, quorum ceph-mon-01 (age 23m)
mgr: ceph-mon-01.qhokxo(active, since 22m), standbys: ceph-mon-03.rhhvzc
osd: 3 osds: 3 up (since 36s), 3 in (since 36s)
data:
pools: 1 pools, 1 pgs
objects: 1 objects, 0 B
usage: 3.0 GiB used, 147 GiB / 150 GiB avail
pgs: 1 active+clean第5步：访问Ceph仪表板
Ceph仪表板现在在活动MGR服务器的地址处可用。
# ceph -s看起来像这样：
URL: https://ceph-mon-01:8443/
User: admin
Password: [email protected]使用您的凭据登录以访问Ceph管理仪表板。
享受通过Cephadm和容器在Ubuntu 20.04上管理Ceph Storage Cluster的乐趣。以下文章将介绍添加OSD，删除OSD，配置RGW等。保持联系以获取更新。
这是续集。
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这是续集。
这是续集。
这是续集。