9.Ceph部署

**Ceph 部署指南**

**前言**

Ceph 是一个开源的分布式存储系统，支持块设备、文件系统和对象存储。它能够提供高性能、高可用性和灵活性的存储解决方案。以下是 Ceph 的部署指南。

**环境准备**

* 操作系统：CentOS7.x 或 Ubuntu18.04* 硬件配置：
* 每个节点至少4 个 CPU 核心 * 每个节点至少16 GB 内存 * 每个节点至少1 TB 存储空间* 软件包：
* Ceph-ansible（用于部署和管理 Ceph 集群）
* cephadm（用于部署和管理 Ceph 集群）

**步骤一：准备环境**

### 安装依赖包

bash# CentOSsudo yum install -y epel-releasesudo yum install -y ansible git python3-pippip3 install --upgrade pippip3 install ceph-ansible# Ubuntusudo apt-get updatesudo apt-get install -y software-propertiessudo add-apt-repository ppa:ceph/cephsudo apt-get updatesudo apt-get install -y ansible git python3-pippip3 install --upgrade pippip3 install ceph-ansible

bash# CentOSsudo cp /etc/ceph-ansible/hosts.sample /etc/ceph-ansible/hostssudo vi /etc/ceph-ansible/hosts# Ubuntusudo cp /etc/ceph-ansible/hosts.sample /etc/ceph-ansible/hostssudo vi /etc/ceph-ansible/hosts

bash[mon]
192.168.1.100 ceph-mon-01[osd]
192.168.1.101 ceph-osd-01192.168.1.102 ceph-osd-02192.168.1.103 ceph-osd-03[mds]
192.168.1.104 ceph-mds-01[mgr]
192.168.1.105 ceph-mgr-01

bashsudo vi /etc/ceph/ceph.conf

bash[global]
fsid =12345678-1234-1234-1234-123456789012mon_initial_members = ceph-mon-01mon_host =192.168.1.100osd_pool_default_size =2osd_pool_default_min_size =1osd_pool_default_max_size =3auth_cluster_required = trueauth_service_required = falseauth_client_required = false

bashsudo cp /etc/ceph-ansible/playbook.yml.sample /etc/ceph-ansible/playbook.ymlsudo vi /etc/ceph-ansible/playbook.yml

yml---
- name: Ceph deployment playbook hosts: all become: yes tasks:
 - name: Install dependencies apt:
 name: "{{ item }}"
 state: present loop:
 - ceph - cephadm - name: Configure Ceph cluster template:
 src: templates/ceph.conf.j2 dest: /etc/ceph/ceph.conf notify: restart ceph - name: Start Ceph services service:
 name: "{{ item }}"
 state: started loop:
 - ceph-mon - ceph-osd - ceph-mds - ceph-mgr

bashsudo ansible-playbook /etc/ceph-ansible/playbook.yml

bashsudo systemctl status ceph-monsudo systemctl status ceph-osdsudo systemctl status ceph-mdssudo systemctl status ceph-mgr

bashceph -s

bashceph osd tree

bashceph mds stat

bashsudo ceph osd pool create mypool22

bashsudo ceph fs new myfs1

bashceph osd pool stats mypoolceph fs stat myfs