1.配置dns,保证机器能够使用公网网络源
2.额外添加几个盘,做为数据盘,此处我加了/dev/vdb /dev/vdc /dev/vdd三块100G的盘linux
添加centos源和epel源,本文所有使用阿里云的源centos
[root@dev179 ~] rm /etc/yum.repos.d/* -rf [root@dev179 ~] curl http://mirrors.aliyun.com/repo/Centos-7.repo > /etc/yum.repos.d/Centos-7.repo [root@dev179 ~] curl http://mirrors.aliyun.com/repo/epel-7.repo > /etc/yum.repos.d/epel.repo
添加ceph源,在/etc/yum.repos.d/目录下建立ceph.repo
文件,粘贴如下内容服务器
[Ceph-SRPMS] name=Ceph SRPMS packages baseurl=https://mirrors.aliyun.com/ceph/rpm-jewel/el7/SRPMS/ enabled=1 gpgcheck=0 type=rpm-md [Ceph-aarch64] name=Ceph aarch64 packages baseurl=https://mirrors.aliyun.com/ceph/rpm-jewel/el7/aarch64/ enabled=1 gpgcheck=0 type=rpm-md [Ceph-noarch] name=Ceph noarch packages baseurl=https://mirrors.aliyun.com/ceph/rpm-jewel/el7/noarch/ enabled=1 gpgcheck=0 type=rpm-md [Ceph-x86_64] name=Ceph x86_64 packages baseurl=https://mirrors.aliyun.com/ceph/rpm-jewel/el7/x86_64/ enabled=1 gpgcheck=0 type=rpm-md
更新源网络
[root@dev179 ~] yum clean all [root@dev179 ~] yum makecache
// 关闭selinux [root@dev179 ~] sed -i 's/SELINUX=.*/SELINUX=disabled/' /etc/selinux/config [root@dev179 ~] setenforce 0 // 关闭防火墙 [root@dev179 ~] systemctl stop firewalld [root@dev179 ~] systemctl disable firewalld // 设置服务器ip到/etc/hosts,把1.1.1.1改成服务器的IP地址 [root@dev179 ~] echo 1.1.1.1 $HOSTNAME >> /etc/hosts // 准备临时部署目录 [root@dev179 ~] rm -rf /root/ceph-cluster && mkdir -p /root/ceph-cluster && cd /root/ceph-cluster
// 安装部署软件 [root@dev179 ceph-cluster] yum install ceph ceph-radosgw ceph-deploy -y // 初始化配置,后面的步骤都必须进入/root/ceph-cluster目录中再执行 [root@dev179 ceph-cluster] ceph-deploy new $HOSTNAME // 更新默认配置文件 [root@dev179 ceph-cluster] echo osd pool default size = 1 >> ceph.conf [root@dev179 ceph-cluster] echo osd crush chooseleaf type = 0 >> ceph.conf [root@dev179 ceph-cluster] echo osd max object name len = 256 >> ceph.conf [root@dev179 ceph-cluster] echo osd journal size = 128 >> ceph.conf // 初始化监控节点 [root@dev179 ceph-cluster] ceph-deploy mon create-initial // 准备磁盘,此处/dev/vdb /dev/vdc /dev/vdd根据实际状况修改 [root@dev179 ceph-cluster] ceph-deploy osd prepare $HOSTNAME:/dev/vdb $HOSTNAME:/dev/vdc $HOSTNAME:/dev/vdd
上步prepare后,那3个盘会自动建立文件系统并挂载,经过df查看具体挂载目录app
// 经过df查看具体挂载目录 [root@dev179 ceph-cluster]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/centos-root 50G 1.7G 49G 4% / devtmpfs 1.9G 0 1.9G 0% /dev tmpfs 1.9G 0 1.9G 0% /dev/shm tmpfs 1.9G 8.4M 1.9G 1% /run tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup /dev/vda1 1014M 143M 872M 15% /boot /dev/mapper/centos-home 36G 33M 36G 1% /home tmpfs 380M 0 380M 0% /run/user/0 /dev/vdb1 100G 108M 100G 1% /var/lib/ceph/osd/ceph-0 /dev/vdc1 100G 108M 100G 1% /var/lib/ceph/osd/ceph-1 /dev/vdd1 100G 108M 100G 1% /var/lib/ceph/osd/ceph-2 // 激活osd [root@dev179 ceph-cluster] ceph-deploy osd activate $HOSTNAME:/var/lib/ceph/osd/ceph-0 $HOSTNAME:/var/lib/ceph/osd/ceph-1 $HOSTNAME:/var/lib/ceph/osd/ceph-2
第一次检查会发现是HEALTH_WARN
状态curl
[root@dev179 ceph-cluster]# ceph -s cluster 7775a3a4-7315-41fe-b192-2655b11a83a1 health HEALTH_WARN too few PGs per OSD (21 < min 30) monmap e1: 1 mons at {dev179=172.24.8.179:6789/0} election epoch 3, quorum 0 dev179 osdmap e15: 3 osds: 3 up, 3 in flags sortbitwise,require_jewel_osds pgmap v26: 64 pgs, 1 pools, 0 bytes data, 0 objects 322 MB used, 299 GB / 299 GB avail 64 active+clean
修改pg/pgp值后,集群状态变为HEALTH_OK
ui
[root@dev179 ceph-cluster]# ceph osd pool set rbd pg_num 128 [root@dev179 ceph-cluster]# ceph osd pool set rbd pgp_num 128 [root@dev179 ceph-cluster]# ceph -s cluster 7775a3a4-7315-41fe-b192-2655b11a83a1 health HEALTH_OK monmap e1: 1 mons at {dev179=172.24.8.179:6789/0} election epoch 3, quorum 0 dev179 osdmap e19: 3 osds: 3 up, 3 in flags sortbitwise,require_jewel_osds pgmap v34: 128 pgs, 1 pools, 0 bytes data, 0 objects 322 MB used, 299 GB / 299 GB avail 128 active+clean