基于ISCSI共享存储的KVM高可用群集配置.docx-资料库

e0054cc6-d42b-498a-9381-d1e8371ad70d.docx.pdf-第1页.png

第1页 / 共17页

e0054cc6-d42b-498a-9381-d1e8371ad70d.docx.pdf-第2页.png

第2页 / 共17页

e0054cc6-d42b-498a-9381-d1e8371ad70d.docx.pdf-第3页.png

第3页 / 共17页

e0054cc6-d42b-498a-9381-d1e8371ad70d.docx.pdf-第4页.png

第4页 / 共17页

e0054cc6-d42b-498a-9381-d1e8371ad70d.docx.pdf-第5页.png

第5页 / 共17页

e0054cc6-d42b-498a-9381-d1e8371ad70d.docx.pdf-第6页.png

第6页 / 共17页

e0054cc6-d42b-498a-9381-d1e8371ad70d.docx.pdf-第7页.png

第7页 / 共17页

e0054cc6-d42b-498a-9381-d1e8371ad70d.docx.pdf-第8页.png

第8页 / 共17页

目录实验目的：运行的虚拟机可以在线平滑迁移，不会终端虚拟机运行的业务高可用架构： pacemaker+corosync 并由 pcs 进行管理系统环境：三台机器都是最新的 centos7.6 所需组件： DLM，gfs2，clvm,pcs，pacemeker，corosync，libvirtd，qemu，qemu-img 约束关系： DLM >> CLVM >> GFS2 文件系统 >> VirtualDomain........................................................................2 需求分析 ............................................................................................................................................ 2 一、准备阶段：................................................................................................................................ 3 1.1、基础环境配置 ...................................................................................................................3 修改主机名........................................................................................................................ 4 网络：................................................................................................................................ 4 做主备链路聚合................................................................................................................ 4 修改主机映射 .................................................................................................................... 5 配置 yum 源.......................................................................................................................6 配置 ssh..............................................................................................................................6 关闭防火墙........................................................................................................................ 7 1.2 KVM 宿主机节点软件安装................................................................................................. 7 1.3 集群软件包安装.................................................................................................................7 二、ISCSI 服务器的配置 ................................................................................................................... 9 安装 targetcli 软件包.................................................................................................................9 新建两个磁盘，...................................................................................................................... 10 计算节点修改 iqn....................................................................................................................10 发现 iscsi 端 iqn....................................................................................................................... 10 连接：...................................................................................................................................... 11 三、配置 STONITH 隔离设备, DLM 分布式锁和 gfs2 文件系统 ...............................................11 3.1 配置 stonith 仲裁设备 ......................................................................................................11 添加资源 .......................................................................................................................... 11 使用 sdb 的 wwn 号做 stonith 隔离设备 .......................................................................11 3.2 配置 dlm 分布锁................................................................................................................12 3.3 修改 lvm 的配置默认值 ....................................................................................................12 重启查看状态 .......................................................................................................................... 13 3.4 向集群中添加 clvm 资源 .................................................................................................. 13 添加克隆的资源..............................................................................................................13 查看约束：...................................................................................................................... 13 添加约束：...................................................................................................................... 13 3.5 在集群中创建 lvm，并挂载 gfs2 文件系统 ....................................................................14 创建磁盘 .......................................................................................................................... 14 添加克隆资源 .................................................................................................................. 15 设置 selinux......................................................................................................................15 四、创建虚拟机及迁移 .................................................................................................................. 15 创建虚拟磁盘 .......................................................................................................................... 16 安装 kvm.................................................................................................................................. 16 迁移测试 .................................................................................................................................. 16

导出 xml 文件 .......................................................................................................................... 16 创建虚拟机.............................................................................................................................. 17 配置约束 .................................................................................................................................. 17 查看约束 .................................................................................................................................. 17 实验目的：运行的虚拟机可以在线平滑迁移，不会终端虚拟机运行的业务高可用架构：pacemaker+corosync 并由 pcs 进行管理系统环境：三台机器都是最新的 centos7.6 所需组件： DLM，gfs2，clvm,pcs，pacemeker，corosync，libvirtd，qemu，qemu-img 约束关系：DLM >> CLVM >> GFS2 文件系统 >> VirtualDomain 需求分析某客户准备采用开源技术构建一个小型的虚拟化环境。初步构想的拓扑结构如下

由两个计算节点构建一个 KVM 群集有三个网络：业务网、存储网、心跳网络计算节点到业务网有两个链路做绑定计算节点、存储节点采用 CentOS 7.6 一个存储节点通过 Linux-IO 提供 iSCSI Target 为计算节点提供 20GB 的 LUN KVM 群集中有一个最小化安装的 CentOS 7.6 虚拟机你需要在 VMware Workstation 中为客户构建一个 POC 的测试环境。一、准备阶段： 1.1、基础环境配置我的系统镜像包是 CentOS-7-x86_64-Everything-1810.iso 版本,大小为 10G 考虑到软件包的完整性所以选择这个安装包，下附下载链接 http://mirrors.aliyun.com/centos/7.6.1810/isos/x86_64/CentOS-7-x86_64-Everything-1810.iso

修改主机名主机映射、网络、ssh、yum、防火墙 hostnamectl set-hostname iscsi hostnamectl set-hostname node1 hostnamectl set-hostname node2 网络： 192.168.1.0 段为存储网络 192.168.2.0 段为心跳网络 192.168.3.0 段为业务网络 Iscsi 节点 192.168.1.14 Node1 节点 192.168.1.15 192.168.2.134 192.168.3.11 Node2 节点 192.168.1.16 192.168.2.135 192.168.3.12 两个计算节点添加 4 块网卡，其中两块网卡做主备链路聚合 nmcli connection add type team con-name team0 ifname team0 config '{"runner": {"name": "activebackup"}}'

nmcli connection modify team0 ipv4.addresses 192.168.3.10 nmcli connection modify team0 ipv4.method manual nmcli connection add type team-slave con-name team0-port1 ifname ens38 master team0 nmcli connection add type team-slave con-name team0-port2 ifname ens39 master team0 重启服务： systemctl restart network 查看 team0 状态 [root@node1 ~]# teamdctl team0 stat setup: runner: activebackup ports: ens38 link watches: link summary: up instance[link_watch_0]: name: ethtool link: up down count: 0 ens39 link watches: link summary: up instance[link_watch_0]: name: ethtool link: up down count: 0 runner: active port: ens38 修改主机映射 192.168.1.14 iscsi

192.168.1.15 node1 192.168.2.134 node1-xt 192.168.3.11 node1-yw 192.168.1.16 node2 192.168.2.135 node2-xt 192.168.3.12 node-yw 配置 yum 源把系统默认的文件删除，创建配置为 [yum] name=yum baseurl=file:///media gpgcheck=0 enabled=1 挂载镜像到/media 目录下 mount -o loop /dev/cdrom /media/ [root@iscsi media]# yum repolist Loaded plugins: fastestmirror, langpacks Determining fastest mirrors yum (1/2): yum/group_gz (2/2): yum/primary_db repo id yum 10,019 repolist: 10,019 [root@iscsi media]# repo name | 3.6 kB | 166 kB | 6.0 MB 00:00 00:00 00:00 status yum 配置 ssh ssh-keygen ssh-copy-id -i /root/.ssh/id_rsa.pub root@192.168.1.14

ssh-copy-id -i /root/.ssh/id_rsa.pub root@192.168.1.15 ssh-copy-id -i /root/.ssh/id_rsa.pub root@192.168.1.16 关闭防火墙 systemctl stop firewalld&&systemctl disable firewalld 1.2 KVM 宿主机节点软件安装虚拟化软件安装（也可以在安装系统的时候在软件包中勾选安装） yum groups install -y "Virtualization Client " 图形化界面安装： yum group install gnome-desktop -y 安装 vnc yum install -y tigervnc-server tigervnc 设置 vnc 密码 vncpasswd 开启服务 vncserver 1.3 集群软件包安装计算节点全部执行

yum install bash-completion ntpdate tigervnc-server iscsi-initiator-utils pacemaker corosync pcs psmisc policycoreutils-python fence-agents-all dlm lvm2-cluster gfs2-utils –y systemctl start pcsd systemctl enable pcsd 1.4 配置 pcs 守护进程创建密码 echo "lgmlgm" | passwd --stdin hacluster 单节点运行：测试登录 [root@node1 ~]# pcs cluster auth node1 node2 -u hacluster -p lgmlgm node1: Authorized node2: Authorized 生成 corosync 配置文件 [root@node1 ~]# pcs cluster setup --name kvm-ha-cluster node1 node2 Destroying cluster on nodes: node1, node2... node2: Stopping Cluster (pacemaker)... node1: Stopping Cluster (pacemaker)... node1: Successfully destroyed cluster node2: Successfully destroyed cluster Sending 'pacemaker_remote authkey' to 'node1', 'node2' node2: successful distribution of the file 'pacemaker_remote authkey' node1: successful distribution of the file 'pacemaker_remote authkey' Sending cluster config files to the nodes... node1: Succeeded node2: Succeeded Synchronizing pcsd certificates on nodes node1, node2... node1: Success node2: Success Restarting pcsd on the nodes in order to reload the certificates... node1: Success

资料库

基于ISCSI共享存储的KVM高可用群集配置.docx

相关推荐

服务器应用

热门标签

最新资料