在-Red-Hat-Enterprise-Linux-5-上搭建基于-xen-的-mysql-高可用性集群.pdf

在 Red Hat Enterprise Linux 5 上搭建基于 xen 的 mysql 高可用性集群 (普通脚本方式) Name: Yunlin Fang MSN: cst05 1@ Gtalk: cst05 1@ Site: Email: cst05 1@ Date: Fri Dec 25 14:01:46 CST 2 9 Version: 4 首先确保 Dom0 上装了 Cluster 和 Cluster Storage 这两个组。 安装 iscsi 服务组件 [root@dhcp-0-104 ~]# yum install -y scsi-target-utils 创建用以共享存储的设备 [root@dhcp-0-104 ~]# lvcreate -i 2 -I 32 -L 4G -n sharedevice vg0 Logical volume sharedevice created [root@dhcp-0-104 ~]# 配置共享存储 [root@dhcp-0-104 ~]# chkconfig --level 35 tgtd on [root@dhcp-0-104 ~]# service tgtd start Starting SCSI target daemon: [ OK ] [root@dhcp-0-104 ~]# tgt-setup-lun -d /dev/vg0/sharedevice -n sharedevice 192.168.2 .1 192.168.2 .101 Creating the new target (iqn.2 1-04.com.dhcp-0-104-sharedevice) Adding a logical unit (/dev/vg0/sharedevice) to the target Accepting connections only from 192.168.2 .1 192.168.2 .101 [root@dhcp-0-104 ~]# tgt-admin --dump /etc/tgt/targets.conf [root@dhcp-0-104 ~]# cat /etc/tgt/targets.conf default-driver iscsi target iqn.2 1-04.com.dhcp-0-104-sharedevice backing-store /dev/vg0/sharedevice initiator-address 192.168.2 .1 initiator-address 192.168.2 .101 /target [root@dhcp-0-104 ~]# 创建虚拟机存储 [root@dhcp-0-104 ~]# lvcreate -i 2 -I 32 -L 8G -n mysql-a vg0 Logical volume mysql_a created [root@dhcp-0-104 ~]# lvcreate -i 2 -I 32 -L 8G -n mysql-b vg0 Logical volume mysql_b created [root@dhcp-0-104 ~]# 安装虚拟机，把该装的东西也都装了，顺便也装上mysql。 在 Dom 0 上配置 fence 设备 修 /etc/hosts ，内容如下 [root@dhcp-0-104 ~]# cat /etc/hosts # Do not remove the following line, or various programs # that require network functionality will fail. localhost.localdomain localhost ::1 localhost6.localdomain6 localhost6 192.168.2 .254 fenced 192.168.2 .1 mysql-a 192.168.2 .101 mysql-b [root@dhcp-0