DRBD安装配置

DRBD安装配置

测试环境

[root@drbd1 ~]# uname -r

3.10.0-862.el7.x86_64

[root@drbd1 ~]# cat /etc/redhat-release

CentOS Linux release 7.5.1804 (Core)

Host machime	hostname	IP Address
Host1	Drbd1	192.168.85.71
Host2	Drbd2	192.168.85.72

安装DBBD

1.设置IP地址

#vi /etc/sysconfig/network-scripts/ifcfg-en33

TYPE=Ethernet

PROXY_METHOD=none

BROWSER_ONLY=no

BOOTPROTO=static

IPADDR=192.168.85.71

NETMASK=255.255.255.0

GATEWAY=192.168.85.2

DNS1=192.168.85.2

DEFROUTE=yes

IPV4_FAILURE_FATAL=no

IPV6INIT=yes

IPV6_AUTOCONF=yes

IPV6_DEFROUTE=yes

IPV6_FAILURE_FATAL=no

IPV6_ADDR_GEN_MODE=stable-privacy

NAME=ens33

UUID=1acc8480-c3dc-4f29-9945-82afac9a68b3

DEVICE=ens33

ONBOOT=yes

1. 设置主机名

#hostnamectl  set-hostname  drbd1

1. 设置主机名解析

#vi /etc/hosts

192.168.85.71 drbd1

192.168.85.72 drbd2

4.关闭防火墙

#systemctl disable firewalld

#setenforce 0

5. 安装DRBD

#rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org

# rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm

#yum install drbd90 kmod-drbd90

配置DRBD

#vi /etc/drbd.d/r0.res

resource r0 {

        on drbd1 {

                device  /dev/drbd1;

                disk    /dev/sdb1;

                address 192.168.85.71:7789;

                meta-disk internal;

        }

        on drbd2 {

                device  /dev/drbd1;

                disk    /dev/sdb1;

                address 192.168.85.72:7789;

                meta-disk internal;

        }

}

# drbdadm create-md r0

# drbdadm up r0

# drbdadm status r0

r0 role:Secondary

  disk:Inconsistent

  drbd2 connection:Connecting

# drbdadm primary --force r0（此命令只能在一个节点上执行一次）

[root@drbd1 ~]# drbdadm status r0

r0 role:Primary

  disk:UpToDate

  drbd2 role:Secondary

    replication:SyncSource peer-disk:Inconsistent done:25.00

[root@drbd1 ~]# drbdadm status r0

r0 role:Primary

  disk:UpToDate

  drbd2 role:Secondary

    peer-disk:UpToDate