系统：DVD最小化安装centos6.4系统
(centos5 yum 安装 需要开启extras源)
主机：
Ⅰ.HOSTNAME：vm01-centos ip：192.168.0.55
Ⅱ.HOSTNAME：vm02-centos ip：192.168.0.82
drbd版本：drbd-8.4.3
原理
+------------+
| 文件系统 |
+------------+
|
V
+----------------+
| 块设备层 |
| (/dev/drbd0) |
+----------------+
| |
| |
V V
+---------------+ +-------------------+
| 本地硬盘 | |远程主机硬盘 |
|(/dev/xvdb5)| | (/dev/xvdb5) |
+---------------+ +-------------------+
step.1.安装
依赖环境
yum install glib2-devel libtool-ltdl-devel net-snmp-devel bzip2-devel \
ncurses-devel openssl-devel libtool libxml2-devel gettext bison flex zlib-devel \
mailx which libxslt-devel docbook-dtds docbook-style-xsl PyXML shadow-utils opensp \autoconf automake make cmake libuuid-devel libxslt libxslt-devel libgcrypt-devel pkgconfig \
libgpg-error-devel sgml-common opensp openjade xml-common docbook-dtds flex rpm-build \
kernel-devel gcc xfsprogs xfsdump -y
|
mkdir -p /root/rpmbuild/SOURCES
|
关闭iptables,selinux
service iptables stop
chkconfig iptables off
setenforce 0 sed -i 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config
|
编译安装
tar zxvf drbd-8.4.3.tar.gzcd drbd-8.4.3
./configure --with-utils --with-udev --with-xen --with-heartbeat --with-pacemaker --with-rgmanager --with-bashcompletionmake rpm
make km-rpmcd /root/rpmbuild/RPMS/x86_64
rpm -ivh drbd-*.rpm
|
step.2.配置
vi /etc/drbd.d/global_common.conf
|
global {
usage-count yes;}common {
handlers {
pri-on-incon-degr "/usr/lib/drbd/notify-pri-on-incon-degr.sh; /usr/lib/drbd/notify-emergency-reboot.sh; echo b > /proc/sysrq-trigger ; reboot -f";
pri-lost-after-sb "/usr/lib/drbd/notify-pri-lost-after-sb.sh; /usr/lib/drbd/notify-emergency-reboot.sh; echo b > /proc/sysrq-trigger ; reboot -f";
local-io-error "/usr/lib/drbd/notify-io-error.sh; /usr/lib/drbd/notify-emergency-shutdown.sh; echo o > /proc/sysrq-trigger ; halt -f"; }
startup {
wfc-timeout 30;
degr-wfc-timeout 30;
outdated-wfc-timeout 30; # wait-after-sb
}
options {
# cpu-mask on-no-data-accessible
}
disk {
on-io-error detach;
fencing resource-and-stonith;
resync-rate 15M; }
net {
protocol C;
cram-hmac-alg sha1;
shared-secret "YOEKEY-_-"; }}
|
vi /etc/drbd.d/vm00-centos.res
|
resource vm00-centos {device /dev/drbd0;
disk /dev/vg_drbd01/lv_drbd01;
meta-disk internal;
on vm01-centos {address 192.168.0.55:9876;}on vm02-centos {address 192.168.0.82:9876;}}
|
主从服务器创建相同大小的lvm
fdisk -l /dev/xvdb
Device Boot Start End Blocks Id System/dev/xvdb1 1 652 5237158+ 5 Extended/dev/xvdb5 1 652 5237127 8e Linux LVM
pvcreate /dev/xvdb5
vgcreate vg_drbd01 /dev/xvdb5
vgchange -a y vg_drbd01
vgdisplay vg_drbd01 |grep "Total PE"
Total PE 1278lvcreate -l 1278 -n lv_drbd01 vg_drbd01
modprobe drbd
drbdadm create-md vm00-centos
drbdadm up vm00-centos
|
两个服务器执行上面相同操作
========================
选择主服务器
drbdadm primary vm00-centos#提升为主服务器成功后drbd-overview 0:vm00-centos/0 Connected Primary/Secondary UpToDate/UpToDate C r----- /DATA xfs 5.0G 33M 5.0G 1%mkfs.xfs /dev/drbd0mkdir /DATAmount /dev/drbd0 /DATA/df -hFilesystem Size Used Avail Use% Mounted on/dev/mapper/VolGroup00-LogVol00
8.7G 1.2G 7.1G 15% /tmpfs 497M 0 497M 0% /dev/shm/dev/xvda1 194M 27M 158M 15% /boot/dev/drbd0 5.0G 33M 5.0G 1% /DATA
|
切换主从服务器
1.主服务器降级
umount /DATA/drbdadm secondary vm00-centos
|
2.从服务器升级
drbdadm primary vm00-centos
mkdir /DATAmount /dev/drbd0 /DATA/
转载于:https://blog.51cto.com/caidui/1676016
![更改LYNC SIP地址[图]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)