LVS的配置详解配置

March 31st, 2006

Red Hat Cluster Manager
安装操作系统，选择组件advance server，安装LVS部分。
两台主机，主机名为haha和hehe
主机haha的本地ip地址为net0:192.168.2.11，net1:192.168.2.14
主机hehe的本地ip地址为net0:192.168.2.12，net1:192.168.2.16
（主机网络连线只能用直连线进行连接，不能用交叉线连接，否则双机不能进行监控）
修改/etc/hosts文件，封掉localhost行的内容，写入本地主机、对方主机和虚拟主机相应的ip地址和主机名：（两台主机配置相同）
192.168.2.11 haha
192.168.2.12 hehe
192.168.2.13 xixi
进入/etc/sysconfig/rawdevices文件，增加两行内容：（两台主机设置相同）
/dev/raw/raw1 /dev/sdb1
/dev/raw/raw2 /dev/sdb2
以上两行是LVS需要的两个裸设备作为系统监控使用，每个裸设备的空间不能小于10M。当然需要fdisk建立两个两个相应的设备。
然后从起主机，进入/sbin下，./cluconfig进行cluster的配置：
Red Hat Cluster Manager Configuration Utility (running on haha) –haha为本地主机名
Enter cluster name [Red Hat Cluster Manager]:xixi –xixi为虚拟主机名
Enter IP address for cluster alias [NONE]:192.168.2.13 –地址为虚拟地址
——————————–
Information for Cluster Member 0
——————————–
Enter name of cluster member [haha]: –本地成员，回车即可
Enter number of heartbeat channels (minimum = 1) [1]: 2 –两块网卡心跳线（也可串口心跳）
Channel type: net or serial [net]: –第一块网卡做心跳
Enter hostname of the cluster member on heartbeat channel 0 [haha]: –心跳线成员名称
Channel type: net or serial [net]: –第二块网卡做心跳线
Enter hostname of the cluster member on heartbeat channel 1:hehe –另外一个成员名称
Information about Quorum Partitions
Enter Primary Quorum Partition [/dev/raw/raw1]:
Enter Shadow Quorum Partition [/dev/raw/raw2]:
Information About the Power Switch That Power Cycles Member ‘haha’
Choose one of the following power switches:
o NONE
o RPS10
o BAYTECH
o APCSERIAL
o APCMASTER
o WTI_NPS
o SW_WATCHDOG
Power switch [NONE]:
——————————–
Information for Cluster Member 1
——————————–
Enter name of cluster member:hehe –对方成员名
Enter hostname of the cluster member on heartbeat channel 0: hehe
Enter hostname of the cluster member on heartbeat channel 1: haha
Information about Quorum Partitions
Enter Primary Quorum Partition [/dev/raw/raw1]:
Enter Shadow Quorum Partition [/dev/raw/raw2]:
Information About the Power Switch That Power Cycles Member ‘hehe’
Choose one of the following power switches:
o NONE
o RPS10
o BAYTECH
o APCSERIAL
o APCMASTER
o WTI_NPS
o SW_WATCHDOG
Power switch [NONE]:
Save the cluster member information? yes/no [yes]: –对配置信息进行保存
Save the cluster member information? yes/no [yes]:
Writing to configuration file…done
Configuration information has been saved to /etc/cluster.conf.
—————————-
Setting up Quorum Partitions
—————————-
Running cludiskutil -I to initialize the quorum partitions: done
Saving configuration information to quorum partitions: done
Do you wish to allow remote monitoring of the cluster? yes/no [yes]: –是否允许远程主机进行cluster监视访问
Configuration on this member is complete.
To configure the next member, invoke the following command on that system:
# /sbin/cluconfig –init=/dev/raw/raw1
Refer to the Red Hat Cluster Manager Installation and Administration Guide
for details.
本地主机配置完成
进入对方主机的/sbin目录，执行cluconfig –init=/dev/raw/raw1显示信息如下：
Information about Channel 0
/sbin/cluconfig: [: haha: unary operator expected
Looking for host haha (may take a few seconds)…
Information about Channel 1
/sbin/cluconfig: [: hehe: unary operator expected
Looking for host hehe (may take a few seconds)…
Information about Quorum Partitions
Information About the Power Switch That Power Cycles Member ‘haha’
Note: Operating a cluster without a remote power switch does not pr
maximum data integrity guarantees.
——————————–
Information for Cluster Member 1
——————————–
/sbin/cluconfig: [: hehe: unary operator expected
Looking for host hehe (may take a few seconds)…
Information about Channel 0
/sbin/cluconfig: [: hehe: unary operator expected
Looking for host hehe (may take a few seconds)…
Information about Channel 1
/sbin/cluconfig: [: haha: unary operator expected
Looking for host haha (may take a few seconds)…
Hostname does not map to any interface. Keep your selection? [yes]:
Information about Quorum Partitions
Information About the Power Switch That Power Cycles Member ‘hehe’
Note: Operating a cluster without a remote power switch does not provide
maximum data integrity guarantees.
Press <Return> to continue. –按回车继续
Cluster name: xixi
Cluster alias IP address: 192.168.2.13
——————–
Member 0 Information
——————–
Name: haha
Primary quorum partition: /dev/raw/raw1
Shadow quorum partition: /dev/raw/raw2
Heartbeat channels: 2
Channel type: net, Name: haha
Channel type: net, Name: hehe
Power switch IP address or hostname: haha
Identifier on power controller for member haha: un
——————–
Member 1 Information
——————–
Name: hehe
Primary quorum partition: /dev/raw/raw1
Shadow quorum partition: /dev/raw/raw2
Heartbeat channels: 2
Channel type: net, Name: hehe
Channel type: net, Name: haha
Power switch IP address or hostname: hehe
Identifier on power controller for member hehe: un
————————–
Power Switch 0 Information
————————–
Power switch IP address or hostname: haha
Type: NONE
Login or port: unused
Password: unused
————————–
Power Switch 1 Information
————————–
Power switch IP address or hostname: hehe
Type: NONE
Login or port: unused
Password: unused
Save the cluster member information? yes/no [yes]: –是否进行保存
Writing to configuration file…done
Configuration information has been saved to /etc/cluster.conf.
Saving configuration information to quorum partitions: done
Do you wish to allow remote monitoring of the cluster? yes/no [yes]:
—————————————————————-
Configuration on this member is complete.
Execute “/sbin/service cluster start” to start the cluster software.
这时，双机软件基本配置已经完成，在两台主机上分别运行service cluster start启动服务
通过cluadmin进行管理，如下所示：
cluadmin> cluster status
Cluster Status Monitor (xixi) 11:16:11
Cluster alias: xixi
========================= M e m b e r S t a t u s ==========================
Member Status Node Id Power Switch
————– ———- ———- ————
haha Up 0 Good
hehe Up 1 Good
========================= H e a r t b e a t S t a t u s ====================
Name Type Status
—————————— ———- ————
haha <–> hehe network ONLINE
========================= S e r v i c e S t a t u s ========================
Last Monitor Restart
Service Status Owner Transition Interval Count
————– ——– ————– —————- ——– ——-
cluadmin>
通过状态可以看到双机状态正常，但未加入任何服务，通过help可以看到帮助：
cluadmin> help
cluster service apropos clear help version exit quit
cluadmin> service add –加入一个服务
Service name: disk –服务名称
Preferred member [None]:haha –首选成员
User script (e.g., /usr/foo/script or None) [None]: –用户脚本
Status check interval [0]: –状态检测间隔
Do you want to add an IP address to the service (yes/no/?) [no]:
Do you want to add a disk device to the service (yes/no/?) [no]: yes –加disk设备
Disk Device Information
Device special file (e.g., /dev/sdb4): /dev/sdb3 –设备名称
Filesystem type (e.g., ext2, or ext3): ext2 –文件系统类型
Mount point (e.g., /usr/mnt/service1) [None]: /mnt –mount点
Mount options (e.g., rw,nosuid,sync):
Forced unmount support (yes/no/?) [yes]: –是否强制unmount
Would you like to allow NFS access to this filesystem (yes/no/?) [no]:
Would you like to share to Windows clients (yes/no/?) [no]:
Do you want to (a)dd, (m)odify, (d)elete or (s)how DEVICES, or are you (f)inishe
d adding DEVICES [f]:
Add disk service as shown? (yes/no/?) yes –是否加入服务
0) haha
1) hehe
c) cancel
Choose member to start service on: 0 –在首选哪台主机启动
Added disk. –加入服务成功