环境说明: 1. 硬件: 说明:按照标准至少需要4块网卡和其他相应硬件,但因为条件限制,故在硬件和设置上做了一些变通。 服务器:PE4300、PE4600 网卡:两个 RAID:两块PERC2/SC Storage:PV220S和SCSI cable 2. 软件: OS:RedHat Advance Server 2.1 Kernel: 2.4.9-e.3smp 配制分配: IP: node1: 10.0.0.1/8 node2: 10.0.0.2/8 Cluster IP: 10.0.0.3 这个地址不同于Microsoft下的Cluster server IP address,该地址是用于管理上用的。 基本步骤:
一、安装OS 说明:为了安装可以顺利进行,建议先移掉RAID卡,否则在拷贝完文件后系统不能正常启动。因为,当使用插卡(RAID/SCSI)连接外置磁盘柜,它们将总是优先于本地硬盘被检测,这个将导致本地的盘符被改变。 按照通常的步骤安装OS,在系统安装完后,将RAID或SCSI卡插回主机,在下次重启时系统将自动发现新设备。但为了保证在每次系统引导时该设备能自动启动,你仍需做以下两步: a. 编辑 /etc/modules.conf文件,同时增加下面内容到文件内容中 alias scsi_hostadapter megaraid options scsi_mod max_scsi_luns=255 à可提前增加这一行,因为有共享磁盘柜存 在,并且有多个LUN在上面时,系统要求这样做。 b. 执行 Mkinitrd initrd-2.4.9-e.3smp.img 2.4.9-e.3smp à这行的内容主要还是由内核来决定。 例: /etc/modules.conf: alias scsi_hostadapter megaraid options scsi_mod max_scsi_luns=255
二、物理连接 这部份的步骤与W2K一样,即先用一个节点配制LUN,另一个节点从磁盘读LUN配制,同时保证2块RAID卡的Cluster功能开启,SCSI ID 不能冲突,同时将PV220S的开关拨动到Cluster模式。
三、安装和配制分区 1.建立分驱 说明:建议在此时只开一个节点。在系统启动后,系统可以识别在磁盘柜上新建的LUN。设备名通常是在本地硬盘后顺序编排。例如:当本地是/dev/sda,那么新的设备是/dev/sdb 分区的原则和要求:Quorum分区的要求:不能小于10M,必须是裸设备,不能有文件系统。 Quorum分区只能用于Cluster的状态和配制信息。 Quorum要求两个分区,一个为primary,另一个为slave Cluster 应用服务的分区:要求一个cluster服务一个分区。例如:你想有SQL、NFS、SAMBA三个Cluster应用服务,那么你必须为三个服务各建一个分区。 例:fdisk /dev/sdb 创建新的分区 /dev/sdb1 àQuorum primary partition /dev/sdb2 àQuorum slave partition /dev/sdb3 àSql partition /dev/sdb4 àNFS partition /dev/sdb5 àsamba partition 注意:在创建完分驱后,一定要重启主机,建议重启所有设备。 2.建立文件系统――即格式化分区 说明:Quorum 必须是裸设备,所以不需要格式化。但其他分区必须格式化,同时将默认的Block块大小增大到4096,默认为1024。 例: mkfs –t ext2 –j –b 4096 /dev/sdbx –-》X代表分区 3.为Cluster 创建Quorum分区 说明:使用命令 cat /proc/devices 确认系统是否支持裸设备,如果你看到下面的输出,说明系统可以支持裸设备。 162 raw 在两台服务器上分别编辑/etc/sysconfig/rawdevices文件,以便将分区绑定到裸设备。 例: /etc/sysconfig/rawdevices # format: # # example: /dev/raw/raw1 /dev/sda1 # /dev/raw/raw2 8 5 /dev/raw/raw1 /dev/sdb1 /dev/raw/raw2 /dev/sdb2 重启服务 service rawdevices restart 4.检查和验证Quoram分区 在两个节点上分别cludiskutil –p 确保两个节点都能有以下输出: ----- Shared State Header ------ Magic# = 0x39119fcd Version = 1 Updated on Thu Sep 14 05:43:18 2000 Updated by node 0
四、建立Cluster服务 说明:确保所有网卡正常工作。同时,设置基本的网络要求。 1.编辑/etc/hosts 文件 127.0.0.1 localhost.localdomain localhost 10.0.0.1 node1.test.com node1 10.0.0.2 node2.test.com node2 10.0.0.3 Clusteralias.test.com Clusteralias 2.运行/sbin/clUConfig 说明:系统将自动生成cluster的配制文件/etc/cluster.conf,这一步只需要在其中一个节点上运行。 你将看到以下输出: Enter cluster name [Cluster]:Cluster Enter IP address for cluster alias [x.x.x.x]: 10.0.0.3 -------------------------------- Information for Cluster Member 0 -------------------------------- Enter name of cluster member [storage0]: node1 Looking for host storage0 (may take a few seconds)... Enter number of heartbeat channels (minimum = 1) [1]: 1 Information about Channel 0 Channel type: net or serial [net]: Enter hostname of the cluster member on heartbeat channel 0 \ [node1]: node1 Looking for host node1 (may take a few seconds)... Information about Quorum Partitions Enter Primary Quorum Partition [/dev/raw/raw1]: /dev/raw/raw1 Enter Shadow Quorum Partition [/dev/raw/raw2]: /dev/raw/raw2 Information About the Power Switch That Power Cycles Member ’storage0’ Choose one of the following power switches: o NONE o RPS10 o BAYTECH o APCSERIAL o APCMASTER o WTI_NPS Power switch [NONE]: NONE Information for Cluster Member 1 -------------------------------- Enter name of cluster member [node2]: node2 Looking for host storage1 (may take a few seconds)... Information about Channel 0 Enter hostname of the cluster member on heartbeat channel 0 \ [node2]: node2 Looking for host storage1 (may take a few seconds)... Information about Quorum Partitions Enter Primary Quorum Partition [/dev/raw/raw1]: /dev/raw/raw1 Enter Shadow Quorum Partition [/dev/raw/raw2]: /dev/raw/raw2 Information About the Power Switch That Power Cycles Member ’node2’ Choose one of the following power switches: o NONE o RPS10 o BAYTECH o APCSERIAL o APCMASTER o WTI_NPS Power switch [NONE]: NONE Cluster name: Development Cluster Cluster alias IP address: 10.0.0.154 Cluster alias netmask: 255.255.254.0 -------------------- Member 0 Information -------------------- Name: node1 Primary quorum partition: /dev/raw/raw1 Shadow quorum partition: /dev/raw/raw2 Heartbeat channels: 1 Channel type: net, Name: node1 Power switch IP address or hostname: node1 -------------------- Member 1 Information -------------------- Name: node2 Primary quorum partition: /dev/raw/raw1 Shadow quorum partition: /dev/raw/raw2 Heartbeat channels: 1 Channel type: net, Name: node2 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]: yes ---------------------------------------------------------------- Configuration on this member is complete. To configure the next member, invoke the following command on that system: # /sbin/cluconfig --init=/dev/raw/raw1 See the manual to complete the cluster installation 3.配制第二个节点 只需执行 cluconfig --init=/dev/raw/raw1 4.启动Cluster服务 分别在两个节点上执行 service cluster start 你将看到下面的几个Daemon • cluquorumd — Quorum daemon
[1] [2] 下一页
(出处:http://www.sheup.com)
上一页 [1] [2]