配置說明:
1. 通過Openfiler實現iscsi共享存儲
2. 通過VMware ESXi5 虛擬fence實現fence功能。
3. 結合Redhat 5.8 vmware-fence-soap實現RHCS fence設備功能。
4. 本文原創建搭建RHCS實驗環境測試RHCS Oracle HA功能。
本文鏈接：http://koumm.blog.51cto.com/703525/1161791
一、准備基礎環境
1. 網絡環境准備
node1,node2節點
# cat /etc/hosts
192.168.14.100 node1
192.168.14.110 node2
2. 配置YUM安裝源
(1) 掛載光盤ISO
# mount /dev/cdrom /mnt
(2) 配置YUM客戶端
說明: 通過本地光盤做為yum安裝源。
# vi /etc/yum.repos.d/rhel-debuginfo-bak.repo
[rhel-debuginfo]
name=Red Hat Enterprise Linux $releasever - $basearch - Debug
baseurl=ftp://ftp.redhat.com/pub/redhat/linux/enterprise/$releasever/en/os/$basearch/Debuginfo/
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
[Server]
name=Server
baseurl=file:///mnt/Server
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
[VT]
name=VT
baseurl=file:///mnt/VT
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
[Cluster]
name=Cluster
baseurl=file:///mnt/Cluster
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
[ClusterStorage]
name=ClusterStorage
baseurl=file:///mnt/ClusterStorage
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
(3) openfiler iscsi存儲配置
具體配置略，共劃分兩塊lun，一塊10G配置GFS,一塊1G配置表決盤。
(4) 掛載存儲
rpm -ivh iscsi-initiator-utils-6.2.0.872-13.el5.x86_64.rpm
chkconfig iscsi --level 35 on
chkconfig iscsid --level 35 on
service iscsi start
# iscsiadm -m discovery -t st -p 192.168.14.162
# iscsiadm -m node -T iqn.2006-01.com.openfiler:tsn.b2bd5bb312a7 -p 192.168.14.162 -l
二、RHCS軟件包的安裝
192.168.10.100 node1 (管理機)
192.168.10.110 node2
1. 在node1上安裝luci及RHCS軟件包
安裝 ricci、rgmanager、gfs、cman
(1) node1（管理節點）安裝RHCS軟件包，luci是管理端軟件包，只在管理端安裝。
yum install luci ricci cman cman-devel gfs2-utils rgmanager system-config-cluster -y
(2) 配置RHCS服務開機啟動
chkconfig luci on
chkconfig ricci on
chkconfig rgmanager on
chkconfig cman on
service ricci start
service cman start
2. 在node2 上安裝RHCS軟件包
(1) node2安裝RHCS軟件包
yum install ricci cman cman-devel gfs2-utils rgmanager system-config-cluster -y
(2) 配置RHCS服務開機啟動
chkconfig ricci on
chkconfig rgmanager on
chkconfig cman on
service ricci start
service cman start
這是因為還沒有加入集群沒有產生配置文件/etc/cluster/cluster.conf
3. 直接安裝集群組件或安裝操作系統的過程中選擇集群。
yum groupinstall Clustering
三、RHCS集群管理端配置
1. 在node1管理節點上安裝啟動luci服務
說明：在管理節點上進行操作。
(1) luci初始化
# luci_admin init Initializing the luci server
Creating the 'admin' user
Enter password:
Confirm password:
Please wait...
The admin password has been successfully set.
Generating SSL certificates...
The luci server has been successfully initialized
(2) 啟動luci服務
# service luci start
(3) 配置管理地址
https://192.168.14.100:8084
admin/111111
四、RHCS集群配置
1. 添加集群
登錄進管理界面，點擊cluster->Create a New Cluster->填入如下內容：
Cluster Name: rhcs
node1 192.168.10.100
node2 192.168.10.110
選中如下選項，然後提交，集群會經過install,reboot,config,join兩步過程才能成功。
Use locally installed packages.
Enable shared storage support
check if node passwords are identical
說明:
(1) 這步會生成集群配置文件/etc/cluster/cluster.conf
(2) 也可以直接創建該配置文件。
2. 兩節點分別啟動集群服務
分別ssh到 node1,node2上，啟動cman服務。
# service cman start
Starting cluster:
Loading modules... done
Mounting configfs... done
Starting ccsd... done
Starting cman... done
Starting daemons... done
Starting fencing... done
3. 添加fence設備
說明:
RHCS要實現完整的集群功能，必須要實現fence功能。由於非物理服務器配置等條件限制，特使用VMware ESXi5.X的虛擬fence來實現fence設備的功能。
正是由於有了fence設備可以使用，才得以完整測試RHCS HA功能。
(1)登錄進管理界面，點擊cluster->Cluster List->
(2)分別選擇node1,node2進行如下操作：
(3)選擇"Add a fence device to this level",選擇vmware fence soap。
(4)添加fence設備
name : fence設備名，可以用虛擬機計算機名，也可以別取
hostname : vCenter或ESXi主機的地址
Login : vCenter或ESXi主機的用戶名
Password : vCenter或ESXi主機的密碼
Use SSL : 勾取
Power Wait: 可選
Virtual machine name: RHCS_node1
Virtual machine UUID: /vmfs/volumes/datastore3/RHCS_node1/RHCS_node1.vmx
#虛擬機的名稱與UUID需要按實際填寫，ESXi需要開啟ssh登錄進系統實際查看。
#手動測試fence功能示例:
# /sbin/fence_vmware_soap -a 192.168.14.70 -z -l root -p 1111111 -n RHCS_node1 -o status
Status: ON
# /sbin/fence_vmware_soap -a 192.168.14.70 -z -l root -p 1111111 -n RHCS_node1 -o list
RHCS_node2,564d5908-e8f6-99f6-18a8-a523c04111b2
RHCS_node1,564d3c96-690c-1f4b-cfbb-a880ca4bca6a
選項：
-o : list,status,reboot等參數
4. 添加Failover Domains 故障轉移域
Failover Domains -> Add
名字：rhcs_failover
勾選Prioritized，
No Failback具體情況自己設定；
勾選兩台節點，
設定其優先級。
點擊提交。
5. 配置GFS服務
(1) GFS服務配置
分別在node1,node2啟動CLVM的集成cluster鎖服務
# lvmconf --enable-cluster # chkconfig clvmd on
# service clvmd start
Activating VG(s): No volume groups found [ OK ]
(2) 在任意一節點對磁盤進行分區,劃分出sdb1。然後格式化成gfs2.
node1節點上：
# pvcreate /dev/sdb1
# vgcreate vg /dev/sdb1
# lvcreate -l +100%FREE -n var01 vg
Error locking on node node2: Volume group for uuid not found: QkM2JYKg5EfFuFL6LzJsg7oAfK4zVrkytMVzdziWDmVhBGggTsbr47W1HDEu8FdB
Failed to activate new LV.
出現以上提示，需要在node2上創建物理卷
node2節點上：
# pvcreate /dev/sdb1
Can't initialize physical volume "/dev/sdb1" of volume group "vg1" without -ff
不用管提示什麼。
回到node1節點上：
# lvcreate -l +100%FREE -n var01 vg
Logical volume "var01" created （能夠創建lv了。）
# /etc/init.d/clvmd start
Activating VG(s): 1 logical volume(s) in volume group "vg1" now active
[ OK ]
(3) 格式化GFS文件系統
node1節點上：
# mkfs.gfs2 -p lock_dlm -t rhcs:gfs2 -j 3 /dev/vg/var01 This will destroy any data on /dev/vg/var01.
Are you sure you want to proceed? [y/n] y
Device: /dev/vg/var01
Blocksize: 4096
Device Size 10.00 GB (2620416 blocks)
Filesystem Size: 10.00 GB (2620416 blocks)
Journals: 3
Resource Groups: 40
Locking Protocol: "lock_dlm"
Lock Table: "rhcs:gfs2"
UUID: A692D99D-22C4-10E9-3C0C-006CBF7574CD
說明:
rhcs:gfs2這個rhcs就是集群的名字，gfs2是定義的名字，相當於標簽吧。
-j是指定掛載這個文件系統的主機個數，不指定默認為1即為管理節點的。
這裡實驗有兩個節點，加上管理主機為3
6. 掛載GFS文件系統
node1,node2 上創建GFS掛載點
# mkdir /oradata
(1)node1,node2手動掛載測試，掛載成功後，創建文件測試集群文件系統情況。
# mount.gfs2 /dev/vg/var01 /oradata
(2)配置開機自動掛載
# vi /etc/fstab
/dev/vg/var01 /oradata gfs2 defaults 0 0
(3)通過管理平台配置掛載（略）
查看掛載情況：
[root@node1 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
14G 2.8G 10G 22% /
/dev/sda1 99M 27M 68M 29% /boot
tmpfs 506M 0 506M 0% /dev/shm
/dev/hdc 3.1G 3.1G 0 100% /mnt
/dev/mapper/vg-var01 10G 388M 9.7G 4% /oradata
7. 配置表決磁盤
說明:
#表決磁盤是共享磁盤，10M大小就可以了，無需要太大，本例采用/dev/sdc1來進行創建。
#兩節點好像不需要配置表決磁盤，兩節點以上必須配置。
[root@node1 ~]# fdisk -l
Disk /dev/sdc: 1073 MB, 1073741824 bytes
34 heads, 61 sectors/track, 1011 cylinders
Units = cylinders of 2074 * 512 = 1061888 bytes
Device Boot Start End Blocks Id System
/dev/sdc1 1 1011 1048376+ 83 Linux
(1) 創建表決磁盤
[root@node1 ~]# mkqdisk -c /dev/sdc1 -l myqdisk
mkqdisk v0.6.0
Writing new quorum disk label 'myqdisk' to /dev/sdc1.
WARNING: About to destroy all data on /dev/sdc1; proceed [N/y] ? y
Initializing status block for node 1...
Initializing status block for node 2...
Initializing status block for node 3...
Initializing status block for node 4...
Initializing status block for node 5...
Initializing status block for node 6...
Initializing status block for node 7...
Initializing status block for node 8...
Initializing status block for node 9...
Initializing status block for node 10...
Initializing status block for node 11...
Initializing status block for node 12...
Initializing status block for node 13...
Initializing status block for node 14...
Initializing status block for node 15...
Initializing status block for node 16...
(2) 查看表決磁盤信息
[root@node1 ~]# mkqdisk -L
mkqdisk v0.6.0
/dev/disk/by-id/scsi-14f504e46494c450068656b3274732d664452562d48534f63-part1:
/dev/disk/by-path/ip-192.168.14.162:3260-iscsi-iqn.2006-01.com.openfiler:tsn.b2bd5bb312a7-lun-1-part1:
/dev/sdc1:
Magic: eb7a62c2
Label: myqdisk
Created: Sun Mar 24 00:18:12 2013
Host: node1
Kernel Sector Size: 512
Recorded Sector Size: 512
(3) 配置表決磁盤qdisk
# 進入管理界面cluster->cluster list->點擊Cluster Name: rhcs;
# 選擇"Quorum Partition",選擇"use a Quorum Partition"
interval : 2
votes : 2
TKO : 10
Minimum Score: 1
Device : /dev/sdc1
Path to program : ping -c3 -t2 192.168.14.2
Interval : 3
Score : 2
# 點擊apply
(4) 啟動qdisk服務
chkconfig qdiskd on
service qdiskd start
clustat -l
# clustat -l Cluster Status for rhcs @ Sun Mar 24 00:26:26 2013
Member Status: Quorate
Member Name ID Status
------ ---- ---- ------
node1 1 Online, Local
node2 2 Online
/dev/sdc1 0 Offline, Quorum Disk
8. 添加Resources資源
(1) 添加集群IP資源
點擊cluster-> rhcs-> Resources->Add a Resources
選擇IP，輸入：192.168.14.130
選中monitorlink
點擊submit
(2) 添加Oracle啟動與關閉腳本資源
#啟動oracle數據庫的腳本，放在/etc/init.d/dbora下面，名稱為oracle，不用配置成服務形成，該腳本會由RHCS服務來管理。
#分別在node1,node2上創建如下腳本。
# vi /etc/init.d/oracle
#!/bin/bash
export ORACLE_HOME=/u01/app/oracle/product/10.2.0/db_1
export ORACLE_SID=orcl
start() {
su - oracle<<EOF
echo "Starting Listener ..."
$ORACLE_HOME/bin/lsnrctl start
echo "Starting Oracle10g Server.. "
sqlplus / as sysdba
startup
exit;
EOF
}
stop() {
su - oracle<<EOF
echo "Shutting down Listener..."
$ORACLE_HOME/bin/lsnrctl stop
echo "Shutting down Oracle10g Server..."
sqlplus / as sysdba
shutdown immediate;
exit
EOF
}
case "$1" in
start)
start
;;
stop)
stop
;;
*)
echo "Usage: $0 {start|stop}"
;;
esac
chmod +x /etc/init.d/dbora
五、安裝配置Oracle 10G數據庫
說明: 具體安裝過程略過，
1. node1節點上
(1) 准備oracle安裝環境
(2) 安裝oracle數據庫軟件及補丁
(3) netca
(4) dbca 創建數據庫，數據庫文件，控制文件，redolog文件，閃回區，規檔等都創建在/oradata集群文件系統上。
2. node2節點上
(1) 准備oracle安裝環境
(2) 安裝oracle數據庫軟件及補丁
(3) netca
3. 從node1拷貝相關參數文件到node2上
(1) node1打包參數文件
$ cd /u01/app/oracle/product/10.2.0.1/db_1
$ tar czvf dbs.tar.gz dbs
dbs/
dbs/init.ora
dbs/lkORCL
dbs/hc_orcl.dat
dbs/initdw.ora
dbs/spfileorcl.ora
dbs/orapworcl
$ scp dbs.tar.gz node2:/u01/app/oracle/product/10.2.0/db_1/
(2) node2上
# su - oracle
$ mkdir -p /u01/app/oracle/admin/orcl/{adump,bdump,cdump,dpdump,udump}
$ cd /u01/app/oracle/product/10.2.0/db_1/
$ tar zxvf dbs.tar.gz
六、配置Oracle10G數據庫服務
1. 添加數據庫服務
點擊cluster->rhcs->Services->Add a Services
ServiceName:oracle10g
選中 Automatically start this service
選中 Failover domain 選擇剛創建的rhcs_failover
選中 Reovery policy (恢復策略) restart
點擊"add a resource to this service" 添加之前創建的"IP資源","Oracle腳本資源"。
點擊"go",即可創建oracle10g服務
2. 查看服務狀態
(1) 查看集群狀態
[root@node1 db_1]# clustat -l
Cluster Status for rhcs @ Sun Mar 24 12:37:02 2013
Member Status: Quorate
Member Name ID Status
------ ---- ---- ------
node1 1 Online, Local, rgmanager
node2 2 Online, rgmanager
/dev/sdc1 0 Online, Quorum Disk
Service Information
------- -----------
Service Name : service:oracle10g
Current State : started (112)
Flags : none (0)
Owner : node1
Last Owner : none
Last Transition : Sun Mar 24 12:35:53 2013
(2) 查看集群IP
[root@node1 db_1]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: sit0: <NOARP> mtu 1480 qdisc noop
link/sit 0.0.0.0 brd 0.0.0.0
3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:0c:29:25:ee:43 brd ff:ff:ff:ff:ff:ff
inet 192.168.14.100/24 brd 192.168.14.255 scope global eth0
inet 192.168.14.130/24 scope global secondary eth0
inet6 fe80::20c:29ff:fe25:ee43/64 scope link
valid_lft forever preferred_lft forever
4: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:0c:29:25:ee:4d brd ff:ff:ff:ff:ff:ff
inet 10.10.10.10/24 brd 10.10.10.255 scope global eth1
inet6 fe80::20c:29ff:fe25:ee4d/64 scope link
valid_lft forever preferred_lft forever
3. 手工切換服務節點
# clusvcadm -r "oracle10g" -m node2
Trying to relocate service:oracle10g to node2...Success
service:oracle10g is now running on node2
# cat /var/log/messages
Mar 24 21:12:44 node2 clurgmgrd[3601]: <notice> Starting stopped service service:oracle10g
Mar 24 21:12:46 node2 avahi-daemon[3513]: Registering new address record for 192.168.14.130 on eth0.
Mar 24 21:13:43 node2 clurgmgrd[3601]: <notice> Service service:oracle10g started
其它：具體RHCS HA功能還需待詳細測試。
本文出自 “koumm的linux技術博客” 博客，請務必保留此出處http://koumm.blog.51cto.com/703525/1161791