紅帽企業集羣和存儲管理之
rhcs高性能HA羣集構建的簡單應用
案例應用拓撲圖：
案例應用實現詳細步驟如下：
[root@target ~]# hostname
target.junjie.com
[root@target ~]# cat /etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=target.junjie.com
在/etc/hosts中添加以下幾行：
[root@target ~]# cat /etc/hosts
192.168.101.210 target.junjie.com target
192.168.101.211 node1.junjie.com node1
192.168.101.212 node2.junjie.com node2
[root@target ~]#setup
[root@target ~]# service network restart
Shutting down interface eth0: [ OK ]
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: [ OK ]
[root@target ~]# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:0C:29:1B:F1:BA
inet addr:192.168.101.210 Bcast:192.168.101.255 Mask:255.255.255.0
[root@target ~]# cat /etc/yum.repos.d/server.repo
[rhel-server]
name=Red Hat Enterprise Linux server
baseurl=file:///mnt/cdrom/Server/
enabled=1
gpgcheck=1
gpgkey=file:///mnt/cdrom/RPM-GPG-KEY-redhat-release
[rhel-vt]
name=Red Hat Enterprise Linux vt
baseurl=file:///mnt/cdrom/VT/
enabled=1
gpgcheck=1
gpgkey=file:///mnt/cdrom/RPM-GPG-KEY-redhat-release
[rhel-cluster]
name=Red Hat Enterprise Linux cluster
baseurl=file:///mnt/cdrom/Cluster/
enabled=1
gpgcheck=1
gpgkey=file:///mnt/cdrom/RPM-GPG-KEY-redhat-release
[rhel-clusterstorage]
name=Red Hat Enterprise Linux clusterstorage
baseurl=file:///mnt/cdrom/ClusterStorage/
enabled=1
gpgcheck=1
gpgkey=file:///mnt/cdrom/RPM-GPG-KEY-redhat-release
[root@target ~]# yum list all
[root@node1 ~]# hostname
node1.junjie.com
[root@node1 ~]# cat /etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=node1.junjie.com
[root@node1 ~]#setup
[root@node1 ~]# service network restart
Shutting down interface eth0: [ OK ]
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: [ OK ]
[root@node1 ~]# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:0C:29:66:E1:DA
inet addr:192.168.101.211 Bcast:192.168.101.255 Mask:255.255.255.0
[root@node2 ~]# hostname
node2.junjie.com
[root@node2 ~]# cat /etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=node2.junjie.com
[root@node2 ~]# setup
[root@node2 ~]# service network restart
Shutting down interface eth0: [ OK ]
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: [ OK ]
[root@node2 ~]# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:0C:29:79:F8:F7
inet addr:192.168.101.212 Bcast:192.168.101.255 Mask:255.255.255.0
[root@target ~]# scp /etc/hosts node1.junjie.com:/etc/
[root@target ~]# scp /etc/hosts node2.junjie.com:/etc/
[root@target ~]# scp /etc/yum.repos.d/server.repo node2.junjie.com:/etc/yum.repos.d/
[root@target ~]# scp /etc/yum.repos.d/server.repo node2.junjie.com:/etc/yum.repos.d/
[root@target ~]# hwclock -s
[root@target ~]# date
Thu Apr 5 12:49:35 CST 2012
[root@target ~]#
[root@node1 ~]# hwclock -s
[root@node1 ~]# date
Thu Apr 5 12:49:43 CST 2012
[root@node1 ~]# mkdir /mnt/cdrom/
[root@node1 ~]# mount /dev/cdrom /mnt/cdrom/
[root@node1 ~]#yum list all
[root@node2 ~]# hwclock -s
[root@node2 ~]# date
Thu Apr 5 12:49:54 CST 2012
[root@node2 ~]# mkdir /mnt/cdrom/
[root@node2 ~]# mount /dev/cdrom /mnt/cdrom/
[root@node2 ~]#yum list all
[root@target ~]# yum install scsi-target-utils -y
[root@target ~]# chkconfig tgtd on
[root@target ~]# service tgtd start
Starting SCSI target daemon: [ OK ]
[root@target ~]# fdisk /dev/sda
p/n/p//+1000M/p/w
[root@target ~]# partprobe /dev/sda
[root@target ~]# tgtadm --lld iscsi --op new --mode target --tid 1 --targetname iqn.2012-05-22.com.junjie.target
[root@target ~]# tgtadm --lld iscsi --op new --mode logicalunit --tid 1 --lun 1 --backing-store /dev/sda4
[root@target ~]# tgtadm --lld iscsi --op bind --mode target --tid 1 --initiator-address 192.168.101.0/24
[root@target ~]# tgtadm --lld iscsi --op show --mode target
Target 1: iqn.2012-05-22.com.junjie.target
System information:
Driver: iscsi
State: ready
I_T nexus information:
LUN information:
LUN: 0
Type: controller
SCSI ID: deadbeaf1:0
SCSI SN: beaf10
Size: 0 MB
Online: Yes
Removable media: No
Backing store: No backing store
LUN: 1
Type: disk
SCSI ID: deadbeaf1:1
SCSI SN: beaf11
Size: 1012 MB
Online: Yes
Removable media: No
Backing store: /dev/sda4
Account information:
ACL information:
192.168.101.0/24
[root@target ~]# vim /etc/tgt/targets.conf
6 <target iqn.2012-05-22.com.junjie.target>
8 backing-store /dev/sda4
16 initiator-address 192.168.101.0/24
17 </target>
[root@node1 ~]# yum list all |grep iscsi-initiator
[root@node1 ~]# yum install -y iscsi-initiator-utils
[root@node1 ~]# vim /etc/iscsi/initiatorname.iscsi
InitiatorName=iqn.2012-05-22.com.junjie.node1
[root@node1 ~]# chkconfig iscsi on
[root@node1 ~]# service iscsi start
iscsid is stopped
Turning off network shutdown. Starting iSCSI daemon: [ OK ]
[ OK ]
Setting up iSCSI targets: iscsiadm: No records found!
[ OK ]
[root@node1 ~]#
[root@node1 ~]# iscsiadm --mode discovery --type sendtargets --portal 192.168.101.210
192.168.101.210:3260,1 iqn.2012-05-22.com.junjie.target
[root@node1 ~]# iscsiadm --mode node --targetname iqn.2012-05-22.com.junjie.target --portal 192.168.101.210:3260 --login
Logging in to [iface: default, target: iqn.2012-05-22.com.junjie.target, portal: 192.168.101.210,3260]
Login to [iface: default, target: iqn.2012-05-22.com.junjie.target, portal: 192.168.101.210,3260]: successful
[root@node1 ~]# fdisk -l
…………..
Disk /dev/sdb: 1011 MB, 1011709440 bytes
32 heads, 61 sectors/track, 1012 cylinders
Units = cylinders of 1952 * 512 = 999424 bytes
Disk /dev/sdb doesn't contain a valid partition table
[root@node1 ~]#fdisk /dev/sdb
p/n/p/1///w
[root@node1 ~]# partprobe /dev/sdb
[root@node1 ~]# cat /proc/partitions
8 0 12582912 sda
8 1 104391 sda1
8 2 8193150 sda2
8 3 1534207 sda3
8 16 987997 sdb
8 17 987681 sdb1
[root@node1 ~]# mkfs -t ext3 /dev/sdb1
[root@node1 ~]# mkdir /mnt/1
[root@node1 ~]# mount /dev/sdb1 /mnt/1
[root@node1 ~]# cd /mnt/1/
[root@node1 1]# echo "web-server--xjzhujunjie--2012/05/06" >index.html
[root@node1 1]# ll
[root@node1 1]# cd
[root@node1 ~]# umount /mnt/1/
[root@node1 ~]# mount
在node2上進行配置：
[root@node2 ~]# yum list all |grep iscsi-initiator
[root@node2 ~]# yum install -y iscsi-initiator-utils
[root@node2 ~]# vim /etc/iscsi/initiatorname.iscsi
InitiatorName=iqn.2012-05-22.com.junjie.node2
[root@node2 ~]# chkconfig iscsi on
[root@node2 ~]# service iscsi start
iscsid is stopped
Turning off network shutdown. Starting iSCSI daemon: [ OK ]
[ OK ]
Setting up iSCSI targets: iscsiadm: No records found!
[ OK ]
[root@node2 ~]# iscsiadm --mode discovery --type sendtargets --portal 192.168.101.210
192.168.101.210:3260,1 iqn.2012-05-22.com.junjie.target
[root@node2 ~]# iscsiadm --mode node --targetname iqn.2012-05-22.com.junjie.target --portal 192.168.101.210:3260 --login
Logging in to [iface: default, target: iqn.2012-05-22.com.junjie.target, portal: 192.168.101.210,3260]
Login to [iface: default, target: iqn.2012-05-22.com.junjie.target, portal: 192.168.101.210,3260]: successful
[root@node2 ~]# fdisk -l
Disk /dev/sdb: 1011 MB, 1011709440 bytes
32 heads, 61 sectors/track, 1012 cylinders
Units = cylinders of 1952 * 512 = 999424 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 1012 987681+ 83 Linux
[root@node2 ~]#
[root@target ~]# tgtadm --lld iscsi --op show --mode target
Target 1: iqn.2012-05-22.com.junjie.target
System information:
Driver: iscsi
State: ready
I_T nexus information:
I_T nexus: 1
Initiator: iqn.2012-05-22.com.junjie.node1
Connection: 0
IP Address: 192.168.101.211
I_T nexus: 2
Initiator: iqn.2012-05-22.com.junjie.node2
Connection: 0
IP Address: 192.168.101.212
ricci&luci
[root@node1 ~]# yum install -y ricci httpd
[root@node1 ~]# chkconfig ricci on
[root@node1 ~]# service ricci start
Starting oddjobd: [ OK ]
generating SSL certificates... done
Starting ricci: [ OK ]
[root@node1 ~]#
[root@node2 ~]# yum install -y ricci httpd
[root@node2 ~]# chkconfig ricci on
[root@node2 ~]# service ricci start
Starting oddjobd: [ OK ]
generating SSL certificates... done
Starting ricci: [ OK ]
[root@node2 ~]#
[root@target ~]# yum install -y luci
[root@target ~]# luci_admin init
Initializing the luci server
Creating the 'admin' user
Enter password:
Confirm password:
………..
You must restart the luci server for changes to take effect.
Run "service luci restart" to do so
[root@target ~]#
[root@target ~]# chkconfig luci on
[root@target ~]# chkconfig --list luci
luci 0:off 1:off 2:on 3:on 4:on 5:on 6:off
[root@target ~]# service luci start
Starting luci: Generating https SSL certificates... done
[ OK ]
Point your web browser to https://target.junjie.com:8084 to access luci
[root@target ~]#
client測試管理：
紅帽企業集羣和存儲管理之rhcs高性能HA羣集構建實現過程：（具體說明略，圖片說明略）
[root@node2 ~]# cd /etc/cluster/
[root@node2 cluster]# ll
total 8
-rw-r----- 1 root root 374 Apr 5 14:20 cluster.conf
-rw------- 1 root root 4096 Apr 5 14:48 fence_xvm.key
開始使用虛擬IP訪問測試
查看羣集信息
故障模擬
繼續輪詢到node1節點上
首次輪詢至node2.junjie.com成功！！
再次輪詢至node1.junjie.com失敗！！
本人不知後面如何處理，希望高手指點！！