9月 09

MOSIX-2.24.2.2/linux-2.6.26集群(三)–应用测试

cluster, linux, vmware No Comments »

#先在rehl5和slave上各开启一个终端,运行mon命令,检查
[root@rhel5 ~]# mon

#2个节点上应该都是闲置的吧

#为了能出些效果,做点费cpu的脚本,还必须是多线程的,
#mosix能够迁移的最小单位是进程,而不是指令或者函数,
#所以单进程负载再高也没意义

[root@rhel5 ~]# cat a.sh << EOF
awk 'BEGIN {for(i=0;i<100000;i++)for(j=0;j<100000;j++);}'  &
awk 'BEGIN {for(i=0;i<100000;i++)for(j=0;j<100000;j++);}'  &
awk 'BEGIN {for(i=0;i<100000;i++)for(j=0;j<100000;j++);}'  &
awk 'BEGIN {for(i=0;i<100000;i++)for(j=0;j<100000;j++);}'  &
awk 'BEGIN {for(i=0;i<100000;i++)for(j=0;j<100000;j++);}'  &
awk 'BEGIN {for(i=0;i<100000;i++)for(j=0;j<100000;j++);}'  &
EOF

[root@rhel5 ~]# chmod +x a.sh

#在rhel5上运行a.sh,也就是产生6个进程了

[root@rhel5 ~]# mosrun -e ./a.sh

#开始观察2个节点上的mon画面,刚开始rhel负载很高,然后slave的负载也起来了,能够看到

#能够看到在rhel5上,awk的6个进程还在,但是只有3个在运行,还有3个的状态是T(stop),哈哈,应该是迁移了

[root@rhel5 ~]# ps -aux | grep awk
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ
root     25648  0.6  0.0      0     0 pts/0    T    16:16   0:00 [awk]
root     25650  0.4  0.0      0     0 pts/0    T    16:16   0:00 [awk]
root     25652 32.0  0.7   4168  3812 pts/0    R    16:16   0:37 awk BEGIN {for(i=0;i<100000;i++)for(j=0;j<100000;j++);}
root     25654 32.0  0.7   4168  3816 pts/0    R    16:16   0:37 awk BEGIN {for(i=0;i<100000;i++)for(j=0;j<100000;j++);}
root     25656 32.0  0.7   4168  3816 pts/0    R    16:16   0:37 awk BEGIN {for(i=0;i<100000;i++)for(j=0;j<100000;j++);}
root     25658  1.4  0.0      0     0 pts/0    T    16:16   0:01 [awk]
root     25665  0.0  0.1   3860   624 pts/0    R+   16:18   0:00 grep awk

#到slave上top看看吧,明显看到有3个叫remoted的进程占用了cpu,这个就是迁移过来的状态吧

top - 16:19:19 up  3:10,  3 users,  load average: 2.78, 1.18, 0.44
Tasks:  99 total,   5 running,  94 sleeping,   0 stopped,   0 zombie
Cpu(s): 99.3%us,  0.3%sy,  0.0%ni,  0.0%id,  0.0%wa,  0.0%hi,  0.3%si
Mem:    515376k total,   423576k used,    91800k free,   107980k buff
Swap:  1048568k total,        0k used,  1048568k free,   234028k cach

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
16929 root      20   0  4168 3936    0 R 33.2  0.8   0:48.13 remoted
16925 root      20   0  4168 3932    0 R 32.9  0.8   0:50.57 remoted
16927 root      20   0  4168 3932    0 R 32.9  0.8   0:50.13 remoted
    1 root      20   0  2036  664  572 S  0.0  0.1   0:01.36 init   
    2 root      15  -5     0    0    0 S  0.0  0.0   0:00.00 kthreadd
    3 root      RT  -5     0    0    0 S  0.0  0.0   0:00.00 migratio
    4 root      15  -5     0    0    0 S  0.0  0.0   0:02.00 ksoftirq

##############THE END############

9月 09

MOSIX-2.24.2.2/linux-2.6.26集群(二)–配置

cluster, linux 1 Comment »

将rhel5和slave开启,开机的时候,在grub界面按回车,然后选择2.6.26内核启动

slave启动以后,把ip地址,机器名改好(应为是由rhel5克隆得到的嘛)

[reel5]

#配置mosix

[root@rhel5 ~]# mosconf
MOSIX CONFIGURATION
===================

If this is your cluster's file-server and you want to configure MOSIX
for a set of nodes with a common root, please type their common root
directory. Otherwise, if you want to configure the node that you are
running on, just press <ENTER> :-

What would you like to configure?
=================================
1. Which nodes are in this cluster      (ESSENTIAL)
2. Authentication                       (ESSENTIAL)
3. Logical node numbering               (recommended)
4. Queueing policies                    (recommended)
5. Freezing policies
6. Miscellaneous policies
7. Become part of a multi-cluster organizational Grid

Configure what :- 1

There are no nodes in your cluster yet:
=======================================

To add a new set of nodes to your cluster, type 'n'.
To turn on advanced options, type '+'.
For help, type 'h'.
To save and exit, type 'q'.  (to abandon all changes and exit, type 'Q')

Option :- n                                     <==添加节点

Adding new node(s) to the cluster:

First host-name or IP address :- 192.168.1.5    <==节点ip
Number of nodes :- 1                            <==节点数

Nodes in your cluster:
======================
1. 192.168.1.5

To add a new set of nodes to your cluster, type 'n'.
To modify an entry, type its number.
To delete an entry, type 'd' followed by that entry-number (eg. d1).
To turn on advanced options, type '+'.
For help, type 'h'.
To save and exit, type 'q'.  (to abandon all changes and exit, type 'Q')

Option :- n                                     <==添加节点

Adding new node(s) to the cluster:

First host-name or IP address :- 192.168.1.6    <==节点ip
Number of nodes :- 1                            <==节点数

Nodes in your cluster:
======================
1. 192.168.1.5
2. 192.168.1.6

To add a new set of nodes to your cluster, type 'n'.
To modify an entry, type its number.
To delete an entry, type 'd' followed by that entry-number (eg. d2).
To turn on advanced options, type '+'.
For help, type 'h'.
To save and exit, type 'q'.  (to abandon all changes and exit, type 'Q')

Option :- q                                     <==保存退出

Cluster configuration was saved.


OK to also update the logical node numbers [Y/n]? y

Suggesting to assign '192.168.1.5'
as the central queue manager for the cluster
(but be cautious if you mix 32-bit and 64-bit nodes in the same cluster)
OK to update it now [Y/n]?

What would you like to configure next?
======================================
1. Which nodes are in this cluster
2. Authentication                       (ESSENTIAL)
3. Logical node numbering
4. Queueing policies
5. Freezing policies
6. Miscellaneous policies
7. Become part of a multi-cluster organizational Grid
q. Exit

Configure what :- 2                             <==设置密码

MOSIX Authentication:
=====================

To protect your MOSIX cluster from abuse, preventing unauthorized
persons from gaining control over your computers, you need to set
up a secret cluster-protection key. This key can include any
characters, but must be identical throughout your cluster.

Your secret cluster-protection key: xxxx            <==输入密码
Your key is 5 characters long.
(in the future, please consider a longer one)

To allow your users to send batch-jobs to other nodes in the cluster,
you must set up a secret batch-client key. This key can include any
characters, but must match the 'batch-server' key on the node(s) that
can receive batch-jobs from this node.

Your secret batch-client key: xxxx                  <==输入密码
Your key is 5 characters long.
(in the future, please consider a longer one)

For this node to accept batch jobs,
you must set up a secret batch-server key. This key can include any
characters, but must match the 'batch-client' key on the sending nodes.

To make your batch-server key the same as your batch-client key, type '+'.
Your secret batch-server key: xxxx                  <==输入密码
Your key is 5 characters long.
(in the future, please consider a longer one)

#保持退出
[root@rhel5 ~]# service mosix restart
[root@slave ~]# mosconf
....

#操作同rhel5一样

#重启服务

[root@slave ~]# service mosix restart

#看看状态吧

[root@slave ~]# service mosix status
This MOSIX node is: 192.168.1.6 (no features)

Nodes in cluster:
=================
192.168.1.5: proximate
192.168.1.6: proximate

Status: Running Normally (32-bits)
Load:   0.01 (equivalent to about 0.0066 CPU processes)
Speed:  6650 units
CPUS:   1
Frozen: 0
Util:   100%
Avail:  YES
Procs:  Running 0 MOSIX processes
Accept: Yes, will welcome processes from here
Memory: Available 461MB/503MB
Swap:   Available 0.9GB/0.9GB
Daemons:
        Master Daemon: Up
        MOSIX Daemon : Up
        Queue Manager: Up
        Remote Daemon: Up
        Postal Daemon: Up
Guest processes from other clusters in the grid: 0/8

#我比较喜欢看看端口是不是起来了
#TCP/IP ports 249-253 and UDP/IP ports 249-250 must be available for MOSIX

[root@slave ~]# netstat -antu | grep -E "24|25"
tcp        0      0 0.0.0.0:2401                0.0.0.0:*                   LISTEN     
tcp        0      0 0.0.0.0:249                 0.0.0.0:*                   LISTEN     
tcp        0      0 127.0.0.1:25                0.0.0.0:*                   LISTEN     
tcp        0      0 0.0.0.0:250                 0.0.0.0:*                   LISTEN     
tcp        0      0 0.0.0.0:251                 0.0.0.0:*                   LISTEN     
tcp        0      0 0.0.0.0:252                 0.0.0.0:*                   LISTEN     
udp        0      0 0.0.0.0:249                 0.0.0.0:*                               
udp        0      0 0.0.0.0:250                 0.0.0.0:*

#好了,装完了

9月 09

MOSIX集群(一)–安装

cluster, linux, vmware 2 Comments »

目的: 集群节点内进程能根据负载情况自动迁移

用vmware安装一台rhel5(192.168.1.5)

# 下载MOSIX和kernel代码,准备编译
# 解压到指定目录

[root@rhel5 ~]# tar xjvf MOSIX-2.24.2.2.tbz  -C /usr/src/
[root@rhel5 ~]# tar xzvf linux-2.6.26.tar.gz  -C /usr/src/

#进入源代码所在目录

[root@rhel5 ~]# cd /usr/src/

#由于other/patch-2.6.26的目标路径是linux-2.6.26.1,做个连接吧(可能是mosix没有为2.6.26单独写patch…,不过还是支持的)

[root@rhel5 src]# ln -s linux-2.6.26/ ./linux-2.6.26.1

#给kernel打上mosix补丁

[root@rhel5 src]# patch -p0 < /usr/src/mosix-2.24.2.2/other/patch-2.6.26

#进入源代码目录,开始编译

[root@rhel5 src]# cd linux-2.6.26

#生成配置文件

[root@rhel5 linux-2.6.26]# make menuconfig

#生成依赖关系

[root@rhel5 linux-2.6.26]# make dep

#编译内核

[root@rhel5 linux-2.6.26]# make bzImage

#编译内核模块

[root@rhel5 linux-2.6.26]# make modules

#安装内核模块

[root@rhel5 linux-2.6.26]# make modules_install

#安装内核

[root@rhel5 linux-2.6.26]# make install

#进入mosix目录

[root@rhel5 mosix-2.24.2.2]# cd ../mosix-2.24.2.2

#安装mosix,一路回车,只用安装,记得把你常用级别的mosix服务打开就可以了.配置以后再说

[root@rhel5 mosix-2.24.2.2]# ./mosix.install

关机以后,用rhel5(192.168.1.5)克隆出slave(192.168.1.6)

安装完成

9月 05

iscsi+clvm+gfs2+xen+Cluster(四)–clvm+gfs2的配置

cluster, linux, vmware No Comments »

刚才的iscsi将服务器上的磁盘共享出来,在cluster中,往往会使用添加共享磁盘的方式扩大共享空间,我们可以使用clvm技术,将多块共享磁盘合并成一个磁盘(卷组volume goup).也便于以后的磁盘添加
卷组的分区和硬盘的分区不一样,我们叫他为逻辑卷(logical volume)
逻辑卷用什么格式呢?我这里选择的是gfs2

现在p1上设置clvmd,用来识别lvm

[root@p2 ~]# lvmconf --enable-cluster
[root@p2 ~]# chkconfig --level 35 clvmd on

我是在iscsi这台机器上用Conga Cluster and Storage Management System对整个集群进行设置的,相当方便
那么先初始化Conga服务吧

[root@iscsi ~]# 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...
Luci server has been successfully initialized


Restart the Luci server for changes to take effect
eg. service luci restart

然后重启服务

[root@iscsi ~]# service luci restart
Shutting down luci: [  OK  ]
Starting luci: [  OK  ]

Point your web browser to https://iscsi.yubo.org:8084 to access luci

先建立一个集群吧,至于为什么这样做,请参照<iscsi+clvm+gfs2+xen+Cluster(五)–能自动迁移的virtual server>

点击submit后

cluster成员经历安装-重启-配置-结合4个步骤

现在应该能看到

如果还是不放心,想进一步确认是不是正常的话,好吧,点击上面那个图上的p1.yubo.org

现在总该放心了吧,那么进入正题,storage->system list->p1.yubo.org->Volume Groups->New Volume Group
将p1上的3个共享硬盘做成一个卷组,名字就叫vg1吧

添加完成之后,点击vg1上面的蓝条,建立逻辑卷

p1.yubo.org上的gfs2也就配置完成了
p2.yubo.org按道理刷新后应该跟p1一样,毕竟是一个cluster,而且3个硬盘的scsi id都是一样的
不过我做试验的时候p2看上去没有任何变化,那么硬着头皮再配置一遍吧
进入p2的配置页面,创建卷组(心想这样重新创建的vg跟p1的vg1不一致怎么办)
果然报错了
刷新以后,p1的配置更新到p2上来了….

9月 05

iscsi+clvm+gfs2+xen+Cluster(三)–iscsi的配置

cluster, linux, vmware 1 Comment »

我的目的就是让p1,p2这2台机器能使用到iscsi共享的磁盘,那么开始把

domain:yubo.org

         iscsi:192.168.1.100
               |
     __________|___________
    |                      |
 p1:192.168.1.101      p2:192.168.1.102
(v1:192.168.1.111)    (v2:192.168.1.112)

#########################服务端##########################

[iscsi.yubo.org]
在iscsi上加装一块12G的scsi硬盘,作为共享磁盘(sdb)
分3个区吧,让共享磁盘看上去多一点,到后面做clvm直观些
分区之后:

[root@iscsi ~]# fdisk -l /dev/sdb

Disk /dev/sdb: 12.8 GB, 12884901888 bytes
255 heads, 63 sectors/track, 1566 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1         499     4008186   83  Linux
/dev/sdb2             500        1000     4024282+  83  Linux
/dev/sdb3            1001        1566     4546395   83  Linux

#为了使sdb1,sdb2,sdb3共享出去
#先开启相应的tgtd(SCSI Target Administration)服务吧

[root@iscsi ~]# service tgtd start

#使用tgtadm 定义iscsi target 的qualified 名字：

[root@iscsi ~]# tgtadm --lld iscsi --op new --mode target --tid=1 --targetname org.yubo.disk1
[root@iscsi ~]# tgtadm --lld iscsi --op new --mode target --tid=2 --targetname org.yubo.disk2
[root@iscsi ~]# tgtadm --lld iscsi --op new --mode target --tid=3 --targetname org.yubo.disk3

#使用 tgtadm 为上一步创建的目标增加分区：

[root@iscsi ~]# tgtadm --lld iscsi --op new --mode logicalunit --tid 1 --lun 1 -b /dev/sdb1
[root@iscsi ~]# tgtadm --lld iscsi --op new --mode logicalunit --tid 2 --lun 1 -b /dev/sdb2
[root@iscsi ~]# tgtadm --lld iscsi --op new --mode logicalunit --tid 3 --lun 1 -b /dev/sdb3

#使用tgtadm 允许客户端访问这三个目标逻辑卷：

[root@iscsi ~]# tgtadm --lld iscsi --op bind --mode target --tid 1 -I ALL
[root@iscsi ~]# tgtadm --lld iscsi --op bind --mode target --tid 2 -I ALL
[root@iscsi ~]# tgtadm --lld iscsi --op bind --mode target --tid 3 -I ALL

#使用tatadm 验证所有的目标逻辑卷定义正确：

[root@iscsi ~]# tgtadm --lld iscsi --op show --mode target |grep Target

#为了使这个配置永远生效

[root@iscsi ~]# chkconfig --level 35 tgtd on
[root@iscsi ~]# cat >> /etc/rc.local <<EOF
tgtadm --lld iscsi --op new --mode target --tid=1 --targetname org.yubo.disk1
tgtadm --lld iscsi --op new --mode target --tid=2 --targetname org.yubo.disk2
tgtadm --lld iscsi --op new --mode target --tid=3 --targetname org.yubo.disk3
tgtadm --lld iscsi --op new --mode logicalunit --tid 1 --lun 1 -b /dev/sdb1
tgtadm --lld iscsi --op new --mode logicalunit --tid 2 --lun 1 -b /dev/sdb2
tgtadm --lld iscsi --op new --mode logicalunit --tid 3 --lun 1 -b /dev/sdb3
tgtadm --lld iscsi --op bind --mode target --tid 1 -I ALL
tgtadm --lld iscsi --op bind --mode target --tid 2 -I ALL
tgtadm --lld iscsi --op bind --mode target --tid 3 -I ALL
EOF

#############################客户端#########################
[p1.yubo.org]
确认iscsid/iscsi是开启的(默认是开启的

运行下面命令，discovery iscsitarget上的逻辑卷：

[root@p1 ~]# iscsiadm -m discovery -t sendtargets -p 192.168.1.100
192.168.1.100:3260,1 org.yubo.disk1
192.168.1.100:3260,1 org.yubo.disk2
192.168.1.100:3260,1 org.yubo.disk3

说明iscsi 上共享的逻辑卷已经成功识别。

使用 iscsiadm 登录目标服务器(iscsi):

[root@p1 ~]# iscsiadm -m node -T org.yubo.disk1 -p 192.168.1.100 -l
Login session [iface: default, target: org.yubo.disk1, portal: 192.168.1.100,3260]
[root@p1 ~]# iscsiadm -m node -T org.yubo.disk2 -p 192.168.1.100 -l
Login session [iface: default, target: org.yubo.disk2, portal: 192.168.1.100,3260]
[root@p1 ~]# iscsiadm -m node -T org.yubo.disk3 -p 192.168.1.100 -l
Login session [iface: default, target: org.yubo.disk3, portal: 192.168.1.100,3260]

#用fdisk查看吧

[root@p1 ~]# fdisk -l

Disk /dev/sda: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        2295    18434556   83  Linux
/dev/sda2            2296        2360      522112+  82  Linux swap / Solaris

Disk /dev/sdb: 4104 MB, 4104382464 bytes
127 heads, 62 sectors/track, 1018 cylinders
Units = cylinders of 7874 * 512 = 4031488 bytes

Disk /dev/sdb doesn't contain a valid partition table

Disk /dev/sdc: 4120 MB, 4120865280 bytes
127 heads, 62 sectors/track, 1022 cylinders
Units = cylinders of 7874 * 512 = 4031488 bytes

Disk /dev/sdc doesn't contain a valid partition table

Disk /dev/sdd: 4655 MB, 4655508480 bytes
144 heads, 62 sectors/track, 1018 cylinders
Units = cylinders of 8928 * 512 = 4571136 bytes

Disk /dev/sdd doesn't contain a valid partition table

#从上面看出， iscsi.yubo.org 上的三个逻辑卷， 分别被识别成了本地磁盘/dev/sdb,/dev/sdc,/dev/sdd 三个本地磁盘。
#以上用iscsiadm命令所登陆到的目标服务器信息,会被自动保存到/var/lib/iscsi/目录,所以不用担心重启丢失的问题

[root@p1 ~]# ls /var/lib/iscsi/nodes/
org.yubo.disk1  org.yubo.disk2  org.yubo.disk3

#接着在这三个磁盘上，分别建立一个分区，建立成功后的结果应为：

[root@p1 ~]# fdisk -l

Disk /dev/sda: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        2295    18434556   83  Linux
/dev/sda2            2296        2360      522112+  82  Linux swap / Solaris

Disk /dev/sdb: 4104 MB, 4104382464 bytes
127 heads, 62 sectors/track, 1018 cylinders
Units = cylinders of 7874 * 512 = 4031488 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1        1000     3936969   83  Linux

Disk /dev/sdc: 4120 MB, 4120865280 bytes
127 heads, 62 sectors/track, 1022 cylinders
Units = cylinders of 7874 * 512 = 4031488 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1               1        1000     3936969   83  Linux

Disk /dev/sdd: 4655 MB, 4655508480 bytes
144 heads, 62 sectors/track, 1018 cylinders
Units = cylinders of 8928 * 512 = 4571136 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdd1               1        1000     4463969   83  Linux

#运行下面命令，discovery iscsitarget上的逻辑卷：

[root@p1 ~]# iscsiadm -m discovery -t sendtargets -p 192.168.1.100
192.168.1.100:3260,1 org.yubo.disk1
192.168.1.100:3260,1 org.yubo.disk2
192.168.1.100:3260,1 org.yubo.disk3

说明iscsi 上共享的逻辑卷已经成功识别。

p2上也做相应的配置,只是登陆到目标服务器以后,不用分区了

iscsi配置也就完成了

9月 05

iscsi+clvm+gfs2+xen+Cluster(二)–xen虚拟机的安装

cluster, linux, vmware No Comments »

[dhcp.yubo.org]

#修改为用来安装虚拟机的ks文件

  1. [root@dhcp ~]# cat /var/www/html/ks.cfg << EOF
  2. key 4c10c9d64c6b34c9
  3. lang en_US.UTF-8
  4. keyboard us
  5. xconfig --startxonboot
  6. network --device eth0 --bootproto static --ip 192.168.1.111 --hostname v1.yubo.org --netmask 255.255.255.0 --gateway 192.168.1.254 --nameserver 202.103.24.68
  7. rootpw mario
  8. firewall --disabled
  9. authconfig --enableshadow --enablemd5
  10. selinux --disabled
  11. timezone Asia/Shanghai
  12. bootloader --location=mbr --driveorder=sda --append="rhgb quiet"
  13. # The following is the partition information you requested
  14. # Note that any partitions you deleted are not expressed
  15. # here so unless you clear all partitions first, this is
  16. # not guaranteed to work
  17. clearpart --linux
  18. part / --fstype ext3 --size=3584
  19. part swap --size=256
  20. %packages
  21. @cluster-storage
  22. @admin-tools
  23. @editors
  24. @text-internet
  25. @gnome-desktop
  26. @core
  27. @base
  28. @clustering
  29. @java
  30. @base-x
  31. @graphics
  32. @graphical-internet
  33. scsi-target-utils
  34. iscsi-initiator-utils
  35. kexec-tools
  36. bridge-utils
  37. device-mapper-multipath
  38. xorg-x11-utils
  39. xorg-x11-server-Xnest
  40. libsane-hpaio
  41. -sysreport
  42. EOF

将rhel5的iso插入dhcp.yubo.org的光驱->挂载->共享到apache的DocumentRoot目录,给v1用来远程安装

[root@dhcp ~]# mkdir /mnt/cdrom
[root@dhcp ~]# mount /dev/cdrom /mnt/cdrom
[root@dhcp ~]# ln -s /mnt/cdrom /var/www/html/cdrom

[p1.yubo.oirg]
进入图形界面,执行
[root@iscsi ~]# virt-manager
一路forward,途中填入

system Name:v1
Paravirtualized
Install Medai URL: http://192.168.1.5/cdrom
Kickstart URL: http://192.168.1.5/ks.cfg
Simple File-&gt;File Location: /var/lib/xen/images/v1.img
Shared physical device -&gt; Device: xenbr0
VM Max Memory(MB): 252
VM Startup Memory(MB): 252
VCPUs:1

等待一段时间后,v1.yubo.org就安装完成了,下面是过程的截图








9月 05

iscsi+clvm+gfs2+xen+Cluster(一)—环境的搭建

cluster, linux, vmware No Comments »

根据史应生先生的<基于红帽企业版Linux RHEL5U2 GFS2＋ISCSI＋虚拟化XEN＋Cluster 的高可用性（HA）解决方案>一文的做了相应的实验,下面是自己的试验笔记,其中有些与原文有些不一致.

试验条件所限,全部试验机器在vmware(rhel5)上完成
hw: thinkpadT61/CPU:7300/RAM:3G
OS: windowXP

拓扑图

domain:yubo.org

         iscsi:192.168.1.100
               |
     __________|___________
    |                      |
 p1:192.168.1.101      p2:192.168.1.102
(v1:192.168.1.111)    (v2:192.168.1.112)

先用一个临时的192.168.1.5(dhcp.yubo.org)搭建dhcpd/apache用来以ks方式安装rehl5

[安装iscsi.yubo.org]

vmware->新建一个rhel5,ram分了500MB

在dhcp上

  1. [root@dhcp ~]# cat /var/www/html/ks.cfg << EOF
  2. key 4c10c9d64c6b34c9
  3. lang en_US.UTF-8
  4. keyboard us
  5. xconfig --startxonboot
  6. network --device eth0 --bootproto static --ip 192.168.1.100 --hostname iscsitarget.yubo.org --netmask 255.255.255.0 --gateway 192.168.1.254 --nameserver 202.103.24.68
  7. rootpw mario
  8. firewall --disabled
  9. authconfig --enableshadow --enablemd5
  10. selinux --disabled
  11. timezone Asia/Shanghai
  12. bootloader --location=mbr --driveorder=sda --append="rhgb quiet"
  13. # The following is the partition information you requested
  14. # Note that any partitions you deleted are not expressed
  15. # here so unless you clear all partitions first, this is
  16. # not guaranteed to work
  17. clearpart --linux --drives=sda
  18. part / --fstype ext3 --size=18000
  19. part swap --size=512
  20. %packages
  21. @cluster-storage
  22. @admin-tools
  23. @editors
  24. @virtualization
  25. @gnome-desktop
  26. @core
  27. @base
  28. @clustering
  29. @base-x
  30. @graphical-internet
  31. scsi-target-utils
  32. iscsi-initiator-utils
  33. kexec-tools
  34. bridge-utils
  35. device-mapper-multipath
  36. xorg-x11-utils
  37. xorg-x11-server-Xnest
  38. libsane-hpaio
  39. -sysreport
  40. EOF

开启dhcpd/httpd服务

[iscsi.yubo.org]
插入rhel5的iso,用以下命令从光盘启动

#linux fs=http://192.168.1.5/fs.conf

安装完成之后,修改hostname和hosts文件

[root@iscsi ~]# cat /var/www/html/ks.cfg << EOF
127.0.0.1       localhost.localdomain   localhost
192.168.1.5     dhcp.yubo.org
192.168.1.100   iscsi.yubo.org
192.168.1.101   p1.yubo.org
192.168.1.102   p2.yubo.org
192.168.1.111   v1.yubo.org
192.168.1.112   v2.yubo.org

关机

[root@iscsi ~]# init 0

[p1.yubo.org]
用iscsi克隆出p1,p1的ram调至1G,启动后,修改hostname/ip地址/网卡的mac地址
在p1上安装用xen安装虚拟机v1.yubo.org(具体步骤请参照<iscsi+clvm+gfs2+xen+Cluster(二)>)

[p2.yubo.org]
用p1克隆出p2,启动后,将p2,v2的hostname/ip地址/网卡的mac地址做相应修改
将5台机器相应的ip,netmask设置正确后,将不必要的服务全部关了,运行级别都调到3,这样速度快点

保证5台机器之间通过机器名能互相访问到,到此为止,试验环境也就搭建完成