VM Esx 4.1 VM ocfs2 Installation

 

I. Preparations

Virtual System: VM esx 4.1 IP: 172.21.2.184

Install sshd by default.

Vi/etc/ssh/sshd_config

Change PermitRootLogin no to PermitRootLogin yes, save and exit

Then Restart sshd.

Service sshd restart

 

In this way, you can remotely log on to this virtual machine using ssh.

 

Use IE to access http: // 172.21.2.184 and download vSphere Client and vSphere Vcenter

Install the vSphere Client.

 

Ii. Create a VM

Create two virtual hosts

System: centos 5.4

Hard Disk; 20 GB

Memory: 388 MB

Set only one Nic. The heartbeat IP uses a private IP address. This is the test environment.

The IP addresses are 172.21.2.177 and 172.21.2.43 respectively.

Host Name: VMZJJTES01 and VMZJJTEST02

Disable the firewall and selinux for testing convenience.

 

Enter the created VM system.

Edit the hosts file

Vi/etc/hosts

 

127.0.0.1 vmzjtest01 localhost. localdomain VMZJJTEST01

: 1 localhost6.localdomain6 localhost6

172.21.2.177 VMZJJTEST01

172.21.2.43 VMZJJTEST02

And

127.0.0.1 vmzjtest02 localhost. localdomain VMZJJTEST02

: 1 localhost6.localdomain6 localhost6

172.21.2.177 VMZJJTEST01

172.21.2.43 VMZJJTEST02

 

View System Kernel

Uname-

Linux VMZJJTEST02 2.6.18-164. el5 #1 SMP Thu Sep 3 03:33:56 EDT 2009 i686 i686 i386 GNU/Linux

 

 

 

The virtual machine is ready.

 

3. Create a virtual shared Disk

 

Use putty to remotely log on to the 172.21.2.184 virtual server.

Create Disk

Cd/vmfs/volumes/4 exxxxxxxxxxxxxx

The above 4exxxxxx varies depending on the virtual server.

 

Mkdir mydisk

 

Cd mydisk

 

Create a 10 Gb shared Disk

 

Vmkfstools-c 10240 m-a lsilogic-d eagerzeroedthick mydisk. vmdk

 

4. Add a Virtual Disk

Log on to the vSphere Client, select VMZJJTEST01, and select edit-add disk-select existing virtual disk-independent-permanent. Note that if the local hard disk of the virtual machine is scsi 0 node, such as scsi0: 0, then the added virtual shared disk should be set to scsi1: 0 or a later node. This is important.

Go to the directory where the VM of 172.21.2.184 is located.

Cd/vmfs/volumes/4 exxxxxxxxxxxxxx

Edit VMZJJTEST01.xmx

 

You need to modify or add the following items:

Scsi1.sharedBus = "virtual"

Disk. locking = "false"

DiskLib. dataCacheMaxSize = "0"

DiskLib. datachemaxreadaheadsize = "0"

DiskLib. DataCacheMinReadAheadSize = "0"

DiskLib. dataCachePageSize = "4096"

DiskLib. maxUnsyncedWrites = "0"

In this way, the virtual shared disk is added, and you can add another one.

 

V. Installing ocfs2

Download the corresponding ocfs2 version based on the kernel.

Download three installation packages in the following order:

Ocfs2-tools-1.4.4-1.el5.i386.rpm

Ocfs2-2.6.18-164.el5-1.4.7-1.el5.i686.rpm

Ocfs2console-1.4.4-1.el5.i386.rpm

Use rpm-ivh xxxxxx for direct installation.

After the installation is complete, enter the ocfs2 graphic interface

Ocfs2console &

 

Note: The above graphic interface is obtained using xming software.

Start o2cb

/Etc/init. d/o2cb start

 

Click-cluster-Configure Nodes in the graphic interface to Configure the node.

Enter the corresponding host name and IP address, and port 7777. Add two hosts here.

Click "application"-"exit ".

Assume that the above configuration is set in VMZJJTEST01. Log on to the machine and run the following command:

Scp/etc/ocfs2/cluster. conf root@172.21.2.43:/etc/ocfs2/

The above command may prompt that the machine 172.21.2.43 has no directory. Please create a directory on this machine

Mkdir/etc/ocfs2

 

Then, configure the two machines as follows:

/Etc/init. d/o2cb unload

 

 

/Etc/init. d/o2cb offline ocfs2

 

/Etc/init. d/o2cb configure

Processing the O2CB driver. this will configure the on-boot properties of the O2CB driver. the following questions will determine whether the driver is loaded onboot. the current values will be shown in brackets ('[]'). hitting <ENTER> without typing an answer will keep that current value. ctrl-Cwill abort. load O2CB driver on boot (y/n) [n]: y

Cluster to start on boot (Enter "none" to clear) [ocfs2]: ocfs2

Writing O2CB configuration: OK

Loading module "configfs": OK

Mounting configfs filesystem at/config: OK

Loading module "ocfs2_nodemanager": OK

Loading module "ocfs2_dlm": OK

Loading module "ocfs2_dlmfs": OK

Mounting ocfs2_dlmfs filesystem at/dlm: OK

Starting cluster ocfs2: OK

 

The roughly displayed content is shown as above, which is slightly different. Please make your own judgment.

This setting is required for both machines.

6. Partitioning and mounting

Use fdisk/dev/sdb to divide a virtual shared disk into two partitions.

They are/dev/sdb5 and/dev/sdb6.

Run the following command to format the file system:

# Mkfs. ocfs2-B 4 K-C 32 K-N 4-L webdatafile/dev/sdb5

/Dev/sdb6: replace webdatafile with the webos.-L parameter and then set it.

Then create the directories u01 and u02

Mount/dev/sdb5 and/dev/sdb6 to the u01 and u02 directories respectively.

Mount-t ocfs2-o datavolume, nointr-L "webdatafile"/u01

 

Mount-t ocfs2-o datavolume, nointr-L "webos"/u02

Partition and format the file system on one machine.

However, mounting requires two instances at the same time.

7. Automatically Start o2cb and mount u01 and u02 at startup

Chkconfig -- add o2cb

 

Chkconfig o2cb on

 

The fstab for automatic mounting is as follows:

 

 

/Dev/sdb5/u01 ocfs2 _ netdev, datavolume, nointr 0 0

/Dev/sdb6/u02 ocfs2 _ netdev, datavolume, nointr 0 0

For more information about the functions and principles of OCFS2, see Gu Ge.

 

This article is from the "Sui QIQIU" blog