Saturday, September 12, 2015

Windows 2008 Cluster Setup Step by step

 
A failover cluster is a group of independent computers that work together to increase the availability of applications and services. The clustered servers (called nodes) are connected by physical cables and by software. If one of the cluster nodes fails, another node begins to provide service (a process known as failover). Users experience a minimum of disruptions in service.
I have presented the storage as below. Need to say that if your two cluster server are separate Hosts then you have a way of presenting the same Volumes in to both Host. I have tried this because of the current requirement and I work fine. but this will not going to give you the full functions of the Cluster Service. because of that it’s better to have to present two different volumes from different clusters.
Storage volumes or logical unit numbers (LUNs) exposed to the nodes in a cluster must not be exposed to other servers, including servers in another cluster. The following diagram illustrates this.
image
 
First you need to present the the Luns. If your to host are physical you can easily do this and if you are using virtual environment, then you need to go with Raw device mapping. when you are doing this its better to map those volume in new SCSI Controller and change the policy as physical.
image
Then you can go in to Server manager and add a new feature.
clip_image002
Select the Failover Clustering from there and click next.
clip_image004
Click Install
clip_image006
In you both host you need to have two network interfaces and one is for the heartbeat and other one is for the management. 
image
As you can see below I have configured two different networks and Public network is having access to the production and HB network is only between those two host.
image           image
Once you done with that you can go to Failover Cluster manager and do the clustering.
clip_image008
Select Create new Cluster.
clip_image010
Click next.
clip_image012
Then you can add the cluster nodes by searching in the thee active directory. Select both the node and click next to proceed.
image
You can run the Validation testing to check whether there is any issue in those Nodes.
clip_image016
clip_image018
Select Run All Test to get a clear picture on the configuration.
clip_image020
clip_image022
clip_image024
Here I have got an error saying that one of the Cluster disk is having FAT 32 file system. I have formatted that in NTFAS and ran the test again.
clip_image026
Next page you can give the cluster name and the Cluster IP address which is common to the both the Nodes. then click next to get the configuration  information.
image
 
clip_image032
image
Once you click on the View Report. you will get the details about the task and now you will able work with the
image
This is the shortest steps that you can follow to create a Windows Cluster. now you can do some testing by creating some folders in one node and shutting down the nodes.






































No comments: