We help IT Professionals succeed at work.

IP address resouce in a cluster group

jskfan
jskfan asked
on
Medium Priority
184 Views
Last Modified: 2013-11-15
can someone tell me the purpose of creating IP address resouce and network name resource in a cluster group?

thanks
Comment
Watch Question

Commented:
I guess you can best explain this by saying its "virtual". Each node has its own IP but the point of a cluster is redundancy. So you give the cluster (node1 and node 2) a virtual name and IP. This is how the cluster is accessed. From the front nobody knows what box they are hitting and it doesn't matter to them. These are cluster resources just as disks are so if node 1 fails node 2 now knows that all requests that go to that cluster name or IP are now his job.

Not the solution you were looking for? Getting a personalized solution is easy.

Ask the Experts
Steve KnightIT Consultancy
CERTIFIED EXPERT
Commented:
Exactly.  Pretty well you can see each cluster group as like having another server.  Each generally has at least one disc resource which shares can be created on, printer spooler, possibly application resources and always needs a network name and ip address to be able to access the resources in it.  When the resource group fails over to the other node the resources in the group all go with it so the IP address, network name and discs appear on the other node.  As far as client pc's are concerned in theory they don't notice any difference.

If you have more specific question about this please ask more

Steve

Commented:
Network name & IP address resource is used for virtual server identification. When you install cluster, the applications needs to be available without users know which node is providing access to the application. TO achieve this objective, one needs to use virtual name and valid IP to access the resources running in clusters instead of node name & ip address. In that way, if the node serving the application goes down or taken off, the users need not do any changes to the connectivity part of application as the resource group would automatically failover to another node and users still able to access the resource using virtual IP & name.

Hope it gives enough explanation.
Access more of Experts Exchange with a free account
Thanks for using Experts Exchange.

Create a free account to continue.

Limited access with a free account allows you to:

  • View three pieces of content (articles, solutions, posts, and videos)
  • Ask the experts questions (counted toward content limit)
  • Customize your dashboard and profile

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

OR

Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.