IBM Websphere Question

IamtheWalrus

I am new to Websphere and would like if someone could help clarify my understanding of my set-up in my office.

I have a web application that has 2 clusters, with 2 nodes in each cluster.

I know the set-up is deployed on 2 machines; A and B. I know that both machines are involved in each cluster, e.g.

Cluster 1 has a node from A and one from B.
Cluster 2 has a node from A and one from B also.

I'm a little confused at how the set-up works. In the above, how many Websphere application servers are there? What is a cell?

Any help is very welcome.

IamtheWalrus

I found this resource but it's still hasn't cleared it up.
IBM

cython

IamtheWalrus wrote: »

I am new to Websphere and would like if someone could help clarify my understanding of my set-up in my office.

I have a web application that has 2 clusters, with 2 nodes in each cluster.

I know the set-up is deployed on 2 machines; A and B. I know that both machines are involved in each cluster, e.g.

Cluster 1 has a node from A and one from B.
Cluster 2 has a node from A and one from B also.

I'm a little confused at how the set-up works. In the above, how many Websphere application servers are there? What is a cell?

Any help is very welcome.

Nodes, etc. in WAS are a bit of an abstract concept, but ultimately the hierarchy of organisation goes cell (top level) -> node -> server. In parallel with this, a cluster is a grouping of application servers, each of which is configured on/within a node, resulting in the alternative hierarchy of cell -> cluster -> server. So a cluster is a logical grouping of application servers, while a node is more of a physical location for these servers. The cell is the top level organisation "container" or scope and everything exists within that, albeit most stuff is defined at sub-scopes.

In your specific example, it sounds as though you have one cell, with 2 nodes and 2 clusters. Each cluster has a server physically located within each of the 2 nodes, i.e. you have the servers cluster1node1, cluster1node2, cluster2node1 and cluster2node2. To be really precise about it, clusters do not contain nodes, but they contain servers which exist within a node, if that makes sense?

counterpointaud

IamtheWalrus wrote: »

I am new to Websphere and would like if someone could help clarify my understanding of my set-up in my office.

I have a web application that has 2 clusters, with 2 nodes in each cluster.

I know the set-up is deployed on 2 machines; A and B. I know that both machines are involved in each cluster, e.g.

Cluster 1 has a node from A and one from B.
Cluster 2 has a node from A and one from B also.

I'm a little confused at how the set-up works. In the above, how many Websphere application servers are there? What is a cell?

Any help is very welcome.

If I understand correctly, you have have two application servers here, each clustered across two nodes. Do you have access to the WAS admin console? It would probably make everything much clearer.

IamtheWalrus

Thanks all. I finally got it sorted in my head. You were right.