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cell node , server what these terms mean ?

 
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Hi
Thank you for reading my post.
In websphere Admin console i see the followin term everywhere in resource definition
Scope: Cell=localhostNode01Cell, Node=localhostNode01
Cell : localhostNode01Cell
Node : localhostNode01
Server : server1
what is diffrence between them ?
for example i can define jdbc resource over any of them ,
can you tell me what is diffrence ?
does it mean that i can have two WAS running on my computer and i can cluster them for learning purpose?
 
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Basically,

A server is a runtime environment, a process of execution.
A node is a grouping of servers that share common configuration. It is a physical machine.
A cell is a grouping of nodes into a sigle administrative domain. For websphere, it mean that if you group several servers within a cell, then you can administer them with one Websphere admin console

Need further details ??
 
raminaa niilian
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Hi
Thank you.
I have a RAD copy and i want to learn WAS by using the Administration console.
Can i Cluster some WAS together on my desktop computer and learn clustring issues ?
even if i can cluster tomcats running on my machine it would help me too much.
thank you again.
 
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