Symmetrical cluster

[Waugh]

Dear All,

How to make the Symmetrical cluster. is there any standard procedure.

Regards
Rkumar

[sujit kumar singh]

is it about the SMP that is Symmetric Multiprocessing and is related to the basic arch of the High Perf CZmputing of HP?


regards Sujit

[Matti_Kurkela]

A cluster is symmetrical if there is no single node or group of nodes that is in any way "special" compared to any other nodes.

It's mostly a design issue and/or a "meta-procedure": you design a procedure to build a node appropriate for _your_ cluster and then follow the exact same procedure with all the nodes.

In a "perfect" symmetrical cluster:

- all nodes have the same amount of resources
(the same amount of RAM, CPU and local disk)

- all nodes have identical network connectivity (the same number of NICs connected to the same subnets; of course each node must have its own hostname and IP address, but beyond that the network configurations should be all the same)

- any cluster disks must be accessible to all the nodes of the cluster, not just some sub-set of them.

- the licenses (if necessary) for any software used in the cluster must cover all the nodes (so that any node can run any software used in the cluster)

- if you need to make a change to one node, you must make the same change to all the other nodes.

MK