How to stripe datafiles in SAN environment

Hi,
We're using Blade servers with SAN(Storage Area Network) environment. Datafile striping gives better performance. But Can anybody tell me what to do in case of SAN environment.

SANs are usually networks of large disk arrays.
Data striping and redundancy should have been taking care of, there's no need to manual configure.
More info about SAN
http://en.wikipedia.org/wiki/Storage_area_network

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