Hadoop SAN Storage reuse

[Natarajan, Prabakaran 1. (NSN - IN/Bangalore)]

Hi

I know SAN storage is not recommended for Hadoop.    But we don't want waste - 
already existing SAN Storage.

How can we make use of SAN Storage for Hadoop - what are the best methods, can 
a Ethernet upgrade helps,...?

Thanks
Prabakaran.N