Well, I would avoid NAS as it introduces unwanted overhead when
accessing the data. As for SAN versus the internal RAID5, I am not sure,
I would say benchmark the two and see which comes out better, or wait to
see if there is anyone out there that has dealt with both.
Regards,
Mike Hillyer
Avoid NAS... that's like dealing with mysql via NFS ...
Internal raid depending on controller type and disk configuration could be
faster than an external SAN... But chances are external SAN has alot more
scalability as far as adding more controller, cabinets and disks...
If it was my choice