> Has anyone designed/implemented postgresql server on storage networks?

Yes, runs their stuff this way.  Probably others as well.

> Are there any design considerations?

I don't know.   Probably.

> Are there any benchmarks for storage products (HBAs, Switches, Storage
> Arrays)?

Not specific to PostgreSQL.    I'm sure there are generic benchmarks.   Keep 
in mind that PostgreSQL needs lots of 2-way I/O, batch writes, and random 

> Any recommendation on the design, resources, references, keeping PG in
> mind?

See above.   Also keep in mind that PostgreSQL's use of I/O should improve 
100% in version 7.5.

-Josh Berkus
 Aglio Database Solutions
 San Francisco

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