Determining the eSATA card in a system.

[Doll, Margaret Ann]

This is a problem I posted earlier.  I have a workstation and a server
running the same version of RH.  The server can mount the array; the
workstation cannot.

The array is attached via an eSATA connection.  I am starting to believe
that the eSATA cards on the system are different.  The array is sensitive
to the eSATA card in the system.
Without taking the systems down and "breaking" into them, how can I tell
what kind of eSATA cards they have?