A server class must be assigned to each server when it is added by means of the system procedure sp_addserver. Server classes determine the access method used to interact with the remote server. The server classes are:
ASEnterprise – Used if the server is an Adaptive Server Enterprise version 11.5 or later. This is the default server class.
ASAnywhere – Used if the server is an Adaptive Server Anywhere version 6.0 or later.
ASIQ – Used if the server is an Adaptive Server IQ version 12.5
sql_server – indicates that the server is a Sybase SQL Server™ . Component Integration Services determines whether the Sybase server is a release 10.0 or later server (supports cursors and dynamic SQL) or a pre-release 10.0 server (does not support cursors or dynamic SQL).
local – the local server. There can be only one.
direct_connect – indicates that the server is an Open Server™ application that conforms to the interface requirements of a DirectConnect™ server. For access to Microsoft SQL Server a DirectConnect must be used.
access_server – a synonym for server class direct_connect for compatibility with previous releases.
db2 – indicates that the server is a gateway to DB2 or DB2-compatible databases. This class is provided only for backward compatibility. The preferred class is direct_connect.
sds – indicates that the server conforms to the interface requirements of a Specialty Data Store.