HP -UX SNAplus2 Administration Manual page 86

Introduction to SNAplus2
SNAplus2 Components
configuration. You can configure a node from any other computer in the
domain, as long as the SNA software is running on the node where the
configuration is performed (whether or not the node being configured is
started).
Information about the configuration of domain resources for the complete
SNAplus2 LAN is held in a domain configuration file. If you have more
than one server on the LAN, SNAplus2 ensures that this domain
configuration information is consistent across all servers.
Benefits of Client/Server Operation
Client/server configuration provides the following benefits:
• Concentrating SNA resources on servers reduces the load on clients,
improving client performance and minimizing the storage needed to
provide SNA services to clients.
• Sharing a single data link among multiple users on different
machines eliminates the need for each machine to have a physical
SNA network connection.
• Having multiple servers provides redundant connectivity (for
example, by having multiple servers providing access to the same
host). Having multiple paths to an SNA resource enables load
balancing across the different servers and provides immediate
backup in the event that a particular server or link fails.
• Using LU pools across multiple servers makes it easy to configure
and add servers and users.
• Having fewer links and PUs for host connectivity reduces the size of
the host VTAM definition.
• Using SNAplus2 administration utilities makes it easy to configure
and manage both node resources (for any specific computer in the
domain) and shared resources (across the domain). The client/server
support provided by SNAplus2 administration tools enables
transparent administration of all domain resources from any
computer in the domain.
Master Server and Backup Servers
If you are using SNAplus2 with all programs on one computer, or on a
LAN that contains only one server, you do not need to read this section.
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