ServerNet Cluster Manual

Planning for Installation
ServerNet Cluster Manual—520575-003
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Planning for Serviceability
For example, if you currently are using Expand-over-IP lines and you want to add
Expand-over-ServerNet lines and be able to use both lines together, then you must buy
the Expand/FastPipe Profile (T0533G06) for every system that will use an Expand-
over-IP line. And you must buy the Expand/ServerNet Profile (T0509G06) for every
system that will use an Expand-over-ServerNet line. You can set the SPEEDK
parameter to ETHER10 (for Expand/IP over 10 Mbps Ethernet), but the lines should
work even if you do not use SPEEDK.
For more information, see the Expand Configuration and Management Manual.
Planning for Serviceability
Serviceability planning includes planning for the system consoles and for the dedicated
OSM or TSM LAN. Planning for serviceability ensures that you can take full advantage
of the features provided by the OSM or TSM management software.
Planning for the System Consoles
Typically, each server has a primary and backup system console. However, you can
construct a dedicated LAN between multiple servers and share system consoles. If the
system consoles are shared, the ServerNet cluster must have at least one primary and
one backup system console.
Planning for the Dedicated OSM or TSM LAN
To plan for the dedicated OSM or TSM LAN, you must understand the supported LAN
configurations for OSM or TSM applications.
Supported LAN Configurations for OSM and TSM
OSM and TSM applications can be used in two types of Ethernet LAN environments: a
dedicated LAN or a public LAN. The type of LAN environment you use determines the
ServerNet cluster operations you can perform from a particular system console.
Note that you can use OSM or TSM applications to manage a server only if the server
and the system console are members of the same dedicated or public LAN. In other
words, if your dedicated LAN or public LAN includes all of the nodes in a ServerNet
cluster, you can monitor any node in the cluster from a single system console. If your
LAN includes some but not all of the nodes in a ServerNet cluster, you must use
different system console to monitor different nodes.
Note. Primary and backup system consoles are HP-approved workstations configured as
primary and backup dial-out points. System consoles have modems and can dial out incident
reports to a service provider, such as the Global Customer Support Center (GCSC).
System consoles must be installed on a dedicated LAN. Dedicated LANs are described later in
this section. In addition to primary and backup system consoles, a server can have additional
consoles that are not dial-out points and do not have to be installed on a dedicated LAN.