Bull Escala EPC1200, Connecting Manual, Page: 24 / 224

5-2
EPC Connecting Guide
User Consoles
There are 4 terminal types, see page 6-1.
•
System Console, an ASCII terminal (BQ306)
•
Graphics Display (on all models except on the EPC800 model) that substitutes to an
ASCII system console with graphical capabilities
•
Cluster Console, a self–bootable X Terminal
•
PowerConsole, an Escala S Series.
For administration purpose, there are two private networks:
•
A serial network for configuration with more than 2 nodes. In that case all the nodes are
linked to a console concentrator (3COMs CS2600 terminal server) enabling from a single
terminal attached to it, to have the system console function for every node.
•
A dedicated–administration ethernet network enabling to operate the cluster with
graphical tools. The dedicated–administration network is made up with a Superstack II
Ethernet Hub. The dedicated administration network is mandatory if a cluster console is
ordered for a two–node powercluster. In other cases, it is optional.
For a uni–node Powercluster, a System Console or a Graphics Display can be used. There
is no Graphics Display for the EPC800 model.
For a Two–node Powercluster, the possible configurations in terms of consoles are:
•
a System Console attached to every node,
•
or a System Console attached to a first node, a Graphics Display attached to the second
node, plus a crossed Ethernet cable for linking the two nodes,
•
or a System Console that may be attached to a node, a Cluster Console attached to the
other node along with a dedicated administration network,
•
or a PowerConsole that comes with a Console Concentrator to link the PowerConsole to
all the nodes.
For any configuration with more than 2 nodes, there can be:
•
a PowerConsole
•
or a Cluster Console.
In both cases, there is a console concentrator and the dedicated–administration network is
optional.