HP Scalable Visualization Array Software - Manual (Page 28)

The management switches are collected together in one rack. SVA nodes connect to branch
switches in the Administrative Network. SVA nodes do not connect to the console branch.
Nodes connect to the switches according to the Cluster Platform Administrative Network
connections for HP XC. Display and render node types are typically grouped together.
3.5 Display Devices
SVA supports a wide range of displays and configurations, including single displays, tiled
displays in walls, and immersive CAVE environments using projector systems. SVA relies on
the display capabilities of the graphics cards in the display nodes. This means that the SVA lets
you use the wide range of display devices that are supported by the graphics card.
Depending on the demands of the display devices, you can use digital or analog output. The
aggregate resolution of these displays can range from 10s to 100s of megapixels.
The SVA supports up to eight display nodes
1
in a Display Surface. The display nodes in your
cluster can drive one or two display devices in the case of the xw8200, xw8400, DL140 G3, and
DL145 G3 nodes, and one to four display devices in the case of xw9300 or xw9400 nodes. (Note
that the xw8400 can be used to drive four display devices when ordered and configured on an
exception basis.) This means that you can drive a maximum of 32 display devices using eight
xw9300 or xw9400 nodes.
Theoretically, SVA technology can scale to arbitrarily large displays. Realistically, the bandwidth
of the network delivering subparts of the image to various nodes, and the resolution of display
devices are limiting factors. You can create large displays by arranging a grid of smaller displays.
See the SVA System Administration Guide for more information on setting up display nodes and
devices.
3.6 SVA Software Summary
The SVA combines third party software tools and libraries with custom and enhanced software
tools and libraries. SVA software must be installed and run on each visualization node as well
as the head node of a valid cluster configuration, such as an HP Cluster Platform 3000 or HP
Cluster Platform 4000, properly configured for HP XC System Software with the SVA option.
This section describes the following software categories:
•
Linux Operating System.
• HP XC clustering software.
• Additional system software.
Figure 3-2 illustrates the various software categories and their hierarchical interrelationships, as
well as the tasks carried out by the utilities provided by HP Visualization System Software (VSS).
These tasks — allocate, launch, initialize, cleanup — are aligned alongside the software categories
they impact.
1. More display nodes may be supported on an exceptional basis.
28 SVA Hardware and Software