Determining The Number Of Racks; Dense Cluster Using 1U Server; Dense Cluster Using 2U Server - HP Cluster Platform Introduction v2010 Introduction Manual

After configuration, the individual racks are disconnected and are mounted on shock pallets for
shipment. Some cables that run between racks are connected to their origin ports, and then looped
and secured within the rack cabinet. This ensures that the cluster is complete and allows for
quick installation of the equipment at the installation site.
This site preparation guide enables you to determine the site requirements and making the
necessary preparations for delivery, power, and network considerations. It also describes the
following procedures, which apply to all installations:
• Taking delivery of the equipment and removing it from the packaging.
• Moving the racks into place, leveling the racks, and bolting them together.
The installation process for a cluster involves the following steps, which are described in detail
in the documentation for a specific cluster model:
1. Connecting and routing cables between the racks.
2. Connecting the cluster's external network link cables to the LAN or WAN.
3. Connecting the cluster's external power cables to the appropriate power sources. Depending
on the installation and connection type, local regulations might specify that a certified
electrical technician be available to perform this task.
4. Turning on each of the cluster components in sequence.
5. Entering license information to unlock preinstalled software on the HP Cluster Platform, or
installing an operating system and any associated products.
6. Performing diagnostics to ensure correct assembly.
7. Troubleshooting the hardware assembly, if necessary.

1.2 Determining the Number of Racks

The cluster hardware is organized into modules (such as CBBs) containing different components,
in which one module equals one rack. See the Cluster Platform Overview for more information.
Dense clusters are restricted to the following configurations, depending on whether the application
server is a 1U design
Table 1-1 Dense Cluster Using 1U Server
Nodes
16–32
32–64
64–99
99–128
Table 1-2 Dense Cluster Using 2U Server
Nodes
16–24
24–42
42–60
60–128
For modular (custom) clusters, the actual number of racks in a cluster is determined by the
configuration rules for the number of nodes selected. As you can see from the last line of
the number of racks increases exponentially as node numbers increase. This is because more
interconnects (IBBs) are required, for the reasons described in Cluster Platform Overview.
If you have already generated an order for a custom cluster, you will know the number of
modules. Otherwise, consult the online cluster documentation for information about the number
16 Installation Planning
(Table 1-1) or 2U design
Racks
1
2
3
4
Racks
2
3
4
12
(Table 1-2).
Modules
1 C/UBB (combined)
1 CBB, 1 UBB
2 CBB, 1 UBB
3 CBB, 1 UBB
Modules
1 CBB, 1 UBB
2 CBB, 1 UBB
3 CBB, 1 UBB
7 CBB, 3 IBB, 1 UBB, 1 UXR
Table 1-2,