ServerNet Cluster 6780 Planning and Installation Guide (G06.24+, H06.03+)

Planning for Installation and Migration
ServerNet Cluster 6780 Planning and Installation Guide—527301-004
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Task 6: Plan the Location of the Hardware
UPS
For 6780 switches, a UPS is optional but recommended. You can choose to use any
UPS that meets the 6780 switch power requirements for all switches being powered on
from the UPS. Refer to Table 3-7 on page 3-13. One UPS option to support the
switches is the HP UPS R3000 XR. For part numbers, refer to Uninterruptible Power
Supply (UPS) on page A-3.
For power and environmental requirements for the UPS R3000 XR, and all planning,
installation, and emergency power-off (EPO) instructions, refer to the documentation
shipped with the UPS:
•
Compaq Uninterruptible Power System Kit Quick Installation Guide for UPS R3000
XR Models
•
Compaq Power Products Documentation CD containing:
°
Compaq UPS R3000 XR Operations and Reference Guide
°
Compaq Power Products Software Reference Guide
For the Powerware ConnectUPS-X Web/SNMP/XHub Card installed in the UPS R3000
XR, refer to the ConnectUPS WEB/SNMP CARD User’s Guide.
Task 6: Plan the Location of the Hardware
You must carefully plan the location of the nodes and switches so that all supported
power cords and cables can connect within the maximum distances.
Planning the Location of the Nodes
Each node must be located so that you can connect it to the appropriate switch with a
10-meter, 40-meter, or 80-meter node fiber-optic cable.
A node in a cluster takes up the same amount of floor space as a nonclustered server.
To plan floor space for NonStop S-series servers, refer to the NonStop S-Series
Planning and Configuration Guide.
Caution. Do not exceed the 80-meter maximum cable length between a ServerNet node and
a switch. Doing so can cause multiple, unrecoverable ServerNet communication failures to and
from the node that is in violation of the distance limit.