NonStop NS-Series Servers Site Preparation (H06.03+)

HP Integrity NonStop NS-Series Site Preparation Guide—527836-005
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Calculating Specifications for
Enclosure Combinations
All example configurations in this appendix show listed components installed in a
single modular (42U) HP modular cabinet. Cabinet weight includes the PDUs and their
associated wiring and receptacles.
All power and thermal calculations assume that each enclosure in the cabinet is fully
populated; for example, a slice with four processors. The power and heat load is less
when enclosures are not fully populated, such as a slice with fewer processors or less
memory, a disk-drive enclosure with fewer disk drives, or an LSU enclosure with fewer
LSUs.
AC current calculations assume that one PDU delivers all power. In normal operation,
the power is split equally between the two PDUs in the cabinet. However, calculate the
power load to assume delivery from only one PDU to allow the system to continue to
operate if one of the two AC power sources or PDUs fails.
Typical Configurations
This subsection shows several typical system configurations and provides completed
weight, power, and thermal calculations for each cabinet in each system. For a total
thermal load for a system with multiple cabinets, add the heat outputs for all the
cabinets in the system.
Systems covered are:
Topic Page
Duplex 4-Processor System
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Duplex 16-Processor System, Three Cabinets A-4
Triplex 4-Processor System A-6
Triplex 16-Processor System, Three Cabinets A-8