hp ProLiant DL320 generation 2 server high-density deployment technical white paper 26
configuration C: traditionalist (28 servers, 24 A low voltage)
The following calculation verifies supporting 28 servers (derated power budget) with 24 A
low-voltage PDUs:
Since there are 4 PDUs supporting 28 servers, each PDU will need to support up to 7 servers. A
24 A low-voltage PDU supporting 7 servers can allocate each server with maximum current of
24/7 = 3.43 A. Assuming 110 V, the allocated maximum input power for each server will be:
3.43 A * 110 V = 377 W
The maximum thermal dissipation per server will be:
377 W * 3.41 = 1285 BTUs/hour
For 28 servers, the total thermal dissipation will be 1285*28 = 35,995 BTUs/hour.
In the “power and thermal budgeting” section, a fully configured system was measured to
consume lower than 250 W (Table 3, server configuration 4). Since the derated server
configuration input power is lower than 241 W, then 28 servers can be supported via this
configuration summary.
Table 13. Configuration C Summary
Configuration C Summary
Rack Contents
Units
28 Servers with all fixed or all sliding rails with cable trays
4 Low-voltage 24 A PDUs vertically mounted in the side panel compartments
Internal Cables
28 Power cords going to 4 PDUs in the side panels [These cables are supplied with the servers.]
Cables External to Rack
28 Management network cables from the optional Remote Insight Lights-Out Edition’s RJ-45 connector to external
switches
28 Data network cables from on-board RJ-45 to external switches, assuming use of only one LAN connection per
server
4 Input power cords from the rack to external power outlets
Site Utility Requirements (worst-case)
Power: 4 Dedicated 100 V-120 V 30 A branch circuits.
Thermal: Up to 35,995 BTUs/hour [This number is a worst-case. The actual BTUs/hour will depend on the
OS/application software running and the server hardware configurations.]
Weight: Up to 1,690 lb (with sliding-rails) [The network cables are not accounted for since most implementations
route the network cables to the ceiling-hung cable rails outside of the rack.]
Configuration-B Parts List
ProLiant DL320 Generation 2 Sliding Rail Option Kit, P/N
233274-B21
Low-voltage 24 A PDU Option, P/N 207590-D71
Vertical-Mount PDU Bracket Kit, P/N 191265-B21
Qty.
36
4
1
Notes
Optional for in-rack servicing
N.A. (See Note A.)
Contains 8 PDU brackets
Note: This list does not include the rack, the servers, and the network cables.
(A) Low-voltage PDUs are available only in North America and Japan.
To Next Page
Loading...
