ProLiant DL360 G2 Server High-Density Deployment

ProLiant DL360 G2 Server High-Density Deployment 26
Configuration B: Maximum Flexibility (35 Servers,
High-Voltage)
The following calculation verifies supporting 35 servers (de-rated Power Budget) with 24 A high-
voltage PDUs:
Since there are 2 PDUs supporting 35 servers, 4 KVM switches, 4 Ethernet switches, and (1) 1U
Keyboard/Monitor, each PDU needs to support up to 22 devices. A 24 A high-voltage PDU
supporting 19 servers can allocate each server with maximum current of (24/19=) 1.26 A.
Assuming 208 V, the allocated maximum input power for each server will be:
1.26 A * 208 V = 263 W
The maximum thermal dissipation per server will be:
263 W * 3.41 = 897 BTUs/hour
For 35 servers, the total thermal dissipation will be (897*35=) 31,395 BTUs/hour
.
In the “Measured Input Power” section of this document, a fully configured system was measured
to consume lower than 250 W (Table 6, Server Configuration 4). If each de-rated server
configuration input power is lower than 263 W, then 35 servers can be supported via this
configuration summary.
Table 15. Configuration B Summary
Configuration B Summary
Rack Contents
Units
35 servers with all fixed or all sliding rails with cable trays
2 X 24 A Dual Input PDUs
2 x 48 port Ethernet switches
2 x 24 port Ethernet switches
4 KVM switches
1 x 1U Keyboard/Monitor
Internal Cables
35 power cords going to 2 PDUs
40 KVM cables going from switch to server, switch to switch and switch to 1U Keyboard/Monitor
Cables External to Rack
35 (management) network cables from the Integrated Lights-Out Edition’s RJ45 connector to two external 24 port
Ethernet switches, each with 22 10/100 ports and 2 Gigabit ports
70 (data) network cables from the on-board 10/100/1000 NICs’ RJ-45 connectors to external 48 port Ethernet
switches with 44 10/100 ports and 4 Gigabit ports, assuming use of two LAN connections per server
4 high voltage input power cords connecting from the PDUs to the facility AC power feeds
Site Utility Requirements (worst-case)
Power: 4 dedicated 200 V-240 V 30 A branch circuits (2 from each separate feed).
Thermal: up to 31,395 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 [The network cables are not accounted for since most implementations route the network
cables to the ceiling-hung cable rails outside of the rack.]
1713-0702A-WWEN