ProLiant DL360 G2 Server High-Density Deployment

ProLiant DL360 G2 Server High-Density Deployment 23
Configuration A: Maximum Performance Density
(42 Servers, High-Voltage)
This configuration shows a “best practice” for a 42U rack with 42 servers in a high-voltage
facility where a deployment plan can accommodate the de-rating of each ProLiant DL360 G2
server. The “Power and Thermal Budgeting” section explains power budgeting methods and
measured power for different base-line configurations and subsystem components. The following
calculation verifies supporting 42 servers with 2x40 A high voltage PDUs:
Since there are 2 PDUs supporting 42 servers, each PDU needs to support 21 servers. A 40 A
high-voltage PDU supporting 21 servers can allocate each server with maximum current of
(40/21=) 1.905 A @ 208 V
. Therefore, the allocated maximum input power for each server
will be:
1.905 A * 208 V = 396 W
Since the maximum input power per server is 308 W, 308 W will be used to calculate the
maximum thermal dissipation per server. It will be:
308 W * 3.41 = 1050 BTUs/hour
For 42 servers, the total thermal dissipation will be (1050*42=) 44,112 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 238 W, then 42 servers can be supported via this
configuration summary.
Table 14. Configuration A Summary
Configuration A Summary
Rack Contents
Units
42 servers with all fixed or all sliding rails with cable trays
2 high voltage 40 A Modular PDUs
Internal Cables
42 standard power cords going to 2 PDUs in the side panels
Cables External to Rack
42 (management) network cables from the Integrated Lights-Out’s RJ45 connector to external 48 port Ethernet
switches with 44 10/100 ports and 4 Gigabit ports
84 (data) network cables from the on-board 10/100/1000 NICs’ RJ-45 connectors to six external 24 port Gigabit
Ethernet switches, assuming use of two LAN connections per server
2 high voltage input power cords hardwired from the PDUs to facility AC power feeds
Site Utility Requirements (worst-case)
Power: 2 dedicated 200 V-240 V 50 A branch circuits.
Thermal: up to 34,100 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 1,665 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.]
The optional Integrated Lights-Out Advanced Pack is recommended for all console management
(local and remote) for this configuration. The network cables originating from each ProLiant
DL360 G2 server connect to network switches outside this rack enclosure.
1713-0702A-WWEN