F5 VIPRION 4800 Series, Руководство по платформе, Страница: 81 / 110

DC power redundancy provisioning
The platform supports one to four DC power supplies. Each slot is provisioned to draw up to 600W; therefore,
one power supply can support two blade slots with no redundancy. This table shows some of the possible
blade and power supply redundancy configurations.
Table 3: DC power provisioning recommendations
1 + 1 redundancy No redundancy Blade quantity
2 (2600W available) 1 (2600W available) 1 (600W)
2 (2600W available) 1 (2600W available) 2 (1200W)
2 (2600W available) 1 (2600W available) 3 (1800W)
4 (5200W available) 2 (5200W available) 4 (2400W)
4 (5200W available) 2 (5200W available) 5 (3000W)
4 (5200W available) 2 (5200W available) 6 (3600W)
4 (5200W available) 2 (5200W available) 7 (4200W)
4 (5200W available) 2 (5200W available) 8 (4800W)
DC platform power consumption
The actual amount of power draw from the DC power source depends on the type and number of blades
and the redundancy configuration. This table shows several possible configurations, and the typical and
maximum power draw measured at the output of the power supply (at an input voltage of 48 VDC).
F5
®
recommends that you add 10% to the numbers in the table due to conversion loss in power supplies
when you are provisioning power and cooling.
Table 4: DC mains total system power draw
Minimum
number of
power
supplies
installed, no
redundancy Maximum
system heat,
including power
supply losses
(BTU/hr) Typical system
heat, including
power supply
losses (BTU/hr) Maximum
system
power draw
(W)
4
Typical
system
power draw
(W)
3
Blade
quantity
and type
1 4825 4515 1315 1230 1 x B4300
1 6715 6095 1830 1660 2 x B4300
1 8605 7670 2345 2090 3 x B4300
2 10495 9250 2860 2520 4 x B4300
2 12385 10825 3375 2950 5 x B4300
2 16165 13980 3890 3380 6 x B4300
2 16165 13980 4405 3810 7 x B4300
4
At 100% load and a temperature of 40°C.
3
At 50% load and a temperature of 25°C.
81
Platform Guide: VIPRION
®
4800 Series