NonStop NS1000 Planning Guide (H06.07+)

System Installation Specifications
HP Integrity NonStop NS1000 Planning Guide—542527-003
3-6
Enclosure Power Loads
Enclosure Power Loads
The total power and current load for a modular cabinet depends on the number and
type of enclosures installed in it. Therefore, the total load is the sum of the loads for all
enclosures installed. For examples of calculating the power and current load for
various enclosure combinations, refer to Calculating Specifications for Enclosure
Combinations on page 3-13.
In normal operation, the AC power is split equally between the two PDUs in the
modular cabinet. However, if one of the two AC power feeds fails, the remaining AC
power feed and PDU must carry the power for all enclosures in that cabinet.
Power and current specifications for each type of enclosure are:
Note. If your system includes the optional rackmounted HP R5500 XR UPS, the modular
cabinet will have one PDU located on the rear left side and four extension bars on the rear right
side. To provide redundancy, components are plugged into the left-side PDU and the extension
bars. Each extension bar is plugged into the UPS.
Enclosure Type
AC Power
Lines per
Enclosure
1
Apparent Power
(volt-amps
measured on
single AC line
with one line
powered)
Apparent Power
(volt-amps
measured on
single AC line
with both lines
powered)
5
Peak Inrush
Current
(amps)
Blade element
(rx2620):
4 GB memory
8 GB memory
2
2
220
240
Per line:
125
140
Total:
250
280
17
17
IOAM enclosure
2
4 441 265 530 68
Fibre Channel
disk module
3
2 290 174 348 14
Maintenance
switch (Ethernet)
4
144--4
1
Half of the plugs for an enclosure must be connected to the left-side PDU and the other half connected to the
right-side PDU or extension bars (if the optional UPS is installed). PDUs must be supplied from separate branch
circuits.
2
Measured with 10 Fibre Channel ServerNet adapters installed and active.
3
Measured with 14 disk drives installed and active.
4
Maintenance switch has only one plug. If a UPS is installed in the modular cabinet, the maintenance switch
plug must be connected to the extension bars on the right-side of the modular cabinet.
5
Total apparent power is the sum of the two AC power lines feeding the enclosure. Electrical load is shared
equally between the two lines.