Other Add-In Components; Power Supply Unit - NEC Express5800 A2040b Configuration Manual

CONFIGURATION GUIDE

7 Other Add-in Components

7.1 Power Supply Unit

7.1.1 Number of Power Supply Unit
See the table below for the required number of Power Supply Unit per voltage/configuration/redundancy.
Voltage
200V
100V
NOTE:

When selecting Power Supply Unit, recommend to consider potential add-on of the optional products in
the future.

Redundancy can be selectable; no-redundancy, N+1 and 2N:
・N+1: When one Power Supply Unit fails, the operation can continue.
・2N: Configuring 2 power supply groups, each consisting of 1 or 2 power supply unit. When one group
fails, the operation can continue with another group. In this case, power supply is redundant between
PSU#1 and PSU#2, or PSU#3 and #4. Please configure power supply path appropriately.

Hot-plug supported. Can replace Power Supply Unit without stopping the system (under redundant
configuration securing enough power during replacement).
NEC Corporation
–
NEC Express5800/A2040b, A2020b, A2010b, A1040b
Power Supply
Model
Unit
A2040b 1000W
800W
A2020b 1000W
800W
A2010b 1000W
800W
A1040b 1000W
800W
A2040b 1000W
800W
A2020b 1000W
800W
A2010b 1000W
800W
A1040b 1000W
800W
Revision 7.0 – December 2014
Number of Power Supply Unit
# of
CPU
No-redundancy
2/3/4 2
2 2
3/4 3
2 2
2 3
1 2
1 2
1 1
2/3/4 2
1/2 2
3/4 3
2/3 2
4 3
2 2
3/4 3
2 3
2 3
1 2
1 2
1 1
2/3 2
4 3
1/2 2
3/4 3
N+1 2N
3 4
3 4
4 Not available
3 4
4 Not available
3 4
3 4
2 2
3 4
3 4
4 Not available
3 4
4 Not available
3 4
4 Not available
4 Not available
4 Not available
3 4
3 4
2 2
3 4
4 Not available
3 4
4 Not available
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