Power Supply (Exp288A); Cold Redundant Feature; Installing A Redundant Power Supply - NEC N8100-2189F User Manual

Chapter 2 Preparations
1.15

Power Supply (EXP288A)

Non-redundant power supply or redundant power supply can be installed into Express5800/T110g-E
(EXP288A). Using two redundant power supplies enables the system to continue processing even if one power
supply fails.
1.15.1

Cold redundant feature

Cold redundant provides the following features by using redundant power supply.

Cold redundant can run the system with optimum power efficiency by raising operating efficiency of
primary power supply and lowering that of redundant power supply.

If the power efficiency of power supplies is not optimized due to system configuration, this feature is
disabled automatically.
Cold redundant feature can be used under the following conditions:

Two power supplies must be installed for redundant configuration.

Change the parameter as shown below.
Server  Power Control Configuration  Cold Redundant Mode  Enabled
See Chapter 3 (2. System BIOS Setup) for details.
Run SETUP after restarting, and check if the status of Cold Redundant Mode shows Enabled.
1.15.2

Installing a redundant power supply

Install a redundant power supply by using the following procedure.
1. Remove the blank cover from the server.
Important
Keep the removed blank cover for future use.
Express5800/T110g-E User's Guide
1. Installing Internal Optional Devices
95