R620 Server Goes into Sleep Mode When Primary Power Supply Fails

With two Power Supplies being available, the server still goes into sleep mode when the primary power supply fails.

The time lag for the second power supply to cut in puts the server into sleep or shutdown mode.

• Check the LEDs on both power supply to confirm they are green.
  This article explains the state of Power Supplies LED.
• Confirm that the fans are spinning in both power supplies.
• Disable Redundancy and Hot spare from the iDRAC interface, in the PSU section.

To configure the power supply options:

In the iDRAC Web interface, go to Overview > Server > Power/Thermal > Power Configuration > Power Configuration.
The Power Configuration page is displayed.
Under Power Supply Options, select the required options.
Click Apply. The power supply options are configured.