Dell EMC PowerEdge R940 Installation And Service Manual page 56

If you do not type the correct password in three attempts, the system displays the following message:
Invalid Password! Number of unsuccessful password attempts: <x> System Halted! Must power down.
Password Invalid. Number of unsuccessful password attempts: <x> Maximum number of password
attempts exceeded.System halted.
Even after you turn off and restart the system, the error message is displayed until the correct password is typed. The following options are
exceptions:
• If System Password is not set to Enabled and is not locked through the Password Status option, you can assign a system password.
For more information, see the System Security Settings screen section.
• You cannot disable or change an existing system password.
NOTE: You can use the password status option with the setup password option to protect the system password from
unauthorized changes.
Redundant OS Control
You can use the Redundant OS Control screen to set the redundant OS info for redundant OS control. It enables you to set up a physical
recovery disk on your system.
Viewing Redundant OS Control
To view the Redundant OS Control screen, perform the following steps:
1 Turn on, or restart your system.
2 Press F2 immediately after you see the following message:
F2 = System Setup
NOTE: If your operating system begins to load before you press F2, wait for the system to finish booting, and then
restart your system and try again.
3 On the System Setup Main Menu screen, click System BIOS.
4 On the System BIOS screen, click Redundant OS Control.
Redundant OS Control screen details
The Redundant OS Control screen details are explained as follows:
Option Description
Redundant OS Enables you to select a backup disk from the following devices:
Location
•
•
•
•
•
Redundant OS
State
When set to Visible, the backup disk is visible to the boot list and OS. When set to Hidden, the backup disk is
disabled and is not visible to the boot list and OS. This option is set to Visible by default.
56 Pre-operating system management applications
None
IDSDM
SATA Ports in AHCI mode
BOSS PCIe Cards (Internal M.2 Drives)
Internal USB
NOTE: RAID configurations and NVMe cards not are included as BIOS does not have the ability to
distinguish between individual drives in those configurations.
NOTE: This option is disabled if Redundant OS Location is set to None.