Dell EMC XC640 Series Installation And Service Manual page 51

4. On the System BIOS screen, click Redundant OS Control.
Redundant OS Control screen details
About this task
NOTE: The XC Series Appliance and XC Core System does not support the NVDIMM-N, RAID, or UEFI settings.
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
● None
● IDSDM (Internal SD card)
● SATA Ports in AHCI mode
● BOSS PCIe Cards (Internal M.2 Drives)
● Internal USB
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.
Redundant OS
Boot
When set to Enabled, BIOS boots to the device specified in Redundant OS Location. When set to
Disabled, BIOS preserves the current boot list settings. This option is set to Enabled by default.
Miscellaneous Settings
You can use the Miscellaneous Settings screen to perform specific functions such as updating the asset tag and changing the
system date and time.
Viewing Miscellaneous Settings
To view the Miscellaneous Settings screen, perform the following steps:
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 Miscellaneous Settings.
NOTE: RAID configurations and NVMe cards are not 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.
NOTE: BIOS disables the device in hardware, so it cannot be accessed by the OS.
NOTE: This option is disabled if Redundant OS Location is set to None or if Redundant OS State
is set to Hidden.
Pre-operating system management applications 51