# Dell EMC PowerEdge Servers
## Update the input parameters
Edit the following files under the `control_plane/input_params` directory to provide the required input parameters.
1. Edit the `login_vars.yml` file to enter the following details:
a. `provision_password`- password used while provisioning OS on bare metal servers.
b. `cobbler_password`- password for Cobbler.
c. `idrac_username` and `idrac_password`- iDRAC username and password.
**NOTE**: Minimum length of the password must be at least eight characters and a maximum of 30 characters. Do not use these characters while entering a password: -, \\, "", and \'
2. Edit the following variables in the `idrac_vars.yml` file.
File name | Variables [Required/ Optional] | Default, choices | Description
------- | ---------------- | ----------------- | -----------------
idrac_vars.yml | idrac_system_profile [Required] |
- **Performance**
- PerformancePerWatt(DAPC)
- PerformancePerWatt(OS)
- WorkstationPerformance
| The system profile used for BIOS configuration.
| firmware_update_required [Required] | | By default, Omnia updates the firmware on the servers. To disable the firmware update, set the variable to "false".
| poweredge_model [Required if "firmware_update_required" is set to "true"] | - **C6420**
- R640
- R740
- C4140
- And other supported PowerEdge servers
| Enter the required PowerEdge server models to update the firmware. For example, enter `R640,R740,C4140` to update firmware on these models of PowerEdge servers. For a complete list of supported PowerEdge servers, see the *Hardware managed by Omnia* section in the Readme file.
| uefi_secure_boot [Optional] | | Option to enable or disable the secure boot mode.
| system_lockdown [Optional] | | Option to enable or disable system lockdown.
| two_factor_authentication [Optional] | | Option to enable or disable the 2FA on iDRAC. If enabled, update the required variables in the `idrac_tools_vars.yml` file. **[WARNING]**: For the other iDRAC playbooks to run, you must manually disable 2FA by setting the *Easy 2FA State* to "Disabled" in the iDRAC settings.
| ldap_directory_services [Optional] | | Option to enable or disable the LDAP directory services on iDRAC. If enabled, update the required variables in the `idrac_tools_vars.yml` file.
## Deploy Omnia Control Plane
Before you provision the Dell EMC PowerEdge Servers, you must complete the deployment of Omnia control plane. Go to Step 8 in the [Steps to install the Omnia Control Plane](../../INSTALL_OMNIA_CONTROL_PLANE.md#steps-to-deploy-the-omnia-control-plane) file to run the `ansible-playbook control_plane.yml` file.