Omnia can query known switches (by IP and community string) for information on target node MAC IDs. The following parameters need to be populated in input/provision_config.yml to discover target nodes using SNMP.
| Name | Default, Accepted Values | Required? | Additional Information |
|---|---|---|---|
| public_nic | eno2 | required | The NIC/ethernet card that is connected to the public internet. |
| admin_nic | eno1 | required | The NIC/ethernet card that is used for shared LAN over Management (LOM) capability. |
| admin_nic_subnet | 10.5.0.0 | required | The intended subnet for shared LOM capability. Note that since the last 16 bits/2 octets of IPv4 are dynamic, please ensure that the parameter value is set to x.x.0.0. |
| pxe_nic | eno1 | required | This NIC used to obtain routing information. |
| discovery_mechanism | mapping, bmc, snmp | required | Indicates the mechanism through which omnia will discover nodes for provisioning. mapping indicates that the user has provided a valid mapping file path with details regarding MAC ID of the NIC, IP address and hostname. bmc indicates the servers in the cluster will be discovered by Omnia using BMC. The requirement in this case is user should enable IPMI over LAN in iDRAC settings if the iDRACs are in static mode. snmp indicates Omnia will discover the nodes based on the switch IP (to which the cluster servers are connected) provided. SNMP should be enabled on the switch. |
| bmc_nic_subnet | 10.3.0.0 | optional | If provided, Omnia will assign static IPs to IB NICs on the compute nodes within the provided subnet. Note that since the last 16 bits/2 octets of IPv4 are dynamic, please ensure that the parameter value is set to x.x.0.0. When the PXE range and BMC subnet are provided, corresponding NICs will be assigned IPs with the same 3rd and 4th octets. |
| pxe_switch_ip | optional | PXE switch that will be connected to all iDRACs for provisioning. This switch needs to be SNMP-enabled. | |
| pxe_switch_snmp_community_string | public | optional | The SNMP community string used to access statistics, MAC addresses and IPs stored within a router or other device. |
| pxe_subnet | 10.5.0.0 | optional | The pxe subnet details should be provided. This is required only when discovery mechanism is BMC. For mapping and snmp based discovery provide the pxe_nic_start_range and pxe_nic_end_range. |
| ib_nic_subnet | optional | Infiniband IP range used to assign IPv4 addresses. When the PXE range and BMC subnet are provided, corresponding NICs will be assigned IPs with the same 3rd and 4th octets. | |
| node_name | node | required | The intended node name for nodes in the cluster. |
| domain_name | required | DNS domain name to be set for iDRAC. | |
| provision_os | rocky, rhel | required | The operating system image that will be used for provisioning compute nodes in the cluster. |
| provision_os_version | 8.6, 8.0, 8.1, 8.2, 8.3, 8.4, 8.5, 8.7 | required | OS version of provision_os to be installed |
| iso_file_path | /home/RHEL-8.6.0-20220420.3-x86_64-dvd1.iso | required | The path where the user places the ISO image that needs to be provisioned in target nodes. The iso file should be Rocky8-DVD or RHEL-8.x-DVD. iso_file_path should contain provision_os and provision_os_version values in filename. |
| timezone | GMT | required | The timezone that will be set during provisioning of OS. Available timezones are provided in provision/roles/xcat/files/timezone.txt. |
| language | en-US | required | The language that will be set during provisioning of the OS |
| default_lease_time | 86400 | required | Default lease time in seconds that will be used by DHCP. |
| provision_password | required | Password used while deploying OS on bare metal servers. The Length of the password should be at least 8 characters. The password must not contain -,, ',". | |
| postgresdb_password | required | Password used to authenticate into the PostGresDB used by xCAT. Only alphanumeric characters (no special characters) are accepted. | |
| primary_dns | optional | The primary DNS host IP queried to provide Internet access to Compute Node (through DHCP routing) | |
| secondary_dns | optional | The secondary DNS host IP queried to provide Internet access to Compute Node (through DHCP routing) | |
| disk_partition |
|
optional | User defined disk partition applied to remote servers. The disk partition desired_capacity has to be provided in MB. Valid mount_point values accepted for disk partition are /home, /var, /tmp, /usr, swap. Default partition size provided for /boot is 1024MB, /boot/efi is 256MB and the remaining space to / partition. Values are accepted in the form of JSON list such as: , - { mount_point: "/home", desired_capacity: "102400" } |
| mlnx_ofed_path | optional | Absolute path to a local copy of the .iso file containing Mellanox OFED packages. The image can be downloaded from https://network.nvidia.com/products/infiniband-drivers/linux/mlnx_ofed/. Sample value: /root/MLNX_OFED_LINUX-5.8-1.1.2.1-rhel8.6-x86_64.iso |
|
| cuda_toolkit_path | optional | Absolute path to local copy of .rpm file containing CUDA packages. The cuda rpm can be downloaded from https://developer.nvidia.com/cuda-downloads. CUDA will be installed post provisioning without any user intervention. Eg: cuda_toolkit_path: "/root/cuda-repo-rhel8-12-0-local-12.0.0_525.60.13-1.x86_64.rpm" |
Warning
The IP address 192.168.25.x is used for PowerVault Storage communications. Therefore, do not use this IP address for other configurations.
To continue to the next steps: