+The "fuel" section defines several sub-sections required by the Fuel installer:
+
+- jumphost: List of bridge names for each network on the Jumpserver.
+- network: List of device name and bus address info of all the target nodes.
+ The order must be aligned with the order defined in PDF file. Fuel installer relies on the IDF model
+ to setup all node NICs by defining the expected device name and bus address.
+- maas: Defines the target nodes commission timeout and deploy timeout. (optional)
+- reclass: Defines compute parameter tuning, including huge pages, cpu pinning
+ and other DPDK settings. (optional)
+
+The following parameters can be defined in the IDF files under "reclass". Those value will
+overwrite the default configuration values in Fuel repository:
+
+- nova_cpu_pinning: List of CPU cores nova will be pinned to. Currently disabled.
+- compute_hugepages_size: Size of each persistent huge pages. Usual values are '2M' and '1G'.
+- compute_hugepages_count: Total number of persistent huge pages.
+- compute_hugepages_mount: Mount point to use for huge pages.
+- compute_kernel_isolcpu: List of certain CPU cores that are isolated from Linux scheduler.
+- compute_dpdk_driver: Kernel module to provide userspace I/O support.
+- compute_ovs_pmd_cpu_mask: Hexadecimal mask of CPUs to run DPDK Poll-mode drivers.
+- compute_ovs_dpdk_socket_mem: Set of amount huge pages in MB to be used by OVS-DPDK daemon
+ taken for each NUMA node. Set size is equal to NUMA nodes count, elements are divided by comma.
+- compute_ovs_dpdk_lcore_mask: Hexadecimal mask of DPDK lcore parameter used to run DPDK processes.
+- compute_ovs_memory_channels: Number of memory channels to be used.
+- dpdk0_driver: NIC driver to use for physical network interface.
+- dpdk0_n_rxq: Number of RX queues.
+
+
+The full description of the PDF and IDF file structure are available as yaml schemas.
+The schemas are defined as a git submodule in Fuel repository. Input files provided
+to the installer will be validated against the schemas.
+
+- *mcp/scripts/pharos/config/pdf/pod1.schema.yaml*
+- *mcp/scripts/pharos/config/pdf/idf-pod1.schema.yaml*