The physical configuration specifications of the ESXi host list the characteristics of the ESXi hosts, and can be used during deployment and testing as per VMware best practices. The configuration and assembly process for each system is standardized, with all of the components installed in the same manner on each ESXi host. Standardizing the entire physical configuration of the ESXi hosts is critical to providing an easily manageable and supportable infrastructure because standardization eliminates variability. You can deploy ESXi hosts with identical configuration, including identical storage, and networking configurations, across all cluster members. For example, consistent PCI card slot placement, especially for network controllers, is essential for the accurate alignment of physical to virtual I/O resources. Identical configurations ensure an even balance of VM storage components across storage and compute resources. The following are the recommendations that we've mentioned, along with their priorities.