The Host Selection page displays available hosts along with hosts details. Hosts that are powered off, cannot be accessed via SSH, or have not been properly commissioned are not displayed.
- Select only healthy hosts.
To check a host's health, SSH in to the SDDC Manager VM using the vcf administrative user account and type the following command:
sudo /opt/vmware/sddc-support/sos --health-check
When prompted, enter the vcf user password. For more information, see Supportability and Serviceability (SoS) Utility - For optimum performance, you must select hosts that are identical in terms of memory, CPU types, and disks.
If you select unbalanced hosts, the UI displays a warning message, but you can proceed with the workload domain creation.
- You cannot select hosts that are in a dirty state. A host is in a dirty state when it has been removed from a cluster in a workload domain.
To clean a dirty host, see Clean up a Decommissioned Host Using the Direct Console User Interface.
- All selected hosts must be associated with the same network pool.
Note: The Cloud Foundation API supports adding hosts from different network pools to NSX-T workload domains, as long as those network pools have the same VLAN ID and MTU settings.
