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 SDDC Manager 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, re-image the host.
- When creating a VI workload domain using the SDDC Manager UI, all hosts in a cluster must be associated with the same network pool. You can use the Cloud Foundation API to select hosts from different network pools, as long as those network pools have the same VLAN ID and MTU settings.
Procedure
- Select the hosts for creating the VI workload domain.
- Click Next.
