You must start up the system components of the system in a strict order to avoid data loss and faults in the components.

Prerequisites

  • Verify that you have direct console access to the switches and ESXi hosts in the system.

  • Verify that you have the host names and IP addresses of the ESXI hosts that are members of the management domain.

    You can obtain this information in the Domain Details pages in the SDDC Manager Dashboard.

  • Verify that you have the host names and IP addresses of the ESXi hosts that are members of each VI and VDI workload domain.

    You can obtain this information in the Domain Details pages in the SDDC Manager Dashboard.

  • See Knowledge Base article 2142676 Shutting down and powering on a vSAN 6.x Cluster when vCenter Server is running on top of vSAN for information about starting up hosts and exiting maintenance mode.

Procedure

  1. Power on the switches in the following order.
    1. Inter-rack switches
    2. ToR switches
    3. Management switches
  2. From the console of each switch, verify that the switches are online.
  3. Power on each ESXi host in the management domain, and exit maintenance mode.
    1. Use SSH to connect and log in to the ESXi console.
    2. Use the following CLI command to exit maintenance mode.
      # esxcli system maintenanceMode set -e false
    3. Perform the above steps on each ESXi host until none are in maintenance mode.
  4. Power on each ESXi host in the first VI workload domain, and exit maintenance mode.
    1. Use SSH to connect and log in to the ESXi console.
    2. Use the following CLI command to exit maintenance mode.
      # esxcli system maintenanceMode set -e false
    3. Perform the above steps on each ESXi host in the VI workload domain until none are in maintenance mode.
    4. Repeat the above steps for each VI workload domain.
  5. Power on the infrastructure management VMs in the management domain.
    Important:

    You must power on the VMs using the ESXi host client on each management ESXi host.

    Important:

    You must wait until each VM is powered on and all it services started before powering on the next VM.

    Power on the VMs in the following order:

    • SDDC Manager Utility VM.

    • Platform Services Controller virtual appliances.

    • vCenter Server for the management domain.

    • SDDC Manager Controller VM.

    • NSX Manager virtual appliance for the management domain.

    • NSX Controller cluster virtual appliances for the management domain.

    • NSX Edge Service Gateway virtual appliances.

    • vCenter Server for each VI workload domain.

    • NSX Manager virtual appliance for each VI workload domain.

    If you also have VDI workload domains, power on the VDI workload domain vCenter Server and NSX Manager virtual appliances, then the Horizon and AppVolumes VMs.

  6. Log in to the SDDC Manager Dashboard to verify that it displays correctly.
    1. On the SDDC Manager Dashboard, navigate to the management domain.
    2. In the domain details panel, click the launch for the vCenter Server instance.

      A new browser tab opens and displays the vSphere Web Client.

  7. Power on the vRealize Automation virtual appliance and IaaS components in the management domain.
    Important:

    You must wait until each VM or virtual appliance is powered on and all of its services started before running on the next VM.

    Power on the VMs in the following order:

    • The vRealize Automation IaaS SQL Server VM.

    • All vRealize Automation virtual appliances.

    • All vRealize Automation IaaS Web Server VMs.

      Note:

      Power on the primary IaaS Web Server VM first.

    • All vRealize Automation IaaS Manager Services.

      Note:

      Power on the primary IaaS Manager Server VM first.

    • All vRealize Automation IaaS proxy agents.

    • All vRealize Automation IaaS Distributed Execution Management (DEM) hosts.

  8. Power on the vRealize Operations Manager virtual appliances in the management domain.
    Important:

    You must wait until each VM or virtual appliance is powered on and all of its services running before powering on the next VM.

    Power on the VMs in the following order:

    • The vRealize Operations Manager master node.

    • The vRealize Operations Manager master replica node.

    • All vRealize Operations Manager data nodes.

    • All vRealize Operations Manager remote collector nodes.

  9. Power on the vRealize Log Insight virtual appliances in the management domain.
    Important:

    You must wait until each VM or virtual appliance is powered on and all of its services running before powering on the next VM.

    Power on the VMs in the following order:

    • The vRealize Log Insight master node.

    • All vRealize Log Insight worker nodes.

  10. Power on the VMs in the first VI workload domain.
    Important:

    Each workload domain includes a three-node NSX Controller cluster. Power on these VMs first.

    1. On the SDDC Manager Dashboard, navigate to the management domain.
    2. In the domain details panel, click the launch for the vCenter Server instance.

      A new browser tab opens and displays the vSphere Web Client.

    3. In the vSphere Web Client, power on the VMs in the following order:
      • The three-node NSX Controller cluster.

      • The workload domain VMs.

    4. Repeat this procedure on each VI workload domain.

    If you also have VDI workload domains, power on the VMs in the same order. Log in to the Horizon View Administrator to verify operations.

  11. Using SSH, log in as root to the SDDC Manager Controller VM and run the ./sos --health-check command to verify that everything works correctly.