If you need to replace an existing host with a new one (due to malfunctioning or misconfiguration on the old host), you can use the "replace" function to do so. You can replace virtual and physical hosts. The “replace” function supports zero-touch provisioning through the Cloud Services Portal.
Note
To ensure that all the services moved from the old host operate properly on the new host, you must select a new host that can support all the services currently running on the existing host. Otherwise, certain services might not function properly on the new host. For example, if you replace an existing host running the Data Connector service with a new host that does not support the Data Connector service, the service will not be operational on the new host.
To replace an existing host, you first set up the new host and connect it to the Cloud Services Portal through zero-touch provisioning. Ensure that the new host is in the Online state and that there are no active services enabled on the new host. The replace function will automatically remove the services and configuration from the old host and move them to the new host without the need for manual configuration.
The following table lists the respective states of the hosts before, during, and after the replace operation.
| Replace Operation | Old Host State | New Host State |
|---|---|---|
| Before operation | Online (with services running): This state is applicable only to hosts that are already online. Offline: This state is applicable to misconfigured or corrupted hosts. | Online (without services running) |
| During operation | Pending > Awaiting Approval | Offline |
| After operation | Awaiting Approval Note: The host stays in the Awaiting Approval state and no action is required. | Online (with services running) |
To replace a host, complete the following:
- From the Cloud Services Portal, click Manage > Infrastructure > Hosts.
- Select the the host you want to replace.
- Click ... next to the host > Replace.
In the replace host widget, select the new host from the Replacement Host list, and then click Save & Close.
A confirmation message is displayed. Click Confirm to replace the existing host with the new host, or click Cancel to cancel the operation.
Note
- Once you confirm the operation, the old host goes into the Pending state and thereafter goes into the Awaiting Approval state.
- It might take a few seconds for the replace operation to complete and all the services on the new host to go online.
- All the configurations on the new host will be overwritten by the services and configuration moved from the existing host.