Discover servers automatically by using the server-initiated discovery feature
OpenManage Enterprise allows automatic discovery of servers that have iDRAC firmware version 4.00.00.00 or later. The appliance can be configured to allow these servers to automatically locate the console by querying the DNS and initiate their discovery .
For a server-initiated discovery, the following prerequisites must be met:
This feature is applicable only for servers with iDRAC firmware version 4.00.00.00 or later.
The servers must be on the same domain or subdomain as OpenManage Enterprise.
OpenManage Enterprise must be registered with the DNS to add the configuration information to the DNS by using TUI. It is preferred that the DNS allows automatic updates from OpenManage Enterprise.
Old records of the appliance console on the DNS, if any, should be cleaned up to avoid multiple announcements from the servers.
The following steps are followed for an automatic discovery of servers in OpenManage Enterprise :
Add the configuration information of OpenManage Enterprise on the DNS using one of following methods:
Manually—Add the following four records to your DNS server on the network for which the interface is configured on the appliance. Ensure that you replace all instances of
<domain> or
<subdomain.domain> with the appropriate DNS domain and the system hostname.
By default, the Discovery-Approval policy, in the appliance, is set to Automatic and the servers that establish contact with the console are automatically discovered. To change the settings, see
Manage Console preferences.
Once the appliance is configured as mentioned in the previous steps, the servers can initiate contact with OpenManage Enterprise by querying the DNS. The appliance verifies the servers after ensuring that the client certificate of the servers is signed by the Dell CA.
NOTE If there are any changes in the server IP address or SSL certificate, the server reinitiates contact with OpenManage Enterprise.
The
Monitor > Server Initiated Discovery page lists the servers that establish contact with the console. Also, the servers whose credentials have been added in the console, but which are yet to initiate contact are also listed. The following statuses of the servers based on the previously mentioned conditions are displayed:
Announced—Server initiates contact with the console, however, the credentials of the server are not added to the console.
Credentials Added—The credentials of the server are added in the console, however, the server has not initiated contact with the console.
Ready to Discover—The credentials of the server are added and the server has initiated contact.
NOTE The appliance triggers a Discovery job every 10 minutes to discover all the servers in the 'Ready to Discover' status. However, if the Discovery-Approval policy in the appliance is set as 'Manual,' then the user should manually trigger the Discovery job for each server. For more information, see
Manage Console preferences
Job submitted for Discovery—This status indicates that the discovery job is initiated either automatically or manually for the server.
Discovered—The server is discovered and is listed on the All Devices page.
The following tasks can be performed on the
Monitor > Server Initiated Discovery page:
Import—To import the server credentials:
Click
Import.
In the Import From File wizard, click
Upload Service Tags File to navigate and select the .csv file.
To view a sample CSV file of the server credentials, click
Download sample CSV file.
Click
Finish
Discover—To manually discover the servers in 'Ready to Discover' status:
Select the servers listed on the Server-Initiated Discovery page which are in 'Ready to Discover' Status.
Click
Discover.
A Discover job is triggered to discover the servers and post discovery these servers are listed on the All Devices page.
Delete—To delete the servers listed on the Server-Initiated Discovery page:
Select the servers on the Server-Initiated Discovery page which are already discovered and listed on the All Devices page.
Click
Delete.
The servers are deleted from the Server-Initiated Discovery page.
NOTE Entries corresponding to discovered servers are automatically be purged after 30 days.
Export—To export the server credentials in HTML, CSV, or PDF formats:
Select one or more servers on the Sever-Initiated Discovery page.
Click
Export.
In the Export All wizard, select any of the following file formats: HTML, CSV, and PDF.
Click
Finish. A job is created, and the data is exported to the selected location.
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