Datacenters appearing in Snow License Manager showing 0 hosts, 0 licensed applications, 0 virtual machines, and 0 inventoried virtual machines cannot be successfully deleted from the SLM interface. When deleted manually via the SLM interface, they are temporarily removed, but will reappear the following day. 

Snow License Manager

• In our example the minimum number of hosts is already set to 2 so this is not the source of the problem. 
• This can be confirmed by logging into Snow Management and Configuration Console, navigating to Configuration > Basic settings and filtering for host as shown below.

• If this is set to 0 update to the value 2.
• Next, check the data displayed in the SLM web page under Computers > Datacenters and Clusters.
• Locate and click on the Datacenter showing the zero values.
• This will display the DCCID within the URL in the browser status bar as shown below:

• In our example this cluster name did not exist in tblDataCenterClient.
• This can be confirmed by running the following query against the TblDCC table, replacing the DCCID as captured from the browser status bar:

use SnowLicenseManager
select * from tblDCC
where DCCID = '99'

• This determined that the Datacenter records only existed in the tblDCC table but no others in the SLM or INV database.
• Deleting this datacenter from SLM web would not allow enough time for the deletion process to complete this before the DUJ reintroduced the records.

Please raise a case with Support and who will assist in resolving this issue.

The Datacenter had not been deleted from TblDCC when deleting it from the SLM web page.