Yes, we deprecated configuration template and introduced Configuration Rules. In the Site24x7 web client, please go to Admin > Inventory > Configuration Rules. Click on Add Rule.
Read our help documentation to know how to set up exclusion of disk partitions from monitoring.
Also, please note that even if a disk partition is excluded from monitoring, they will be included when calculating the overall disk utilization value under the respective server monitor's Disks tab. To exclude these disk partitions from existing monitors, run the rule manually once.
Note: If you have been using configuration templates, ensure they are migrated successfully as configuration rules. Refer this section to know how to migrate to rules.
Hope this helps. Let us know for further queries, if any, in the below thread.