Hi, I think that is the way it should work. I saw that it's not mentioned in the man/doc pages, may be Henrik can include it latter when he's back from he's short and very deserved vacation. In the "hobbit/hobbitd_rrd.c" file, around line 140 (see bellow) is mentioned that in the cases where your removing only a specific test from a host, the RRD will not be automatically deleted because of the difficulty to find the correct associated RRD file. One suggestion (what can be evaluated by Henrik) is to include a "informative text" who'll be displayed when a "@@droptest" and/or "@@renametest" message is received by the hobbitd_rrd worker module, notifying that the RRD file will not me deleted/renamed. Regards Werner =======================