How to delete graphs whose template is "GRID - Job Groups - Graphs"

Resolving The Problem

You can follow the procedure below to remove the graphs and disable the graphs generation again.

1. Disable the graph in the template:

In In Console->Templates->Host Templates->Grid Summary->Associated Data Queries->GRID - Job Groups - Graphs, in the right side of the line, you can find a "X" mark.

Click it to remove the GRID - Job Groups - Graphs from the template. Save the change by click the Save button.

2. Disable the graph generation in the clusters.

In the Console->Management->Devices, In the Type field, select "Grid Summary". And the tab will show all the cluster summary in the "Showing Rows" tab(The item # is same with your # of clusters).

You can click one by one of the _Summary items in the "Showing Rows " tab and execute the following:

2.1 remove the GRID - Job Groups - Graphs in Associated Data Queries tab and 
2.2 Save the change by click the Save button.

3. Clean the graphs with the remove_graphs.php under /opt/IBM/cacti/util/support/rtm_tool/scripts(/opt/IBM/cacti/ is the RTM home directory).