Sundar, There are some very annoying differences between EM Grid Control 10g and 11g. I had the same issues when I upgraded from 10g GC to 11g GC myself. Navigate to the target home page and, under Related Links, click Metric and Policy Settings.Here you will find the Metric Thresholds and Policies tabs where you can edit the thresholds. Assuming you are looking to define thresholds for a Monitoring Template (which could be applied to more than one target at the same time) Click on the Preferences link at the top right of the EM Grid Control ScreenClick on the Monitoring Configuration option in the Left Navigation pane Depending on whether you already have a template or are defining a new one, choose an existing template and hit edit or create a new oneOnce in the monitoring template, you can now define thresholds for the template. Click on the pencil icon at the far right to modify. Hope that helps you do what you were looking for. - Imtiaz Date: Thu, 24 Feb 2011 21:03:27 -0300 Subject: Re: OEM email alert for Tablespace Usage From: cicciuxdba@xxxxxxxxx To: sundarmahadevan82@xxxxxxxxx CC: Oracle-L@xxxxxxxxxxxxx You can either define a template, which affects all the targets of a group or you can define a special value from the Policy link in performance page of the target. (I might have the name wrong, but it was something to do with policies and it was on the performance page in related links if I recall...) hthAlan.- On Thu, Feb 24, 2011 at 6:53 PM, sundar mahadevan <sundarmahadevan82@xxxxxxxxx> wrote: Hi Group, Greetings. I am trying to setup OEM email alert when the tablespace reaches 85% for warning and 95% for critical. I go to preferences -> under Notification -> Rules -> create a rule -> for All targets of type Database Instance -> and the metric is Tablespace Space Used . I do not see any threshold specified (remember seeing thresholds specified). Am I doing it right? My OEM grid is 11.1. Dint get much help from google and metalink. Thanks in advance.