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...) hth Alan.- 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. >