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Manually triggering metric collection in Oracle Enterprise Manager (GRID control)

Here’s the scenario:

1. You have an Alert that your tablespace is ‘full’,
2. You enlarge the tablespace,
3. The ‘Tablespace Full Alert’ is still in your dashbord for the next 24 (x) hours since you’ve configured this metric to be collected once every 24 (x) hours,
4. You want however to ‘remove’ (clear) this Alert. In order to achive this you will have to to re-evaluate this metric collection …

Here is how you do it (for anything storage related on your database server):

$ emctl control agent runCollection <hostname>:host host_storage

See the Oracle docs, 2.7.6 Reevaluating Metric Collections. It shows you how to retrieve the correct collection name for any metric.

You will find yourself grep-ing through ‘$ORACLE_HOME/sysman/admin/metadata/*xml’ and ‘$ORACLE_HOME/sysman/admin/default_collection/*xml’ …