This screen shot shows a portion of the View All Properties Page. This page shows the following under the heading View All Properties: orcl.us.oracle.com:
Up Since: Feb 3, 2007 1:57:53 AM PST
Availability (%): 100 (Last 24 hours)
Instance Name: orcl
Read Only: No
Oracle Home: /u01/app/oracle/product/11.1.0/db_1 with an exclamation icon at the end.