The new version 6 of spotlight on Oracle returns no values in the Archive log Panel
For Oracle 10g and later where archiving is implemented partly or totally within ASM (Automatic Storage Management) or the Flashback Recovery area,
the metrics displayed in the Archive Log area include ASM or Flashback values only. Filesystem metrics are ignored.
When Flashback is enabled and ASM is used for archiving, a negative value for the Free min metric indicates that the ASM diskgroup does not have
enough space to cope with a disk failure.