問題文
Backups of a three-node Oracle RAC database sometimes fail during the step that resynchronizes the recovery catalog. The DBA finds that the snapshot control file is configured under a directory that exists on only one node. What does the requirement say?
選択肢
- The snapshot control file has to sit on local storage of each of the nodes, because the file is written once for each instance and the separate copies would otherwise overwrite one another.
- The snapshot control file has to sit in the fast recovery area, because the recovery catalog reads the file from there during a resynchronization.
- The snapshot control file has to sit in a location that every node performing backups can reach, because the configured name applies to every instance of the cluster database.
- The snapshot control file has to sit on the node that owns the recovery catalog, because that node is the one that writes the file whenever a resynchronization of the catalog is carried out.