Which three fragments will complete this statement correctly? In a cluster environment, an ACFS
volume _____________.
A.
will be automatically mounted by a node on reboot by default
B.
must be manually mounted after a node reboot
C.
will be automatically mounted by a node on cluster stack startup if it is included in the ACFS
mount registry
D.
will be automatically mounted by a node if it is defined as a cluster resource when a dependent
cluster resource requires access
E.
will be automatically mounted to all nodes in the cluster when the file system is registered
F.
must be mounted before it can be registered
Explanation:
About the Oracle ACFS Mount Registry
The Oracle ACFS mount registry supports both Oracle Restart and Oracle Grid Infrastructure
cluster configurations. File systems that are to be mounted persistently (across reboots) can be
registered with the Oracle ACFS mount registry. In cluster configurations, registered Oracle ACFS
file systems are automatically mounted by the mount registry, similar to a clusterwide mount table.
However, in Oracle Restart configurations the automatic mounting of registered Oracle ACFS file
systems is not supported. For more information, see“Oracle ACFS and Oracle Restart”.
By default, an Oracle ACFS file system that is inserted into the cluster mount registry is
automatically mounted on all cluster members, including cluster members that are added after the
registry addition. However, the cluster mount registry also accommodates single-node and multi-node (subset of cluster nodes) file system registrations. The mount registry actions for each
cluster member mount only registered file systems that have been designated for mounting on that
member.
The Oracle ACFS registry resource actions are designed to automatically mount a file system only
one time for each Oracle Grid Infrastructure initialization to avoid potential conflicts with
administrative actions to dismount a given file system.
Oracle ACFS Individual File System Resource Management
The Oracle ACFS individual file system resource is supported only for Oracle Grid Infrastructure
cluster configurations; it is not supported for Oracle Restart configurations. See “Oracle ACFS and
Oracle Restart”.
Oracle ASM Configuration Assistant (ASMCA) facilitates the creation of Oracle ACFS individual
file system resources (ora.diskgroup.volume.acfs). During database creation with Database
Configuration Assistant (DBCA), the individual file system resource is included in the dependency
list of its associated disk group so that stopping the disk group also attempts to stop any
dependent Oracle ACFS file systems.
An Oracle ACFS individual file system resource is typically created for use with application
resource dependency lists. For example, if an Oracle ACFS file system is configured for use as an
Oracle Database home, then a resource created for the file system can be included in the
resource dependency list of the Oracle Database application. This dependency causes the file
system and stack to be automatically mounted due to the start action of the database application.
An Oracle ACFS file system that is to be mounted from a dependency action should not be
included in the Oracle ACFS mount registry.
Oracle Automatic Storage Management Administrator’s Guide
11g Release 2 (11.2)
A is right. reboot will get mounted
B is wrong. no need manual
C is right. registered
D is wrong. no need wait for access
E is right. registered
F is wrong. registered, auto mounted
So A.C.E are correct.
A is incorrect:
“In cluster configurations, registered Oracle ACFS
file systems are automatically mounted by the mount registry”
So “by default” they are not mounted, they need to be registered