Question 1

Which two tools should an administrator use to monitor system performance in real time? (Choose two.)

Accepted Answer

A, D

Explanation: ONTAP System Manager provides a web-based graphical interface with a dashboard that displays real-time performance metrics, including IOPS, latency, and throughput for the cluster. The ONTAP command-line interface (CLI) is a powerful tool for immediate, granular performance analysis. Administrators can use commands like statistics or qos statistics to view detailed, up-to-the-second performance data directly from the storage system's kernel, making it ideal for real-time troubleshooting and monitoring.

Question 2

Which one of the following statements does not apply to the SnapMirror visibility-interval variable?

Accepted Answer

C

Explanation: The visibility-interval is a parameter within a SnapMirror Synchronous (SM-S) policy that controls the creation of common Snapshot copies. These snapshots make the synchronously replicated data consistent and "visible" on the destination volume. The valid range for this interval is 30 seconds to 10 minutes. However, the default value for the visibility-interval is 2 minutes. Therefore, the statement that the default value is 5 minutes is incorrect.

Question 3

Which one of the following statements apply to the Free Space Estimator utility?

Accepted Answer

B

Explanation: The Open Systems SnapVault (OSSV) agent and its associated utilities, including the Free Space Estimator (FSE), run on the primary (source) system. The OSSV agent creates and maintains local metadata files, most notably the block map (.bmap) file, which tracks the data blocks on the source volume. This file can consume a significant amount of disk space on the primary system. The FSE utility's function is to estimate the resources required for a transfer, which includes ensuring there is sufficient local disk space on the primary system to accommodate these essential metadata files before an OSSV transfer can be successfully initiated.

Question 4

The required hardware to add SyncMirror to an existing Clustered Failover system consists of:

Accepted Answer

B

Explanation: Adding SyncMirror to an existing ONTAP cluster requires creating a second, mirrored plex for an aggregate. This new plex must reside on a separate pool of storage. The necessary hardware to accomplish this includes new disk shelves to house the disks for the mirrored plex, the appropriate cabling (e.g., SAS) to connect these shelves to the controller nodes, and potentially new host bus adapters (HBAs) if the existing nodes do not have sufficient available ports to support the additional shelves.

Question 5

What is the maximum distance between a standard clustered pair?

Accepted Answer

D

Explanation: In a standard NetApp ONTAP High-Availability (HA) pair configuration, the two controller nodes must be located within the same data center. The maximum supported distance between these two nodes is 500 meters. This distance allows for physical separation for fault tolerance, such as placement in different fire-containment zones within a single building. This configuration relies on high-speed, low-latency cluster interconnect links, typically using fiber optic cabling and appropriate transceivers to span the distance while maintaining performance for state mirroring and failover operations. Configurations exceeding this distance require a MetroCluster solution.

Question 6

Which is true of the SnapVault backup of NetApp storage system?

Accepted Answer

B

Explanation: SnapVault is a disk-to-disk backup technology that operates at the qtree level. A SnapVault relationship is established between a source qtree on a primary storage system and a destination volume on a secondary system. The backed-up data is stored within a destination qtree on the secondary system. This qtree-based operation allows for granular, policy-based backups of specific data sets within a volume, making the qtree the fundamental unit for SnapVault backup and restore operations.

Question 7

When using a Protection Manager policy to manage Open Systems SnapVault backups on a UNIX server, which three are valid objects to include in the data set? (Choose three.)

Accepted Answer

A, C, D

Explanation: When configuring an Open Systems SnapVault (OSSV) backup policy in Protection Manager for a UNIX client, the dataset defines the source data to be protected. The OSSV agent installed on the UNIX host can identify and back up data at several levels of granularity. This includes specifying individual files, entire directory trees, or a high-level object representing the entire client's designated backup set. These options allow administrators to create flexible and precise backup policies tailored to specific protection requirements, from a single critical file to the whole server.

Question 8

In a synchronous SnapMirror configuration, the source storage appliance exhibits high latency due to
user traffic and rapid data change from SnapMirror transactions. Which one of the following tuning
methods best resolves this performance behavior? Edit the /etc/snapmirror.conf file on the
destination storage appliance and set:

Accepted Answer

A

Explanation: In a synchronous SnapMirror relationship, a write I/O on the source volume is not acknowledged to the client until the data is successfully committed on both the source and destination volumes. High latency on the source is therefore directly influenced by the destination's ability to process and acknowledge these writes. The outstanding parameter, used in snapmirror.conf on older ONTAP systems, limits the number of concurrent transfers in the queue. By setting a lower limit (throttling), it prevents the source from overwhelming the destination with write requests. This allows the destination to maintain lower, more consistent write latency, which in turn reduces the overall latency experienced by the client on the source system.

Question 9

Which NetApp SnapMirror method allows for transparent failover between two AFF clusters with applications using iSCSI LUNs?

Accepted Answer

A

Explanation: SnapMirror Business Continuity (SM-BC) is the specific NetApp technology designed to provide continuous availability and transparent application failover (TAF) for SAN workloads, including iSCSI LUNs. It combines synchronous replication with a mediator service to orchestrate an automatic or manual failover between two AFF clusters. This process is transparent to the application servers, which continue to access their LUNs without interruption or requiring host-side changes, thus ensuring business continuity.

Question 10

The two copies of a SyncMirror volume are called_______. Each______is a physicalcopy of the same file system and consists of one or more RAID groups.

Accepted Answer

A

Explanation: In NetApp ONTAP, SyncMirror technology provides data protection by creating two identical, synchronously updated copies of an aggregate or a traditional volume. These two physical copies are called plexes. Each plex is a complete physical instance of the file system, containing its own set of RAID groups. This configuration ensures that if one plex fails, the other can continue serving data without interruption, providing high availability and disaster recovery.

Question 11

Which SVM type owns cluster LIFs?

Accepted Answer

C

Explanation: Cluster LIFs are used exclusively for communication between the nodes within a cluster over the private cluster interconnect network. These LIFs are essential for system-level operations such as configuration replication and heartbeat messages. In the ONTAP architecture, these fundamental, cluster-wide resources are owned by a special, non-configurable SVM of the system type. This SVM is distinct from admin, data, or node SVMs, which have different roles related to management and data serving.

Question 12

Which are three valid data protection solutions? (Choose three.)

Accepted Answer

A, C, D

Explanation: NetApp ONTAP supports cascading data protection relationships to build flexible and robust solutions. The valid options represent standard, documented topologies: Volume SnapMirror to SnapVault (D): A primary volume is replicated to a SnapMirror destination for disaster recovery (DR). This DR copy then serves as the source for a SnapVault backup. This is a "mirror-to-vault" cascade, often used to offload backup operations to the DR site. SnapVault to Volume SnapMirror (A): A primary volume is backed up to a SnapVault destination for long-term retention. This SnapVault destination is then replicated to a SnapMirror destination, creating a DR copy of the backup data. This is a "vault-to-mirror" cascade. SnapVault to Volume SnapMirror to Volume SnapMirror (C): This extends the "vault-to-mirror" topology by adding another SnapMirror relationship, creating a tertiary copy for further disaster recovery resilience (e.g., Backup -> DR1 -> DR2).

Question 13

Which statement describes the results of the snapmirror resync command?

Accepted Answer

A

Explanation: The snapmirror resync command is used to repair a broken SnapMirror relationship. The command's function is to identify the most recent Snapshot copy that exists on both the source and destination volumes. It then reverts the destination volume to the state of this common Snapshot, effectively discarding any divergent data written to the destination since that snapshot was created. After this rollback, it proceeds to transfer only the incremental changes from the source that have occurred since the common snapshot, thereby re-establishing the mirror. This process is initiated on the destination cluster.

Question 14

Protection Manager is an optional component of the Operations Manager that can be licensed and accessed from the NetApp Management Console (NMC).

Accepted Answer

TRUE

Explanation: The statement is correct. Protection Manager was a component of the NetApp OnCommand management suite, which also included Operations Manager. It was designed to automate and manage data protection policies (like SnapMirror and SnapVault). Its functionality was unlocked via a specific license and was not available in the base installation of Operations Manager. Both Operations Manager and the licensed Protection Manager capabilities were accessed and managed through a common client interface, the NetApp Management Console (NMC).

Question 15

The snapvault update command is only available on the secondary system.

Accepted Answer

TRUE

Explanation: The snapvault update command, or its modern equivalent snapmirror update for SnapVault (XDP) relationships, is used to initiate a manual data transfer from the source (primary) system to the destination (secondary) system. This process is a "pull" operation, meaning the command must be executed from the CLI of the destination cluster or SVM. The secondary system contacts the primary system to pull the incremental changes captured in new Snapshot copies. Therefore, the command to perform the update is only available on the secondary system.

Free NetApp NS0-163 Actual Exam Questions