NetApp NS0-528 Exam Questions
Questions for the NS0-528 were updated on : Dec 01 ,2025
Page 1 out of 5. Viewing questions 1-15 out of 64
Question 1
You have set up SnapMirror relationships between two clusters. SnapMirror shows as unhealthy and
fails with the following error:
Reason: 'Transfer failed'. Last Transfer Error Was 'The number of Snapshot copies on destination
volume "volume_name" has reached the maximum supported count of <count_set_by_policy>.
When you check the EMS logs, you notice the following:
[NetAppProdVault-01: worker_thread_342: sm.xfer.fail.maxlim.snap:alert]: The number of Snapshot
copies on destination volume 'SVM_filer02:vflsystems_sm_4' of the relationship with relationship
UUID 'ala620fc-a870-lle9-94ef-00a09893ee91' and policy 'filer02_vault_daily_policy' has reached the
maximum supported.
[NetAppProdVault-01: sm_logger_main: smc.snapmir.update.fail:error]: Snapmirror update from
source volume 'vol1' to destination volume 'vol2' failed with error 'The number of Snapshot copies
on destination volume "vol2" has reached the maximum supported count of
<count_set_by_policy>.'. Relationship UUID 'ala620fc-a870-lle9-94ef-00a09893ee91'.
What is the cause of this situation, and how can you avoid this in the future? (Choose two.)
- A. Modify the SnapMirror policy's -keep parameter.
- B. The SnapMirror relationship has reached its maximum number of snapshots, which is 1019.
- C. Modify the SnapMirror policy's -snapmirror-label parameter.
- D. The SnapMirror relationship has reached its maximum number of snapshots, which is 255.
Answer:
A, D
Explanation:
The SnapMirror destination volume has hit the maximum allowed number of Snapshot copies, which
is typically 255 for most ONTAP systems. This causes transfers to fail with a "Snapshot copy limit
reached" error.
To avoid this issue in the future:
● Adjust the -keep parameter in the SnapMirror policy to control how many Snapshot copies are
retained.
● Implement a retention policy that matches your schedule and storage capacity.
Question 2
A customer needs a monthly report with security recommendations from multiple NetApp ONTAP
clusters.
Which NetApp option enables the customer to schedule a security report?
- A. Active IQ Unified Manager
- B. SANtricity
- C. Active IQ OneCollect
- D. ONTAP System Manager
Answer:
A
Explanation:
Active IQ Unified Manager allows customers to schedule monthly security reports across multiple
ONTAP clusters. These reports include security posture, compliance status, and actionable
recommendations, making it the correct tool for centralized security monitoring and reporting.
Question 3
An administrator performed a SnapMirror failover and tailback of several individual volumes from
production and DR. After fallback to production, there are orphaned Snapshot copies, and the
SnapMirror relationship from the DR to production is still in place from the prior fallback procedure.
Which snapmirror command cleans up the relationships and Snapshot copies?
- A. release
- B. resync
- C. break
- D. quiesce
Answer:
A
Explanation:
The snapmirror release command is used to remove SnapMirror relationships from the source
cluster's perspective and delete orphaned Snapshot copies that were created for the SnapMirror
relationship. This is the correct cleanup step after failback and ensures no leftover replication
metadata remains.
Question 4
You are at a customer site and assisting with testing a sudden site disaster scenario with their
MetroCluster solution. All the equipment at the production site is suddenly powered off, and the
command metrocluster switchover -forced-on-disaster true is issued. After the switchover to the
disaster site is complete, the customer notices that one of their database applications is offline. All
other data is accessible from the disaster site. You notice the following in the volume show output:
What can you do to help bring the application online while in switchover?
- A. Advise the customer to reboot their application server.
- B. Increase the available space using the volume size command.
- C. Modify the -in-nvfailed-state option using the volume modify command.
- D. Reboot the NetApp nodes with the -ignore-strict-sync-warnings true option.
Answer:
C
Explanation:
The in-nvfailed-state: true indicates that the volume is in Nonvolatile RAM (NVRAM) failed state,
which happens when write operations could not be committed properly during a disaster event. This
causes the volume to go into a read-only protected mode to avoid data corruption.
To restore access, you must manually override this state with:
volume modify -vserver SVM1-mc -volume APP02_DB -in-nvfailed-state false
This will bring the volume out of failed state and allow the database application to function again
during the switchover.
Question 5
Your customer replicates between two on-premises NetApp ONTAP clusters with an hourly schedule.
Two days ago they made network changes, and nobody checked the ONTAP clusters. Today they
notice a SnapMirror replication lag time of two days. To avoid this happening again, they want to
receive an email alert if the replication lag time will be more than 1.5 hours.
Which NetApp tool can send a lag threshold alert?
- A. Active IQ Config Advisor
- B. Active IQ OneCollect
- C. ONTAP System Manager
- D. Active IQ Unified Manager
Answer:
D
Explanation:
Active IQ Unified Manager can monitor SnapMirror relationships and generate email alerts based on
lag threshold policies. You can configure it to trigger an alert when the replication lag exceeds 1.5
hours, helping prevent unnoticed replication issues.
Question 6
One of the storage administrators accidently deleted a volume that is being used for a 1TB CIFS
share. They acknowledged that the operation was done 8 hours ago. You need to recover this data as
soon as possible.
Which step will restore the volume in under a minute?
- A. Restore the data from S3 bucket
- B. Restore the volume from ONTAP System Manager.
- C. Restore the data from NDMP backup.
- D. Restore files from a Windows client recycling bin.
Answer:
B
Explanation:
If the volume was deleted within the retention window (by default, 12 hours), ONTAP allows you to
quickly restore the deleted volume directly from System Manager, as it is still in the volume recovery
queue. This process typically takes less than a minute and is the fastest recovery option in this
scenario.
Question 7
What NetApp tool helps you with the configuration for the cluster switches, when you are expanding
an existing 4-node MetroCluster IP setup?
- A. Active IQ Config Advisor
- B. Interoperability Matrix Tool
- C. RCF generator
- D. Active IQ Upgrade Advisor
Answer:
C
Explanation:
The RCF (Reference Configuration File) generator is the NetApp tool used to create the appropriate
switch configuration files for MetroCluster IP setups. When expanding a MetroCluster IP
configuration (e.g., from 4 nodes to more), you use the RCF generator to ensure the cluster and
interconnect switches are properly configured.
Question 8
You are testing a MetroCluster disaster recovery scenario for your customer, and you get an error
messaging stating that the test failed.
Which command should you use to view detailed error information?
- A. metrocluster interconnect mirror show
- B. metrocluster operation show
- C. metrocluster show
- D. metrocluster check config-replication show
Answer:
B
Explanation:
The metrocluster operation show command provides detailed status and error information about
MetroCluster operations, including switchover, switchback, and testing activities. It's the correct
command to diagnose a failed disaster recovery test.
Question 9
Your customer is running NAS & SAN workloads on an old two node ONTAP Cluster, which reached
end of support. As their business is growing, they need a new solution which can provide continuous
availability and an automatic switchover for all of his workloads. They already have two data centres
that are about 400km apart.
Which solution meets this requirement?
- A. MetroCluster IP
- B. MetroCluster FC
- C. SnapMirror SVM replication
- D. SnapMirror active sync
Answer:
A
Explanation:
MetroCluster IP is the ideal solution for continuous availability and automatic switchover of both
NAS and SAN workloads across geographically separated data centers (up to 700 km apart). It
provides synchronous replication with automatic disaster recovery capabilities, making it the best fit
for this scenario.
Question 10
A company is using SnapMirror SVM replication, with identity preserve set to false to protect an
SMB-only dataset in case of a disaster.
What needs to be manually configured to allow SMB to have access to the data on the destination?
- A. SMB server
- B. home directories
- C. SMB shares
- D. name mappings
Answer:
C
Explanation:
When SnapMirror SVM replication is configured with identity-preserve=false, network and protocol
configurations (like SMB shares) are not replicated. Therefore, to allow SMB access on the
destination SVM, you must manually create SMB shares on the destination after replication is
initialized.
Question 11
You need to protect an entire SVM and all of its data volumes and have decided to use SnapMirror
SVM. The DR cluster uses a different subnet from the production cluster, and the destination SVM has
the added requirement of also being online and serving data as read-only.
What option would you set to achieve both goals?
- A. Set the -type option to automated-failover in the applied snapmirror policy.
- B. Use the -identity-preserve option set to false in the snapmirror create command.
- C. Set the -discard-configs option to network in the applied snapmirror policy.
- D. Use the -identity-preserve option set to true in the snapmirror create command.
Answer:
B
Explanation:
Setting -identity-preserve false allows the destination SVM to have a different network configuration,
which is required since the DR site uses a different subnet. It also enables the destination SVM to be
online and serve data in read-only mode, which meets the requirement for data availability during
normal operation without promoting the SVM.
Question 12
You are working with a customer with two NetApp clusters, one AFF A800 cluster and one AFF A900
cluster, in different locations. The customer has a SAN application that spans multiple volumes,
which needs protection in the event of a disaster with automatic failover. The customer requires zero
RPO and near-zero RTO for this application.
Which two steps should you take to implement this solution? (Choose two.)
- A. Install NetApp ONTAP Mediator service at a third site.
- B. Set up and initialize a SnapMirror active sync relationship.
- C. Implement a MetroCluster IP configuration.
- D. Set up and initialize a SnapMirror Asynchronous relationship.
Answer:
A, B
Explanation:
To achieve zero RPO and near-zero RTO for SAN applications across two NetApp clusters in different
locations, you must:
● Use SnapMirror active sync, which provides active-active synchronous replication.
● Deploy the ONTAP Mediator at a third site to monitor and coordinate automatic failover during
disaster events.
Question 13
Your customer wants to replicate an SVM containing NAS data from NetApp ONTAP Cluster01 to two
different ONTAP systems, Сluster02 and Сluster03. In the event of a disaster, at least one of the
destination clusters must be able to serve data from the destination SVM.
Which two configurations are supported in a SnapMirror SVM replication? (Choose two.)
- A. Cluster01 -> Cluster02 with -identity-preserve true
- B. Cluster02 -> Cluster03 with -identity-preserve true
- C. Cluster01 -> Cluster03 with -identity-preserve false
- D. Cluster02 -> Cluster03 with -identity-preserve false
Answer:
A, C
Explanation:
**-identity-preserve true** replicates the full identity and configuration of the source SVM, and the
destination SVM remains offline until a failover. This is ideal for disaster recovery.
**-identity-preserve false** allows the destination SVM to be online, typically in read-only mode,
which supports access during normal operation (e.g., for testing or additional DR flexibility).
Both configurations support SVM replication, fulfilling the requirement that at least one destination
can serve data in the event of a disaster.
Question 14
You have two sites running NetApp ONTAP 9.14.1 clusters that have databases connecting through FC
that have a near-zero RTO requirement.
What NetApp solution would allow a failover between the sites with a near-zero RTO?
- A. BlueXP
- B. SnapMirror SVM
- C. SVM data mobility
- D. SnapMirror active sync
Answer:
D
Explanation:
SnapMirror active sync provides active-active synchronous replication for SAN workloads (including
FC-attached databases), ensuring zero RPO and near-zero RTO. It enables automatic failover and
failback between sites, making it the ideal solution for mission-critical applications requiring
continuous availability.
Question 15
You have production WORM data that is locked by SnapLock Compliance with a 14-year retention.
You need to protect the compliance data against hardware failures and site-level disasters.
Which three NetApp products would you use to preserve the compliance metadata? (Choose three.)
- A. SnapMirror Asynchronous
- B. NDMP backups
- C. SnapMirror SVM
- D. BlueXP copy and sync
- E. MetroCluster
Answer:
A, C, E
Explanation:
To protect SnapLock Compliance WORM data with long-term retention (14 years) against hardware
and site-level failures, you must use NetApp solutions that preserve both the data and its compliance
metadata:
● SnapMirror Asynchronous supports replication of SnapLock volumes, preserving WORM and
compliance metadata.
● SnapMirror SVM replicates the entire SVM, including configuration and compliance settings.
● MetroCluster provides synchronous replication and automatic site failover with full preservation
of SnapLock compliance attributes.