NS0-528 Implementation Engineer - Data Protection Exam Questions and Answers

Setting-commitment tryon thevolume snapshot autodelete modifycommand allows ONTAP to automatically delete eligible Snapshot copies when a volume is running low on space, but only if it can do so without violating SnapMirror or retention policies. This ensures volumes in SnapMirror relationships stay healthy and do not run out of space unexpectedly.

To achieve granular control over SnapLock Compliance behavior:

1. Set the default retention period to "unspecified", so files are not automatically locked.

2. Disable autocommit and instead manually commit only the specific files that should be locked, allowing precise control over what is protected and when retention starts.

Creating a FlexClone from a pre-patch Snapshot is the quickest, space-efficient method to restore a single VM without affecting others in the datastore. It enables immediate access to the VM’s previous state without a full restore or rollback of the entire volume.

Although the SnapMirror policy includes rules for retaining Snapshot copies, the ability to make them tamper-proof (i.e., locked) depends on enabling snapshot locking on the destination volume. You must explicitly run:

volume modify -volume -snapshot-locking-enabled true

Without this setting, SnapMirror-created Snapshot copies can still be deleted manually. Enabling snapshot-locking ensures that retention rules (like the 5-day daily rule in your policy) are enforced and Snapshots are immutable.

NetApp ONTAP supports two types of Compliance Clocks for write once, read many (WORM) and SnapLock compliance:

The system Compliance Clock is maintained at the cluster level and ensures tamperproof retention.

The volume Compliance Clock is specific to SnapLock volumes and is used to enforce retention periods at the volume level.

To use tamper-proof Snapshot copies (e.g., SnapLock-based WORM Snapshots):

● The Compliance Clock must be initialized to enforce retention periods that cannot be bypassed.

● A NetApp ONTAP One license includes the SnapLock feature, which enables tamper-proof snapshot functionality.

When using the-quick-resync trueoption in SnapMirror, storage efficiencies such as deduplication and compression are not preserved on the original source during resync. This means that efficiencies will be lost on the source volume, and data will be rehydrated to its full form during transfer.

To separate traffic for different cluster peering relationships on the same cluster (Cluster1), you need to configure IPspaces. IPspaces allow multiple logical network domains within a single ONTAP cluster, ensuring that peering traffic to Cluster2 and Cluster3 remains isolated.

Themetrocluster operation showcommand 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.

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.

SnapMirror replication is driven by labels that match between the snapshot policy on the source volume and the SnapMirror policy. If the snapshot policy on the source does not include the correct SnapMirror label, SnapMirror will not recognize which snapshots to replicate, resulting in no transfers.

Before using SnapMirror active sync, the NetApp ONTAP Mediator must be registered and added to the cluster. This is done directly through the ONTAP System Manager, which provides a guided interface to configure and verify the Mediator service integration required for automatic failover.

FlexClone volumes are space-efficient on the source cluster because they share blocks with the parent. However, SnapMirror transfers them as full physical copies by default unless you re-create them as FlexClone volumes on the DR site.

Enabling FlexClone copies on the destination will preserve their space efficiency and minimize disk usage on the DR cluster.

When multi-admin approval (MAA) is enabled in ONTAP, it cannot be disabled by a single administrator through standard commands or GUI actions to maintain security integrity. To disable MAA without the required approvals, you must open a NetApp support case to request assistance.

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.

When multiple databases are stored on the same LUN and a single database needs to be restored using SnapMirror active sync, the restore process must target the specific byte range corresponding to that database. This requires the starting byte offset and the ending byte offset.

These define the exact data region on the LUN to be restored without affecting the other databases.