NetApp NS0-077 Exam Dumps

For a capacity-focused FabricPool repository containing predominantly cold object data, the most efficient expansion method is to add a data-only Storage Node. StorageGRID 12.0 supports combined, metadata-only, and data-only Storage Nodes. A data-only node is dedicated to object-data storage and does not participate in Cassandra metadata storage, making it particularly appropriate when the primary objective is to maximize usable object capacity rather than increase metadata capacity. NetApp specifically describes data-only, high-capacity Storage Nodes as appropriate when dedicated capacity is required.

After the node is added, erasure-coded data can be rebalanced so that existing EC fragments are redistributed across the original and newly added Storage Nodes. NetApp states that EC rebalancing redistributes erasure-coded fragments among Storage Nodes at the site, allowing newly added capacity to be utilized by an existing EC protection scheme.

Option D adds usable capacity, but a combined node also provides metadata/Cassandra functionality that is unnecessary when the goal is specifically to maximize object-data capacity for a cold FabricPool workload. Options B and C are not supported StorageGRID capacity-expansion strategies; appliance RAID/DDP configuration and SANtricity LUN sizing must not be arbitrarily changed to enlarge StorageGRID object storage.

Reference topics: StorageGRID Expansion Data-only Storage Nodes Object Capacity Erasure Coding EC Rebalancing FabricPool Capacity Planning

FabricPool normally connects ONTAP to StorageGRID through an HTTPS load balancer endpoint. That endpoint uses a server certificate so that ONTAP can authenticate the StorageGRID service. NetApp specifically warns that if the certificate securing the ONTAP-to-StorageGRID connection expires, FabricPool temporarily stops working and ONTAP loses access to data tiered to StorageGRID.

The same problem can occur when the endpoint certificate is renewed or replaced in StorageGRID but the corresponding trusted certificate on ONTAP is not updated. NetApp requires the StorageGRID and ONTAP certificate configurations to remain synchronized; after certificate replacement or renewal, ONTAP must trust the new certificate chain.

The scenario also eliminates the node-failure answers. The two Gateway Nodes are configured in an HA group, so failure of one Gateway Node should not independently cause the FabricPool endpoint to become unavailable. Likewise, losing one Storage Node does not normally prevent access to the StorageGRID S3 service. A Client Network trust-state change would have broader networking implications and does not fit the isolated, time-related FabricPool failure described.

Therefore, C is the correct answer.

Reference topics: FabricPool Integration StorageGRID Load Balancer Endpoints HTTPS/TLS Certificates Certificate Expiration and Rotation

StorageGRID evaluates ILM rules sequentially from the top of the active policy. As soon as an object matches a rule, that rule's placement instructions are applied and the object is not evaluated against subsequent rules. Therefore, the rule containing the specific status=archive filter must appear before the catch-all rule.

In option A, objects tagged status=archive match Rule 1 and receive 4+2 erasure coding at the designated single-site storage pool. StorageGRID supports 4+2 erasure coding in a one-site storage pool provided that at least six data-capable Storage Nodes are available; seven are recommended.

Objects without the archive tag do not match Rule 1 and proceed to Rule 2. Rule 2 serves as the default rule, providing two replicated copies across the required sites. NetApp requires the default rule to be last and to have no filters, ensuring that it catches every object not matched earlier.

Option C is incorrect because its unrestricted first rule would match every object, preventing the archive-specific rule from ever being evaluated. B applies the protection methods to the wrong object classes, while D provides no rule for non-archive objects.

Reference topics: ILM Policies Rule Evaluation Order Advanced Filters/Object Tags Default Rule Replication Single-Site Erasure Coding

The ORLM (Object Rules Met) audit message is the appropriate source for determining which ILM rule StorageGRID applied to an object. NetApp documents that ORLM is generated when object data has been successfully stored according to an ILM rule. Critically, the ORLM record contains a RULE field, which identifies the human-readable label of the ILM rule applied to that object. It also includes the object's CBID, ILM status, result, and storage-location information.

A metadata lookup in option A is valuable for verifying the current physical placement of replicated copies or erasure-coded fragments, but it does not directly identify the ILM rule responsible for that placement. NetApp specifically recommends ORLM when additional information about the ILM evaluation is required.

Option C simulates how an active ILM policy would evaluate representative metadata; it does not prove which rule was actually applied to an already-ingested object. Option D is also insufficient because an SPUT audit record confirms completion of an S3 PUT transaction and supplies identifiers such as the CBID, bucket, and key, but does not contain the applied ILM rule name.

Reference topics: Audit Logs ILM Audit Messages ORLM/Object Rules Met RULE Field Object Metadata Lookup ILM Troubleshooting

The correct solution is the CloudMirror service. CloudMirror is a StorageGRID Platform Service that automatically replicates selected objects from a StorageGRID S3 bucket to an external S3-compatible destination, including Amazon S3. NetApp specifically identifies the use case of mirroring newly ingested customer data into Amazon S3 so that AWS services can perform analytics or other processing on that data.

CloudMirror operates independently of the grid's active ILM policies. After object ingest succeeds, StorageGRID attempts to deliver the replicated object to the configured destination as soon as possible. The tenant configures a Platform Services endpoint containing the destination Amazon S3 bucket information and credentials, then applies a CloudMirror replication configuration to the source bucket.

Option B is incorrect because cross-grid replication is designed for replication between StorageGRID systems connected through grid federation, rather than for using Amazon S3 as an external analytics destination. NetApp XCP and Robocopy are file migration/copy utilities and are not StorageGRID's native event-driven S3 replication mechanism.

Therefore, D. CloudMirror service directly satisfies the requirement to replicate newly ingested StorageGRID objects into Amazon S3 for downstream AWS processing.

Reference topics: Tenant Manager Platform Services CloudMirror Replication Amazon S3 Endpoint Hybrid Cloud Data Pipelines