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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Monitoring, Troubleshooting and Maintenance | 20% | - Maintenance and upgrades
|
| Topic 2: Installation and Deployment | 15% | - Deployment procedures
|
| Topic 3: Configuration and Management | 25% | - Grid management
|
| Topic 4: StorageGRID Architecture and Components | 20% | - Software and hardware components
|
| Topic 5: Data Protection and Availability | 20% | - Replication and erasure coding
|
>> Exam Network Appliance NS0-077 Syllabus <<
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NEW QUESTION # 51
To comply with an industry regulation, a bank is establishing a disaster recovery solution across two grids.
The tenant federation was successfully configured. You are required to unidirectionally replicate a critical bucket from Grid-1 to Grid-2 and ensure that all of the content is identical on each grid, to reestablish operations in the event that Grid-1 fails.
After creating a bucket with versioning enabled on each grid, what are the required steps to complete the task?
Answer: C
NEW QUESTION # 52
A StorageGRID ILM policy has moved objects belonging to a specific bucket to a Cloud Storage Pool. The objects have transitioned automatically to S3 Glacier Deep Archive storage class to minimize costs. A user now requires immediate access to one of these archived objects.
How can the user achieve this goal?
Answer: D
Explanation:
When an object stored in a Cloud Storage Pool has transitioned to Amazon S3 Glacier Deep Archive, it is in a non-retrievable state. StorageGRID therefore cannot satisfy a normal GetObject request until a retrievable copy has first been restored. NetApp specifies that the client application must issue an S3 RestoreObject request to restore the object temporarily within the Cloud Storage Pool. After the restoration completes, the client can issue GetObject through StorageGRID to retrieve the data.
For a restored object, RestoreObject specifies how long the retrievable copy remains available. StorageGRID supports restoration from Glacier Deep Archive, but Deep Archive does not support the Expedited retrieval tier; only Standard or Bulk retrieval can be used. Thus, "immediate" access means initiating the restore process immediately, not instantaneous retrieval from the Deep Archive tier.
Option A is incorrect because GetObject does not automatically restore a non-retrievable Glacier object.
Option B is incorrect because restoration is performed through StorageGRID's S3 API; direct Amazon- console intervention is unnecessary. Option C is incorrect because StorageGRID explicitly supports RestoreObject for Cloud Storage Pool objects transitioned to Glacier Deep Archive.
Reference topics: ILM # Cloud Storage Pools # S3 Glacier Deep Archive # RestoreObject # GetObject # Retrieval Tiers
NEW QUESTION # 53
Your customer has a two-site StorageGRID system, with three Storage Nodes on each site. The customer wants to always read the last written version of an object. They have set up the information lifecycle management (ILM) policy to write a single copy to each site. They have set the ingest policy to Strict and the consistency profile to strong-global. During maintenance on a node on Site-2, an additional node on that site fails, and end users complain about being unable to upload objects to the grid.
What is the cause of these errors?
Answer: B
Explanation:
The failure is caused by the strong-global metadata consistency requirement, not by the Strict ILM placement requirement. StorageGRID stores object metadata in Cassandra, normally maintaining three metadata replicas per site. With three Storage Nodes at Site-2, taking one node down for maintenance and then losing another leaves only one metadata replica available at that site. The required metadata quorum can no longer be achieved for strong-global operations. NetApp documents that strong-global guarantees read-after-write consistency across all sites and requires sufficient metadata replicas to complete the operation.
The distinction from Strict ingest is important. Strict controls object-data placement: all copies specified by the ILM rule must be created before StorageGRID returns success. Here, the ILM rule requires only one copy at each site. Because one Storage Node remains operational at Site-2, StorageGRID can potentially place the Site-2 object copy there. Therefore, the data-placement requirement itself is not necessarily violated.
However, with two of the three metadata-bearing Storage Nodes unavailable at Site-2, Cassandra cannot satisfy the strong-global metadata consistency requirement, causing client PUT operations to fail.
Reference topics: S3 Consistency # Strong-global # Cassandra Metadata Replicas # Metadata Quorum # Strict ILM Ingest Behavior
NEW QUESTION # 54
A customer wants to test their application against a StorageGRID system to verify its compatibility.
What is the minimum number and type of nodes required to deploy a healthy virtual StorageGRID environment for this test?
Answer: A
Explanation:
A healthy StorageGRID deployment requires one primary Admin Node and at least three Storage Nodes at each site. NetApp StorageGRID 12.0 documentation states that every grid requires a primary Admin Node to provide core management and configuration services, while every site requires a minimum of three Storage Nodes. Therefore, the smallest healthy single-site virtual test environment contains four nodes: one Admin Node plus three Storage Nodes.
The three-Storage-Node minimum is important because Storage Nodes host core distributed services such as Cassandra, DDS, and ADC. In particular, the ADC service is hosted on at least three Storage Nodes at a site, supporting grid topology information, authentication, and service discovery.
Option A lacks the required primary Admin Node and therefore cannot constitute a complete manageable StorageGRID grid. Option D contains an Admin Node but only one Storage Node, which does not satisfy the three-node minimum. Option C would work, but the Gateway Node is optional because Admin Nodes can also provide S3 load-balancing functionality for a small compatibility-test deployment.
Therefore, B is the minimum healthy virtual configuration.
Reference topics: StorageGRID Architecture # Grid Node Types # Primary Admin Node # Minimum Storage Nodes per Site # Virtual Deployment Requirements
NEW QUESTION # 55
A StorageGRID administrator is tasked with ensuring uninterrupted access to the Grid Manager and Tenant Manager services. The deployment includes two Admin Nodes, four Gateway Nodes, and six Storage Nodes.
Which configuration meets the requirement?
Answer: B
Explanation:
To provide highly available access specifically to Grid Manager and Tenant Manager, the HA group must contain Admin Node interfaces. StorageGRID 12.0 documentation states that Admin Nodes provide access to these management services, whereas Gateway Nodes provide the Load Balancer service for S3 client traffic.
For Grid Manager access, the HA group should contain the primary Admin Node and one or more non- primary Admin Nodes; the primary Admin Node must be configured as the primary interface in the group.
Tenant Manager also runs on Admin Nodes. Tenant users connect to an Admin Node when accessing Tenant Manager, so using multiple Admin Node interfaces behind an HA virtual IP provides the required management-interface availability.
Option B is incorrect because Gateway Nodes do not provide Grid Manager or Tenant Manager. Option D is valid for S3 client access, because both Admin and Gateway Nodes run the Load Balancer service, but it is not the correct configuration for management-interface HA. Option C corresponds to a specialized HA configuration used for S3 Select and does not satisfy the management-service requirement.
Therefore, the correct answer is A.
Reference topics: Grid Manager # High Availability Groups # Administrative Connections # Admin Nodes # Grid Manager/Tenant Manager # VIP Failover
NEW QUESTION # 56
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