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| Section | Objectives |
|---|---|
| ONTAP SAN solution assessment | - Prerequisites and inventory for the installation of all SAN components during planning - Environmental or physical considerations - Solution design and hardware provisioned to meet customer requirements or expectations - Configuration components using tools |
| ONTAP SAN implementation testing and troubleshooting | - Testing tasks - Troubleshooting tasks - Data migration |
| ONTAP SAN implementation and configuration | - Switches and host systems - Clustered storage system NVMe configuration tasks - Clustered storage system FCP configuration tasks - Clustered storage system iSCSI configuration tasks - Clustered storage systems and node configuration tasks - SVM configuration tasks - Data protection - Storage space utilization or management concepts |
| ONTAP SAN Concepts | - Data protection concepts - Switch and host configuration concepts - Storage controller configuration concepts - Storage space utilization or management concepts |
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NEW QUESTION # 96
A customer has demanding database servers that require larger I/O queue counts and queue depths.
What should be done to increase these parameters for certain hosts?
Answer: B
Explanation:
Adding the selected hosts to the NVMe subsystem with high priority is the correct method because ONTAP host priority controls the NVMe I/O queue resources assigned to a host. NetApp's NVMe subsystem model defines the host priority setting as allocating appropriate I/O queue counts and queue depths for the host to submit I/O commands. Therefore, demanding database hosts that require larger queue counts and deeper queues should receive the higher host-priority setting rather than changing a volume QoS policy. QoS governs workload throughput or performance limits and does not directly redefine the NVMe host submission-queue count and depth. Likewise, queue depth is not configured on an individual namespace in the manner described by option D. Relevant SAN ONTAP topics are NVMe subsystems, host priority, I/O queue count, I/O queue depth, and host performance configuration.
NEW QUESTION # 97
When using FCP, what is the minimum number of FC switches needed to redundantly attach three ESXi hosts?
Answer: C
Explanation:
When using Fibre Channel Protocol (FCP), the minimum number of FC switches needed to redundantly attach three ESXi hosts is 2. This setup ensures that each host has multiple paths to the storage, providing high availability and fault tolerance. Each ESXi host should be connected to both switches, allowing for continuous operation even if one switch fails.
For more information, refer to:
* NetApp Documentation on FC Switch Configurations
* NetApp Community Discussion on Redundant FC Setup
NEW QUESTION # 98
An administrator is deploying a new SAN workload that has a NetApp All SAN Array (ASA) cluster. The customer wants to reclaim space by tiering to Azure Blob storage.
According to NetApp best practices, which volume tiering policy should be applied?
Answer: B
Explanation:
The Auto FabricPool tiering policy permits ONTAP to identify cold blocks in both the active filesystem and Snapshot data and move those blocks from the performance tier to the configured object-store capacity tier, including Microsoft Azure Blob Storage. Unlike the all policy, Auto does not immediately classify all blocks as cold; active data remains on the performance tier until it satisfies the cooling criteria. The default cooling period for Auto is 31 days and can be adjusted within supported limits. snapshot-only restricts tiering primarily to Snapshot-related blocks, while none prevents additional blocks from being tiered. Because the customer specifically wants to reclaim performance-tier capacity while retaining active SAN workload behavior, the Auto policy provides the appropriate balance between cloud-tier space reclamation and performance.
NEW QUESTION # 99
A customer has recently installed a new NetApp AFF system and Cisco Nexus 9000 Series switches for their SAN workload. The administrator is tasked with configuring interface groups for port-based load balancing.
Which two commands are required? (Choose two.)
Answer: A,D
Explanation:
ONTAP interface groups support several traffic-distribution algorithms, including port, which distributes traffic using transport-layer TCP or UDP port information. Therefore, network port ifgrp create -distr-func port establishes the corresponding ONTAP-side distribution behavior. The connected Cisco Nexus infrastructure should use a compatible port-channel hashing method; NetApp validated architectures show port-channel load-balance src-dst l4port for Nexus switches so source and destination Layer-4 ports contribute to traffic distribution. This improves utilization across member links compared with algorithms using fewer flow attributes. The original V9.02 text contained the typographical string 14port; the correct command parameter is l4port, meaning Layer 4 port. Options C and D do not establish the requested port-based load- balancing algorithm. Relevant SAN ONTAP topics include interface groups, port distribution functions, link aggregation, and Nexus port-channel hashing.
NEW QUESTION # 100
A customer opens a support case for performance issues with an FC Oracle database after migrating from a NetApp AFF system to a NetApp All SAN Array (ASA) platform. Further investigation shows that the number of paths exceeds the recommendation for SAN deployment.
What are two ways to address this problem? (Choose two.)
Answer: A,B
Explanation:
When the number of paths exceeds the recommended configuration for SAN deployment, it can cause performance issues. To address this problem, you can:
* Use Selective LUN Mapping (SLM): SLM allows you to control which LIFs (Logical Interfaces) are used to access specific LUNs, thus reducing the number of paths and potentially improving performance by aligning with best practice configurations.
* Reconfigure the fabric switch zoning: Adjusting the zoning on the fabric switches can help manage and optimize the number of paths, ensuring that there are not too many paths that could lead to inefficient I
/O operations and performance degradation.
For more details, refer to:
* NetApp SAN Host Configuration
* NetApp Best Practices for SAN
NEW QUESTION # 101
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