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| Section | Objectives |
|---|---|
| ONTAP SAN Solution Assessment | - Installation planning and configuration tools - Solution design and hardware provisioning - Prerequisites and inventory for SAN components - Environmental and physical considerations |
| ONTAP SAN Implementation Testing and Troubleshooting | - Connectivity and performance troubleshooting - Implementation validation and testing tasks - Data migration tasks |
| ONTAP SAN Concepts | - Storage controller configuration concepts - Switch and host configuration concepts - Storage space utilization and management concepts - Data protection concepts |
| ONTAP SAN Implementation and Configuration | - Clustered storage systems and node configuration - NVMe configuration - Storage Virtual Machine (SVM) configuration - Fibre Channel Protocol (FCP) configuration - iSCSI configuration - Switch, host, data protection and storage management |
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NEW QUESTION # 76
What is used to release space from a NetApp ONTAP LUN when something is removed from within the Windows operating system?
Answer: D
Explanation:
SCSI UNMAP is the mechanism used by a supported SAN host to inform ONTAP that logical blocks within a thin-provisioned LUN are no longer required. Deleting files within Windows normally changes the filesystem
' s allocation information; without storage reclamation, ONTAP may still regard the associated LUN blocks as allocated. When LUN space allocation is enabled and the host supports logical block provisioning, Windows can issue SCSI UNMAP commands identifying unused blocks so ONTAP can return that physical capacity to the available storage pool. A SCSI reservation controls device-access coordination and does not reclaim capacity. Snapshot Autodelete manages Snapshot copies, while SnapCenter provides application-consistent data protection and management. Therefore, SCSI UNMAP is the SAN protocol operation responsible for reclaiming blocks released by the Windows filesystem.
NEW QUESTION # 77
A customer Is setting up a two-node cluster to serve (SCSI LUNs. How many interfaces should be created?
Answer: D
Explanation:
For a two-node cluster serving iSCSI LUNs, it is recommended to create two iSCSI LIFs per node. This configuration provides redundancy and load balancing, ensuring that each node can handle failover scenarios effectively and maintain high availability for the iSCSI connections.
For more details, see:
* NetApp Documentation on iSCSI LIF Configuration
NEW QUESTION # 78
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 # 79
A storage engineer maintains a NetApp cluster provisioned to provide FC LUNs to an ESXi host. There is no documentation describing how the environment or its components are configured, from initiators to targets.
In this scenario, which NetApp tool can be used to gather a comprehensive inventory of components from end to end?
Answer: B
Explanation:
Active IQ OneCollect is the appropriate discovery tool when the engineer needs an end-to-end inventory of a SAN environment. NetApp describes OneCollect as a structured data-collection utility that gathers information across storage systems, hosts, fabrics, and switches. That scope is specifically useful when existing documentation is missing and the engineer must understand initiators, HBAs, zoning or fabric details, host configuration, and storage targets before remediation or migration work. Upgrade Advisor is intended for ONTAP upgrade planning, while Unified Manager focuses on monitoring and management rather than broad discovery collection. Config Advisor validates configuration and cabling against supported practices, but it is not the primary end-to-end inventory collector described in this scenario. Relevant SAN ONTAP topics are SAN discovery, OneCollect data collection, host and fabric inventory, configuration assessment, and implementation documentation.
NEW QUESTION # 80
An engineer has a 100 GB volume with the space guarantee set to volume and fractional reserve set to 100.
The Snapshot reserve is disabled. The volume contains two 20 GB LUNs, and each LUN has the space guarantee enabled and is 50% full. The engineer creates a Snapshot copy of the volume, and no data is written or modified after the Snapshot copy is taken.
What is the available space in the volume?
Answer: D
Explanation:
The correct available capacity is 20 GB. Both 20 GB LUNs are space-reserved, so ONTAP reserves their full provisioned capacity rather than only the 10 GB currently consumed in each LUN. The two LUN reservations therefore account for 40 GB. Because the volume uses a 100% fractional reserve and a Snapshot copy exists, ONTAP also reserves sufficient overwrite space for 100% turnover of the reserved objects. That represents another 40 GB. Consequently, 80 GB of the 100 GB volume is committed: 40 GB for the two space-reserved LUNs and 40 GB to guarantee their overwrites. This leaves 20 GB available. NetApp describes fractional reserve 100 as reserving 100% of the space necessary for overwrites of reserved objects. Relevant topics include LUN space reservation, fractional reserve, thick provisioning, and Snapshot overwrite guarantees.
NEW QUESTION # 81
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