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| Section | Objectives |
|---|---|
| ONTAP SAN Concepts | - Data protection concepts - Storage controller configuration concepts - Switch and host configuration concepts - Storage space utilization and management concepts |
| ONTAP SAN Implementation Testing and Troubleshooting | - Data migration tasks - Implementation validation and testing tasks - Connectivity and performance troubleshooting |
| ONTAP SAN Solution Assessment | - Prerequisites and inventory for SAN components - Installation planning and configuration tools - Solution design and hardware provisioning - Environmental and physical considerations |
| ONTAP SAN Implementation and Configuration | - Fibre Channel Protocol (FCP) configuration - iSCSI configuration - NVMe configuration - Clustered storage systems and node configuration - Switch, host, data protection and storage management - Storage Virtual Machine (SVM) configuration |
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NEW QUESTION # 94
An administrator has a two-node NetApp ONTAP cluster that is hosting FC LUNs for 90 SAN hosts. The hosts are experiencing occasional performance problems and receiving QFULL responses from the cluster nodes.
Which action would resolve this issue?
Answer: A
Explanation:
A QFULL response indicates that the storage controller's FC target-port command queue has reached its supported capacity and cannot accept additional SCSI commands. With 90 hosts generating I/O, excessive fan- in to the existing target ports can exhaust available queue resources. Configuring additional FC target ports allows host connections and queued commands to be distributed across more storage-side target resources, reducing pressure on each individual target port. Increasing initiator queue depth would worsen the condition because hosts could submit more outstanding commands. Similarly, increasing target-port queue depth is not the appropriate administrator-controlled remedy presented here because the physical target adapter has defined queue limits. NetApp recommends planning host fan-in carefully to avoid QFULL conditions.
Relevant topics include FC queue depth, target-port fan-in, QFULL responses, SAN scalability, and FC target- port design
NEW QUESTION # 95
An administrator needs to configure Foreign LUN Import on a NetApp HA pair to migrate over FCP LUNs from a third-party array while serving other LUNs.
Which two actions are required to complete this task? (Choose two.)
Answer: A,C
Explanation:
To configure Foreign LUN Import (FLI) on a NetApp HA pair to migrate over FCP LUNs from a third-party array while serving other LUNs, the following actions are required:
* Create zoning from the third-party array to the cluster: Proper zoning ensures that the NetApp cluster can communicate with the third-party storage array.
* Convert a single FC port on each controller to an FC initiator port: This is necessary for the NetApp system to initiate the connection and access the LUNs on the third-party array.
For more information, refer to:
* NetApp Documentation on Foreign LUN Import
NEW QUESTION # 96
What is the maximum size for a LUN in NetApp ONTAP 9.14.1 software?
Answer: D
Explanation:
In NetApp ONTAP 9.14.1 software, the maximum size for a LUN is 128TiB. This limit ensures that large datasets can be stored and managed efficiently within a single LUN, catering to the needs of high-capacity SAN environments
NEW QUESTION # 97
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: B,D
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 # 98
A storage engineer zones a new FCP SVM to an SQL cluster.
Which two commands can be used to check connectivity? (Choose two.)
Answer: B,C
Explanation:
ONTAP provides dedicated FCP connectivity tests for validating communication between host initiators and FC LIFs. The vserver fcp ping-igroup show command performs a connectivity check between FCP initiators contained in an igroup and the FCP LIFs through which those initiators are configured to connect. The vserver fcp ping-initiator show command performs the equivalent validation for an individual FC initiator. These commands are therefore appropriate after zoning a new FCP SVM to SQL hosts. cluster ping-cluster validates ONTAP ' s internal cluster network and is unrelated to host-to-storage FC connectivity. network fcp zone show displays discovered FC zoning information but is not the specific FCP initiator connectivity test requested. Relevant SAN ONTAP topics include FC zoning validation, igroups, WWPN connectivity, FCP LIFs, and SAN troubleshooting commands.
NEW QUESTION # 99
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