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| Section | Objectives |
|---|---|
| ONTAP SAN implementation testing and troubleshooting | - Testing tasks - Data migration - Troubleshooting tasks |
| ONTAP SAN Concepts | - Data protection concepts - Storage controller configuration concepts - Switch and host configuration concepts - Storage space utilization or management concepts |
| ONTAP SAN solution assessment | - Configuration components using tools - Environmental or physical considerations - Solution design and hardware provisioned to meet customer requirements or expectations - Prerequisites and inventory for the installation of all SAN components during planning |
| ONTAP SAN implementation and configuration | - Clustered storage system FCP configuration tasks - Clustered storage system iSCSI configuration tasks - SVM configuration tasks - Storage space utilization or management concepts - Data protection - Switches and host systems - Clustered storage system NVMe configuration tasks - Clustered storage systems and node configuration tasks |
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48. Frage
A customer has onboarded a new application that is based on SAN, and they need to present additional storage to an FCP SAN host.
Which two tasks must be performed on the storage cluster to present the storage? (Choose two.)
Antwort: A,C
Begründung:
For an FCP SAN host, the storage object to present is a LUN, and host access is controlled by mapping that LUN to an initiator group. NetApp's SAN provisioning workflow creates the LUN, creates or selects an igroup containing the host's FC WWPNs, and then creates the LUN mapping. A namespace and subsystem are NVMe constructs, not the objects used to present conventional SCSI LUN storage over FCP. Therefore, creating a namespace or mapping storage to an NVMe subsystem would not satisfy the stated FCP requirement. The question assumes the FCP SVM and host connectivity already exist; the required storage- side actions are to provision the new LUN and map it to the appropriate igroup. Relevant SAN ONTAP topics are FCP provisioning, LUN creation, igroups, WWPN-based host access, and LUN mapping.
49. Frage
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?
Antwort: D
Begründung:
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.
50. Frage
A customer has a legacy NetApp E-Series array serving FC LUNs. The customer purchases a new four-node NetApp AFF All SAN Array (ASA) C-Series replacement. The customer needs to migrate data from the E- Series array to AFF using native storage features.
Which NetApp technology meets this requirement?
Antwort: C
Begründung:
Foreign LUN Import (FLI) is ONTAP ' s native block-level migration technology for importing SAN LUN data from an external source array into native ONTAP LUNs. FLI operates at the storage layer rather than requiring host file-copy utilities and supports controlled migration workflows across heterogeneous SAN environments. ONTAP initiator ports access the source array ' s target ports through the FC fabric, after which an import relationship is established between the source LUN and the destination ONTAP LUN. SyncMirror is used for synchronous plex mirroring within MetroCluster architecture, while SnapMirror and BlueXP replication are ONTAP replication technologies and do not provide this foreign-array LUN import workflow.
The precise source-array/model combination must also be validated against NetApp interoperability requirements. Relevant topics include FLI discovery, FC zoning, foreign LUNs, import relationships, and migration validation.
51. Frage
A NetApp AFF node in a four-node cluster has a single FC port on one node, which Is used for legacy tape backup. Tape is no longer needed, and the port is disconnected and modified for reuse in the FCP SAN.
Based on this change, which command will verify that the port is usable?
Antwort: A
Begründung:
To verify that a modified FC port is usable after it has been repurposed from tape backup to FCP SAN, the command system node hardware unified-connect show should be used. This command checks the status and configuration of the unified connect hardware, ensuring that the port is correctly set up for the new function in the SAN environment.
For additional details, see:
* NetApp Command Reference
52. Frage
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.)
Antwort: A,D
Begründung:
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
53. Frage
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