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| Section | Objectives |
|---|---|
| Topic 1: ONTAP SAN solution assessment | - Environmental or physical considerations - Configuration components using tools - Prerequisites and inventory for the installation of all SAN components during planning - Solution design and hardware provisioned to meet customer requirements or expectations |
| Topic 2: ONTAP SAN implementation testing and troubleshooting | - Data migration - Troubleshooting tasks - Testing tasks |
| Topic 3: ONTAP SAN implementation and configuration | - Switches and host systems - Clustered storage system iSCSI configuration tasks - Clustered storage system NVMe configuration tasks - Clustered storage system FCP configuration tasks - Storage space utilization or management concepts - SVM configuration tasks - Data protection - Clustered storage systems and node configuration tasks |
| Topic 4: ONTAP SAN Concepts | - Data protection concepts - Switch and/or host configuration concepts - Storage space utilization or management concepts - Storage controller configuration concepts |
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質問 # 60
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.)
正解：A、C
解説：
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
質問 # 61
Which NetApp ONTAP option enables automatic host-side space management for a LUN?
正解：C
解説：
The space-allocation option enables ONTAP support for SCSI thin-provisioning functions and allows compatible SAN hosts to manage and reclaim unused LUN space. When space allocation is enabled, ONTAP can communicate storage-space conditions to the host and support host-initiated space reclamation through mechanisms such as SCSI UNMAP. NetApp specifically states that enabling space allocation allows SAN hosts to reclaim storage that is no longer being used. space-reserve controls whether physical capacity is reserved for the LUN but does not provide host-side reclamation. resize relates to changing storage size, and alua controls asymmetric path behavior rather than capacity management. Current ONTAP releases enable space allocation by default for many newly created SAN objects. Relevant SAN ONTAP topics include LUN thin provisioning, SCSI UNMAP, space reclamation, and LUN space-allocation configuration.
質問 # 62
During an iSCSI deployment, the customer requests a change of front-end network connections on the NetApp ONTAP cluster from twinax cables to fiber-optic cables.
Which two NetApp tools would an administrator use to verify the supported port speeds and transceivers?
(Choose two.)
正解：B、D
解説：
During an iSCSI deployment, if a customer requests a change from twinax cables to fiber-optic cables, two NetApp tools can be used to verify the supported port speeds and transceivers:
* Hardware Universe (HWU): This tool is essential for determining the supported transceivers and port speeds for NetApp hardware. It provides detailed information on hardware compatibility, including supported transceivers, cables, and port speeds, which helps ensure that the selected components are compatible with the NetApp storage system.
* Interoperability Matrix Tool (IMT): The IMT provides comprehensive compatibility information between NetApp products and third-party components. It includes details on supported transceivers and port speeds, ensuring that any changes made to the network connections are supported and will function correctly in the given configuration.
For more detailed information, you can refer to the following resources:
* NetApp Hardware Universe ( NetApp ).
* NetApp Interoperability Matrix Tool ( NetApp ).
質問 # 63
What are two benefits of implementing VLANs for NVMe/TCP configurations? (Choose two.)
正解：A、D
解説：
Implementing VLANs for NVMe/TCP configurations provides several benefits, two of which are increased resiliency and increased security:
* Increased Resiliency: VLANs help segment the network traffic, reducing the risk of a single point of failure. By isolating NVMe/TCP traffic into specific VLANs, network issues can be contained within a VLAN, preventing them from affecting other parts of the network. This isolation ensures that disruptions are minimized and network resiliency is enhanced.
* Increased Security: VLANs provide an added layer of security by segregating traffic. This segregation ensures that NVMe/TCP traffic is isolated from other types of traffic, reducing the risk of unauthorized access or data breaches. VLANs help in enforcing stricter access controls and monitoring, thereby increasing the overall security of the network.
For more information on the benefits of VLANs in NVMe/TCP configurations, you can refer to NetApp ' s technical resources:
* Implementing and Configuring Modern SANs with NVMe-oF ( NetApp ).
* SAN Configuration Best Practices ( NetApp Community ).
質問 # 64
A NetApp FC SVM and six clients have been attached to a redundant pair of Cisco fabric switches. Each NetApp controller and client has one connection to each switch.
What are two ways to verify that all client paths are connecting to the NetApp FC SVM? (Choose two.)
正解：B、D
解説：
Verification should confirm actual FC logins at both the fabric and ONTAP layers. On Cisco switches, show flogi database displays devices that have successfully completed Fabric Login, enabling the engineer to confirm host and storage WWPN presence within the fabric. On ONTAP, vserver fcp initiator show displays FCP initiators that are currently logged in and identifies their associated SVM, LIF, WWPN, and igroup information. Together, these commands validate end-to-end client connectivity. show zoneset active confirms the currently activated zoning configuration but does not prove that every initiator has successfully logged in.
vserver fcp portname show concerns target port-name information rather than currently connected initiators.
Relevant SAN ONTAP topics include FLOGI, FC logins, initiator WWPNs, FCP LIFs, zoning validation, and redundant fabric troubleshooting.
質問 # 65
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