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| Section | Objectives |
|---|---|
| ONTAP SAN implementation testing and troubleshooting | - Troubleshooting tasks - Testing tasks - Data migration |
| ONTAP SAN solution assessment | - Prerequisites and inventory for the installation of all SAN components during planning - Solution design and hardware provisioned to meet customer requirements or expectations - Environmental or physical considerations - Configuration components using tools |
| ONTAP SAN Concepts | - Data protection concepts - Storage controller configuration concepts - Storage space utilization or management concepts - Switch and/or host configuration concepts |
| ONTAP SAN implementation and configuration | - Data protection - Clustered storage system iSCSI configuration tasks - Clustered storage system NVMe configuration tasks - Storage space utilization or management concepts - SVM configuration tasks - Clustered storage system FCP configuration tasks - Switches and host systems - Clustered storage systems and node configuration tasks |
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NEW QUESTION # 15
A customer deploys an SVM for FCP with four LIFs across two fabrics. Equal client traffic is seen across all four LIFs.
In this scenario, how is the traffic across the active, unoptimized paths forwarded to the node hosting the LUN?
Answer: C
Explanation:
In a traditional AFF or FAS SAN configuration using ALUA, paths through the controller that owns the LUN are reported as Active/Optimized. Paths entering through another controller can be Active/Non-Optimized.
When I/O arrives through an active, non-optimized path, ONTAP must forward that I/O internally to the node servicing the LUN. This indirect data path uses the ONTAP cluster interconnect, represented in the choices as the cluster network, and therefore introduces additional latency compared with a direct optimized path. The external FC fabric transports traffic only as far as the target LIF; the HA interconnect is associated primarily with HA-pair storage failover functions, and the peering network is used for intercluster communications and replication. Relevant SAN ONTAP topics include ALUA, optimized versus non-optimized paths, cluster interconnect forwarding, SLM, and FCP multipathing.
NEW QUESTION # 16
An engineer is troubleshooting FC connectivity issues on a customer's system and sees the following output from the network fcp adapter show command:
According to the output, what is the domain ID of the switch that is connected to port 2a of node n2?
Answer: C
Explanation:
The port address shown for node n2, adapter 2a is 10020. ONTAP reports the FC host port address as a hexadecimal fabric address. Fibre Channel port addresses are interpreted as a 24-bit FC address; when the displayed value is zero-padded to six hexadecimal digits, 10020 becomes 010020. The high-order byte is therefore 01, identifying switch domain ID 1. NetApp's network fcp adapter show command reference confirms that the command reports the Host Port Address and also exposes a domain-id field for the connected fabric. The other choices do not match the domain portion of this FC address. Therefore, the V9.02 supplied answer of D is incorrect for the displayed output. Relevant SAN ONTAP topics are FCP adapter diagnostics, FC port addresses, domain IDs, and fabric connectivity.
NEW QUESTION # 17
Which two NetApp features enable an administrator to limit the number of paths that a host sees to a LUN?
(Choose two.)
Answer: A,D
Explanation:
Selective LUN Mapping (SLM) and portsets are ONTAP mechanisms specifically used to control the number of paths visible between hosts and mapped LUNs. SLM automatically limits LUN access to paths through the node that owns the LUN and its HA partner, reducing unnecessary paths in larger clusters. A portset provides additional restriction by defining exactly which FCP or iSCSI LIFs an igroup can use to reach its mapped LUNs. NetApp notes that portsets can be combined with SLM when further path restriction is required.
ALUA identifies optimized and non-optimized paths but does not itself reduce the number of visible paths.
An igroup controls which initiators can access a LUN but does not independently restrict target LIF visibility.
Relevant topics include SLM, portsets, igroups, SAN multipathing, and path-count optimization.
NEW QUESTION # 18
When using tagged VLANs on Cisco Nexus switches for NVMe over TCP, which two changes must be made to enable jumbo frames? (Choose two.)
Answer: A,B
Explanation:
For enabling jumbo frames on Cisco Nexus switches for NVMe over TCP with tagged VLANs, the following changes are required:
* Modify the Cisco Nexus switches to use an MTU of 9216: Setting the MTU to 9216 ensures that the network can handle jumbo frames, reducing the number of packets needed for large data transfers and thus improving performance.
* Modify the appropriate broadcast domain in NetApp ONTAP software to use an MTU of 9216: This setting must match the network configuration to ensure end-to-end support for jumbo frames, which is essential for optimizing performance in NVMe over TCP environments.
For additional information, refer to:
* NetApp Documentation on NVMe over TCP
* Cisco Documentation on Jumbo Frames
NEW QUESTION # 19
What needs to be done to create a consistent Snapshot copy of a LUN without disruptions?
Answer: B
Explanation:
To create a consistent Snapshot copy of a LUN without disruptions, it is necessary to quiesce I/O to the LUN.
This process involves pausing or temporarily stopping the input/output operations to ensure that the data is in a consistent state when the snapshot is taken. This method is crucial for maintaining data integrity and consistency in the snapshot.
For further details, refer to:
* NetApp Documentation on Snapshot Consistency
* NetApp Best Practices for Snapshot Management
NEW QUESTION # 20
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