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| Section | Objectives |
|---|---|
| ONTAP SAN Concepts | - Switch and host configuration concepts - Data protection concepts - Storage space utilization or management concepts - Storage controller configuration concepts |
| ONTAP SAN implementation testing and troubleshooting | - Troubleshooting tasks - Data migration - Testing tasks |
| 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 | - SVM configuration tasks - Switches and host systems - Clustered storage system iSCSI configuration tasks - Clustered storage system FCP configuration tasks - Storage space utilization or management concepts - Data protection - Clustered storage system NVMe configuration tasks - Clustered storage systems and node configuration tasks |
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NEW QUESTION # 51
A SAN administrator has a new NetApp ONTAP cluster that is configured with iSCSI LUNs. The iSCSI LIFs are configured on interface groups with a 1500 MTU. The server and network administrators have a maintenance window scheduled to modify the server NIC and iSCSI switch VLANs to use jumbo frames.
Based on this scenario, which command enables jumbo frames?
Answer: C
Explanation:
ONTAP manages the MTU consistently across ports belonging to the same broadcast domain. To transition the storage network from the standard 1500-byte MTU to jumbo frames, the administrator modifies the MTU of the appropriate broadcast domain. The applicable operation is network port broadcast-domain modify, represented by broadcast-domain modify in the answer choices. NetApp documents 9000 bytes as a typical jumbo-frame MTU and notes that changing a broadcast-domain MTU changes the MTU for all ports contained in that domain. The surrounding Ethernet path-including host NICs and switch interfaces-must also support the configured MTU end to end. Changing an individual LIF, subnet, or unrelated port property does not provide the correct broadcast-domain-wide MTU configuration. Therefore, option C is the correct ONTAP configuration operation.
NEW QUESTION # 52
What Is modified when moving a LUN between different HA pairs in the same SVM to prevent loss of connectivity?
Answer: B
Explanation:
When moving a LUN between different HA pairs in the same SVM to prevent loss of connectivity, the reporting nodes must be modified. The reporting nodes configuration ensures that the initiator paths are properly updated to reflect the new physical location of the LUN. This prevents disruptions in connectivity by maintaining the correct pathing information for the host systems accessing the LUN.
For more details, refer to:
* NetApp Documentation on LUN Management
NEW QUESTION # 53
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: A
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 # 54
A LUN Is displaying 90% used space in the NetApp ONTAP CLI, but a Windows Server shows only 10% used space.
What is the first step to take to address this issue?
Answer: A
Explanation:
When a LUN shows 90% used space in the NetApp ONTAP CLI but a Windows Server shows only 10% used space, the discrepancy is often due to how space allocation is handled between the two systems.
Enabling space allocation ensures that the ONTAP system accurately reflects the actual space usage as reported by the host system, in this case, the Windows Server. This adjustment allows ONTAP to reclaim and manage space more effectively, aligning the reported usage between the ONTAP system and the host.
For more information, refer to:
* NetApp Community Discussion on Space Allocation
* NetApp Documentation on Space Usage
NEW QUESTION # 55
A storage administrator recently implemented ISCSI SAN in a customer environment. Which two actions should be done to ensure the best performance? (Choose two.)
Answer: C,D
Explanation:
To ensure the best performance in an iSCSI SAN implementation:
* Connect host and storage ports to the same switches: This minimizes latency and maximizes the efficiency of data paths by ensuring direct connections within the same network segment.
* Configure Jumbo frames in the entire data path: Setting a larger Maximum Transmission Unit (MTU) size reduces the overhead for processing each packet, thus improving overall network performance.
Ensuring Jumbo frames are configured end-to-end in the data path is crucial for optimal performance.
For further details, check:
* NetApp Best Practices for iSCSI
* NetApp Community Discussion on iSCSI Performance
NEW QUESTION # 56
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