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| Section | Objectives |
|---|---|
| Topic 1: ONTAP SAN Concepts | - Storage controller configuration concepts - Data protection concepts - Storage space utilization and management concepts - Switch and host configuration concepts |
| Topic 2: ONTAP SAN Implementation Testing and Troubleshooting | - Implementation validation and testing tasks - Connectivity and performance troubleshooting - Data migration tasks |
| Topic 3: ONTAP SAN Implementation and Configuration | - Clustered storage systems and node configuration - Fibre Channel Protocol (FCP) configuration - iSCSI configuration - Storage Virtual Machine (SVM) configuration - Switch, host, data protection and storage management - NVMe configuration |
| Topic 4: ONTAP SAN Solution Assessment | - Environmental and physical considerations - Prerequisites and inventory for SAN components - Solution design and hardware provisioning - Installation planning and configuration tools |
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101. 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.
102. Frage
An administrator finishes an installation of a new NetApp ASA system at the customer site and creates a new LUN. The customer wants to restrict the access of the LUN to specific UFs.
Where would the administrator configure this?
Antwort: C
Begründung:
To restrict access to a newly created LUN to specific hosts, the administrator should configure the igroup (initiator group). An igroup is used to control which initiators (hosts) are allowed to access specific LUNs.
This ensures that only authorized hosts can access the storage, enhancing security and access control.
For more details, refer to:
* NetApp Documentation on iGroups ( NetApp ).
103. Frage
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?
Antwort: A
Begründung:
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.
104. Frage
An administrator runs the lun igroup show -insrar.ee command on a NetApp ONTAP SAN.
Based on the output, what is the initiator type?
Antwort: B
Begründung:
Based on the output of the command lun igroup show -instance, which lists the protocol as fcp and the initiator as server1.netapp.com, the initiator type is WWPN (World Wide Port Name). In Fibre Channel Protocol (FCP) environments, WWPNs are used to uniquely identify Fibre Channel devices. This contrasts with IQNs used in iSCSI, and NQNs used in NVMe over Fabrics.
For more details, refer to:
* NetApp Documentation on Initiators
105. Frage
A storage administrator recently implemented ISCSI SAN in a customer environment. Which two actions should be done to ensure the best performance? (Choose two.)
Antwort: C,D
Begründung:
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
106. Frage
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