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| Section | Objectives |
|---|---|
| Topic 1: ONTAP SAN Implementation and Configuration | - iSCSI configuration - Storage Virtual Machine (SVM) configuration - Clustered storage systems and node configuration - Fibre Channel Protocol (FCP) configuration - Switch, host, data protection and storage management - NVMe configuration |
| Topic 2: ONTAP SAN Implementation Testing and Troubleshooting | - Data migration tasks - Implementation validation and testing tasks - Connectivity and performance troubleshooting |
| Topic 3: ONTAP SAN Concepts | - Switch and host configuration concepts - Data protection concepts - Storage controller configuration concepts - Storage space utilization and management concepts |
| Topic 4: ONTAP SAN Solution Assessment | - Solution design and hardware provisioning - Installation planning and configuration tools - Prerequisites and inventory for SAN components - Environmental and physical considerations |
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질문 # 94
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?
정답:D
설명:
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
질문 # 95
A customer uses several node types in their SAN environment. They want to migrate iSCSI LIFs without disruption.
Which command can achieve this?
정답:C
설명:
ONTAP supports iSCSI LIF migration between nodes specifically on All-Flash SAN Array (ASA) platforms running ONTAP 9.11.1 or later. The migration is restricted to ports on the LIF's home node or its HA partner, and the applicable CLI operation is network interface migrate. Standard AFF and FAS configurations do not provide the same cross-node iSCSI LIF migration capability described in this scenario. For those systems, an iSCSI LIF normally must be created on the required destination node rather than migrated between nodes.
The ucadmin modify command changes unified adapter personality and is unrelated to LIF migration.
Therefore, option D correctly combines the supported ASA platform with the appropriate ONTAP command.
Relevant topics include ASA SAN networking, iSCSI LIF mobility, HA partners, LIF migration, and nondisruptive SAN operations.
질문 # 96
Which NetApp feature presents LUNs only within the HA pair?
정답:B
설명:
Selective LUN Mapping (SLM) is the feature that presents LUNs only within the HA pair. SLM allows administrators to control which LUNs are visible to which hosts, ensuring that LUNs are only accessible through the designated HA pair, thus improving security and manageability.
For more information, see:
* NetApp Documentation on Selective LUN Mapping
* NetApp Community on LUN Mapping
질문 # 97
A customer Is setting up a four-node NetApp AFF cluster for use with NVMe/TCP and wants to use automatic host discovery.
Which protocol is used for the discovery of controllers?
정답:A
설명:
For automatic host discovery in a four-node NetApp AFF cluster using NVMe/TCP, the protocol used is mDNS (Multicast DNS). mDNS allows for the discovery of controllers and other networked devices without the need for a centralized DNS server, simplifying the setup process in environments that support NVMe over TCP.
For further information, refer to:
* NetApp Documentation on NVMe/TCP
* NetApp Community on Host Discovery
질문 # 98
A customer is using a new two-node NetApp All SAN Array (ASA) configuration with SnapMirror active sync. To verify that everything is set up correctly, the customer is reviewing the number of paths on the ESXi hosts.
How many paths should the customer see?
정답:D
설명:
Eight Active/Optimized paths and zero Active/Unoptimized paths is the correct result for the described ASA configuration. NetApp All SAN Array systems use symmetric active-active multipathing, under which all valid paths to a LUN are presented as active and optimized. NetApp's VMware guidance likewise states that ESXi recognizes ASA storage as symmetric and uses the active paths with round-robin multipathing. With SnapMirror active sync and the host connected through the intended redundant paths, the expected path presentation therefore does not contain the Active/Unoptimized paths characteristic of asymmetric access on non-ASA configurations. The key distinction is that ASA pathing is designed to avoid waiting for an ALUA transition after a controller failure. Relevant SAN ONTAP topics are ASA symmetric active-active, ALUA, ESXi multipathing, SnapMirror active sync, and redundant SAN paths.
질문 # 99
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