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| Section | Objectives |
|---|---|
| Topic 1: ONTAP SAN implementation and configuration | - Clustered storage systems and node configuration tasks - Clustered storage system NVMe configuration tasks - Storage space utilization or management concepts - SVM configuration tasks - Data protection - Clustered storage system FCP configuration tasks - Clustered storage system iSCSI configuration tasks - Switches and host systems |
| Topic 2: ONTAP SAN solution assessment | - Solution design and hardware provisioned to meet customer requirements or expectations - Configuration components using tools - Prerequisites and inventory for the installation of all SAN components during planning - Environmental or physical considerations |
| Topic 3: ONTAP SAN implementation testing and troubleshooting | - Troubleshooting tasks - Testing tasks - Data migration |
| 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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질문 # 33
Which functionality enables a host subsystem to have multiple paths to a NetApp ONTAP NVMe namespace?
정답：A
설명：
Asymmetric Namespace Access (ANA) is the NVMe mechanism used by ONTAP to provide multipath access to NVMe namespaces. NetApp documents that NVMe hosts use ANA for multipath high availability, whereas conventional FCP and iSCSI hosts use Asymmetric Logical Unit Access (ALUA). ANA enables the NVMe host to understand the accessibility and optimization state of each path to a namespace and select an appropriate path during normal operation or failover. An NQN is an NVMe Qualified Name used to identify hosts, subsystems, and controllers; it does not provide multipath functionality. IQN is associated with iSCSI, while ALUA applies to SCSI-based SAN protocols. Therefore, ANA is specifically responsible for NVMe namespace multipathing in ONTAP environments. Relevant SAN ONTAP topics include NVMe-oF, ANA, namespace access, host multipathing, and HA path management.
질문 # 34
Which two NetApp features enable an administrator to limit the number of paths that a host sees to a LUN?
(Choose two.)
정답：A,D
설명：
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.
질문 # 35
A customer wants a NetApp ONTAP All SAN Array (ASA) cluster set up with a redundant Ethernet configuration.
What needs to be configured to achieve this?
정답：B
설명：
IP SAN redundancy requires independent storage paths between each host and both nodes of the HA pair.
NetApp SAN networking guidance recommends creating multiple iSCSI paths from each node and specifically allows two data LIFs per node to provide connectivity through separate Ethernet networks. These networks should use separate IP subnets or ranges so that loss of one network, switch, port, or path does not eliminate host access to the storage. Host-side MPIO then uses the remaining paths during a failure. A node- management LIF provides administrative connectivity and is not a redundant data path. Selective LUN Mapping controls which cluster nodes report a LUN, while separate SVMs are not required merely to create network redundancy. Therefore, at least two data LIFs per node across separate IP networks provide the requested redundant Ethernet SAN configuration.
질문 # 36
An administrator has a NetApp AFF cluster with two SVMs serving LUNs. SnapMirror active sync is configured, and a disaster recovery test is planned over the weekend.
Which NetApp ONTAP command will show the status of this test?
정답：A
설명：
To check the status of a SnapMirror active sync disaster recovery test on a NetApp ONTAP cluster, you would use the command snapmirror failover show. This command provides the necessary details about the failover status, helping administrators verify if the disaster recovery test is proceeding as expected. It displays the status of the failover groups and their readiness, which is essential for confirming the effectiveness of the disaster recovery setup.
For more detailed information on SnapMirror commands and their usage, refer to:
* NetApp Documentation - SnapMirror Commands ( NetApp Community ) ( NetApp Community ).
질문 # 37
An administrator has a two-node NetApp ONTAP cluster that is hosting FC LUNs for 90 SAN hosts. The hosts are experiencing occasional performance problems and receiving QFULL responses from the cluster nodes.
Which action would resolve this issue?
정답：B
설명：
A QFULL response indicates that the storage controller's FC target-port command queue has reached its supported capacity and cannot accept additional SCSI commands. With 90 hosts generating I/O, excessive fan- in to the existing target ports can exhaust available queue resources. Configuring additional FC target ports allows host connections and queued commands to be distributed across more storage-side target resources, reducing pressure on each individual target port. Increasing initiator queue depth would worsen the condition because hosts could submit more outstanding commands. Similarly, increasing target-port queue depth is not the appropriate administrator-controlled remedy presented here because the physical target adapter has defined queue limits. NetApp recommends planning host fan-in carefully to avoid QFULL conditions.
Relevant topics include FC queue depth, target-port fan-in, QFULL responses, SAN scalability, and FC target- port design
질문 # 38
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