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| Section | Objectives |
|---|---|
| ONTAP SAN implementation testing and troubleshooting | - Data migration - Troubleshooting tasks - Testing tasks |
| ONTAP SAN solution assessment | - Configuration components using tools - Solution design and hardware provisioned to meet customer requirements or expectations - Environmental or physical considerations - Prerequisites and inventory for the installation of all SAN components during planning |
| ONTAP SAN implementation and configuration | - Clustered storage system FCP configuration tasks - Clustered storage system iSCSI configuration tasks - Clustered storage system NVMe configuration tasks - Data protection - Switches and host systems - Clustered storage systems and node configuration tasks - SVM configuration tasks - Storage space utilization or management concepts |
| ONTAP SAN Concepts | - Switch and host configuration concepts - Storage controller configuration concepts - Data protection concepts - Storage space utilization or management concepts |
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問題 #90
When using FCP, what is the minimum number of FC switches needed to redundantly attach three ESXi hosts?
答案：B
解題說明：
When using Fibre Channel Protocol (FCP), the minimum number of FC switches needed to redundantly attach three ESXi hosts is 2. This setup ensures that each host has multiple paths to the storage, providing high availability and fault tolerance. Each ESXi host should be connected to both switches, allowing for continuous operation even if one switch fails.
For more information, refer to:
* NetApp Documentation on FC Switch Configurations
* NetApp Community Discussion on Redundant FC Setup
問題 #91
A customer uses several node types in their SAN environment. They want to migrate iSCSI LIFs without disruption.
Which command can achieve this?
答案：B
解題說明：
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.
問題 #92
An SVM is created for FCP traffic. LUNs must be created to share with ESXi hosts for datastores. Which two items must be configured after the LUN is created, for this to happen? (Choose two.)
答案：B,D
解題說明：
For configuring LUNs to share with ESXi hosts for datastores in an SVM created for FCP traffic, the following steps are necessary after creating the LUN:
* Create an igroup with the ESXi hosts ' WWPNs: This step involves defining an initiator group that includes the WWPNs of the ESXi hosts that need access to the LUN.
* Map the LUNs to the igroup: This step assigns the LUN to the created igroup, allowing the ESXi hosts to access the LUN.
For further details, refer to:
* NetApp Documentation on LUN and igroup Configuration
問題 #93
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?
答案：C
解題說明：
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.
問題 #94
A customer has demanding database servers that require larger I/O queue counts and queue depths.
What should be done to increase these parameters for certain hosts?
答案：D
解題說明：
Adding the selected hosts to the NVMe subsystem with high priority is the correct method because ONTAP host priority controls the NVMe I/O queue resources assigned to a host. NetApp's NVMe subsystem model defines the host priority setting as allocating appropriate I/O queue counts and queue depths for the host to submit I/O commands. Therefore, demanding database hosts that require larger queue counts and deeper queues should receive the higher host-priority setting rather than changing a volume QoS policy. QoS governs workload throughput or performance limits and does not directly redefine the NVMe host submission-queue count and depth. Likewise, queue depth is not configured on an individual namespace in the manner described by option D. Relevant SAN ONTAP topics are NVMe subsystems, host priority, I/O queue count, I/O queue depth, and host performance configuration.
問題 #95
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