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| Section | Objectives |
|---|---|
| Topic 1: Data Protection | - Backup and recovery concepts
|
| Topic 2: Troubleshooting NetApp systems | - Diagnostics and analysis
|
| Topic 3: Active IQ and Support Tools | - Monitoring and analytics
|
| Topic 4: Hybrid Cloud and Data Services | - Cloud integration concepts
|
| Topic 5: NetApp Hardware | - Hardware operations
|
| Topic 6: ONTAP OS | - Core ONTAP concepts
|
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94. Frage
What is the recommended value for disk and CPU use when you plan an upgrade?
Antwort: A
Begründung:
Upgrade Considerations for Disk and CPU Utilization:
During an ONTAP upgrade, it is critical to ensure the system has sufficient resources to handle the upgrade process without impacting normal operations.
Recommended Threshold:
NetApp recommends that both disk and CPU utilization should be below 70% before initiating an upgrade. This ensures that there is enough headroom for the upgrade operations and avoids performance degradation.
Steps to Verify Utilization:
Use the system node show -fields cpu command to check CPU usage. Use the storage aggregate show -fields used command to check aggregate disk utilization.
95. Frage
You replace a failed motherboard on node-02. After two hours, you log into the console port, and you see that the "waiting for giveback" message is displayed. Which command do you run to continue the process?
Antwort: D
Begründung:
The "waiting for giveback" message indicates that the repaired node is waiting for its storage to be returned from the HA partner. Running storage failover giveback -ofnode node-02 returns ownership and normal operation to node-02.
96. Frage
Which two factors can increase the chances of experiencing a NetApp WAFL inconsistency on an aggregate? (Choose two.)
Antwort: B,C
Begründung:
A). Ignoring NetApp Active IQ health risks
NetApp Active IQ provides proactive monitoring and alerts for system health risks, including risks related to WAFL inconsistencies. Ignoring these alerts can lead to unresolved issues such as metadata corruption, hardware failures, or system misconfigurations, increasing the chances of WAFL inconsistencies.
Examples of Active IQ Risks:
Disk health warnings.
High write latency or metadata bottlenecks.
Aggregates running out of space.
C). Using outdated disk firmware
Outdated disk firmware can cause performance issues, drive failures, or incorrect handling of I/O operations, potentially leading to WAFL inconsistencies. Disk firmware updates often include fixes for critical issues that improve reliability and prevent data corruption.
Importance:
Keeping firmware updated ensures compatibility with ONTAP and minimizes risks of disk-level errors that can propagate to WAFL.
97. Frage
While setting up a replication between two clusters, an administrator receives the following error message:
Failed to create cluster peering with 'Error: RPC to peer address
192.168.31.10 failed'.
What is the cause of this issue?
Antwort: C
Begründung:
Cluster peering requires specific network ports for RPC communication between clusters. A firewall blocking the required ports prevents the RPC connection to the peer address, causing the peering operation to fail.
98. Frage
Your customer notices that their AFF A220 high-availability (HA) system is showing Single-Path HA.
How do you make the system into multipath HA?
Antwort: A
Begründung:
In a NetApp high-availability (HA) configuration, multipath HA ensures redundancy by providing two independent paths from each controller to the connected storage. If the system is currently showing Single-Path HA, it means only one path is operational or connected, which is a potential single point of failure.
To convert the configuration to multipath HA, additional cabling must be configured to establish the second path. For the AFF A220 system, the correct connections are as follows:
Explanation of the Correct answer:
AFF A220 Port Configuration for HA:
Each controller in an AFF A220 has ports labeled 0a, 0b, 0c, and 0d for connectivity.
In a multipath HA configuration, each controller must have two independent paths to the connected storage via the partner controller's disk shelves.
Correct Cabling for Multipath HA:
Port 0a on both controllers must be connected to the corresponding port (e.g., disk shelf stack or Inter-Switch Link).
Port 0c on both controllers must also be connected to complete the redundant path.
These connections ensure that there are two independent data paths between the controllers and the storage system, providing fault tolerance in case one path fails.
Single-Path HA to Multipath HA:
If the system currently shows Single-Path HA, it is likely that only one set of ports (e.g., 0a and
0b) are cabled.
Adding the additional connections on 0a and 0c establishes the second path required for multipath HA.
99. Frage
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