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NEW QUESTION # 24
How do you set environment variables to factory settings?
Answer: B
Explanation:
To reset environment variables to factory settings, the set-defaults command is used. This command clears all customizations and restores the environment variables to their default values.
* Command Syntax:At the LOADER prompt, type:
Key Details:arduino
Copy code
set-defaults
* Effect:This command resets all environment variables (e.g., boot arguments, diagnostic settings) to their original factory defaults.
* B. unsetenv all:
* This command clears all environment variables, but it does not restore them to factory defaults.
* C. setenv factory:
* This is not a valid command in NetApp systems.
* D. wipeconfig:
* This command is used to clear configuration and logs but does not reset environment variables.
Why Other Options Are Incorrect:
* NetApp "System Configuration Guide" confirms the use of set-defaults for restoring environment variables to factory settings.
References:
NEW QUESTION # 25
You have upgraded your cluster from ONTAP 9.5 software to ONTAP 9.7 software. After two days, you notice that the upgrade is causing issues. You decide to revert to ONTAP 9.5 software.
Which two actions do you need to complete before you revert? (Choose two.)
Answer: A,D
Explanation:
Reverting to a previous ONTAP version requires careful preparation because ONTAP upgrades often introduce irreversible changes. To successfully revert, the following actions are needed:
* C. Reinstall your boot media and install ONTAP 9.5 software
* Explanation:You need to reinstall the older version of ONTAP (9.5) on the boot media because the current version (9.7) has been installed as part of the upgrade. The reinstallation ensures that the system boots with ONTAP 9.5.
* Steps:
* Boot the node into maintenance mode.
* Perform the reinstallation using the appropriate ONTAP 9.5 image.
* D. Wipe your config and restore from backup
* Explanation:A revert requires wiping the configuration because ONTAP upgrades may have made changes to the cluster configuration or WAFL metadata. Restoring the configuration from a backup ensures consistency with the older ONTAP version.
* Steps:
* Back up the current cluster configuration before proceeding.
* Use the restored backup after the revert is complete to reconfigure the system.
Why the Other Options Are Incorrect:
* A. Revert from ONTAP 9.7 software to ONTAP 9.6 software and then to ONTAP 9.5 software:
* Incorrect. ONTAP reverts must directly target the desired version. You cannot perform multi-step reverts.
* B. Delete all Snapshot copies from the past two days:
* Incorrect. Deleting Snapshot copies is not a prerequisite for reverting ONTAP. While older Snapshot copies might not be compatible with the reverted version, they do not need to be deleted before the revert.
References:
* NetApp Documentation: ONTAP Upgrade and Revert Procedures.
* NetApp Knowledge Base: Steps for reinstallation and configuration restoration during a revert.
NEW QUESTION # 26
During which two operations is the NVRAM replayed by the high-availability (HA) partner? (Choose two.)
Answer: A,D
Explanation:
* Description:
* When a negotiated takeover occurs (e.g., for maintenance or upgrades), NVRAM data is replayed by the HA partner to ensure no data is lost.
* Relevance:
* This ensures that all pending writes are safely processed by the partner node.
1. During a Negotiated Takeover:
* Description:
* If a node loses power unexpectedly, the HA partner replays the mirrored NVRAM data to protect active write operations.
2. When the Node Loses Power:
* A. after triggering a sync core:
* Triggering a sync core does not involve NVRAM replay; it captures the system state for debugging.
* B. when a node is halted:
* Halting a node does not trigger NVRAM replay unless it is part of a negotiated takeover.
Why Other Options Are Incorrect:
* "ONTAP High Availability Guide" explains NVRAM mirroring and replay during failover scenarios.
References:
NEW QUESTION # 27
During an ONTAP upgrade, nodeA1 fails to boot. You notice that it is loading the previous version of ONTAP software. What step can be taken to boot the node successfully?
Answer: C
Explanation:
When a node fails to boot and loads the previous version of ONTAP, it usually indicates that the primary boot location is incorrect. To resolve this:
* Enter the LOADER Prompt:
* Interrupt the boot process to access the LOADER prompt.
* Set the Primary Kernel URL:
* Use the following command:
Steps to Boot the Correct ONTAP Version:setenv GX_PRIMARY_KERNEL_URL
<URL_to_correct_ONTAP_version>
* Boot the Node:
* Run the boot command to load the correct version.
* B. From the loader prompt of nodeA1, run boot_backup:
* Booting the backup image may result in an outdated version of ONTAP, not the desired version.
* C. From the clustershell of the partner, run system node image modify:
* Modifications to the ONTAP image must be done from the LOADER prompt, not the clustershell.
* D. From the clustershell of nodeA1, run system node image modify:
* NodeA1 cannot load ONTAP, so this command cannot be run.
Why Other Options Are Incorrect:
* "ONTAP System Boot Guide" explains how to resolve boot issues using the LOADER prompt.
* NetApp documentation on environment variables includes the use of GX_PRIMARY_KERNEL_URL.
References:
NEW QUESTION # 28
Which two scenarios are common causes of the root volume needing root volume recovery? (Choose two.)
Answer: B,D
Explanation:
* If the root volume runs out of space, it can cause operational issues and require recovery.
* The root volume must always have sufficient space for system logs, configuration files, and core dumps.
1. Root Volume Ran Out of Space:
* When a mainboard is replaced, the system configuration stored in the root volume may need to be restored or recovered.
2. Mainboard Was Replaced Following an NMI Panic:
* C. Root volume migrate was performed:
* Root volume migration is a normal operation and does not typically cause the need for root volume recovery.
* D. The cluster configuration is out of sync on the volume:
* While this can cause configuration issues, it does not directly lead to root volume recovery.
Why Other Options Are Incorrect:
* "ONTAP Root Volume Management Guide" explains scenarios leading to root volume issues and recovery procedures.
References:
NEW QUESTION # 29
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