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Network Appliance NS0-093 (NetApp Accredited Hardware Support Engineer) Certification Exam is a comprehensive exam designed to assess the knowledge and skills of IT professionals in the installation, configuration, and support of NetApp hardware products. NetApp Accredited Hardware Support Engineer certification is ideal for hardware support engineers, system administrators, and IT professionals who are responsible for maintaining and troubleshooting NetApp storage systems.
NEW QUESTION # 56
Which two statements are correct when describing L1 and L2 Watch Dog Resets (WDR)? (Choose two.)
Answer: B,D
Explanation:
* Description:
* L1 WDR is a hardware-initiated reset that occurs when the system detects an unrecoverable error or lockup lasting 0.5 seconds.
* Key Characteristics:
* It performs a hard reset, meaning the system immediately reboots without creating a core dump.
1. L1 Watchdog Reset (WDR):
* Description:
* L2 WDR is initiated when the system fails to recover from a critical fault after 2 seconds.
* Key Characteristics:
* It requests a core dump to capture the system state for diagnostic purposes before performing a reset.
2. L2 Watchdog Reset (WDR):
* B. L1 WDR is initiated after 0.5 seconds from the event:
* This is incorrect because L1 WDR performs a hard reset and does not initiate after 2 seconds.
* C. L1 WDR performs a soft reset:
* This is incorrect because L1 WDR performs a hard reset, not a soft reset.
Why Other Options Are Incorrect:
* "ONTAP Panic Analysis Guide" describes the behavior and timing of L1 and L2 WDR events.
* NetApp Support documentation on system resets explains the differences between L1 and L2 watchdog resets.
References:
NEW QUESTION # 57
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: B
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 # 58
What is the default amount of time that a volume is available for recovery from the volume recovery queue following a volume deletion?
Answer: A
Explanation:
When a volume is deleted in a NetApp ONTAP system, it is placed in the Volume Recovery Queue. By default, the volume remains in this recovery queue for 12 hours before being permanently deleted. This allows administrators to recover mistakenly deleted volumes within the set retention period.
Explanation of Default Behavior:
* Volume Recovery Queue:
* This is a feature in NetApp ONTAP that acts as a safety mechanism, providing a grace period for recovering deleted volumes.
* The default retention period for volumes in the recovery queue is 12 hours, as confirmed by the NetApp KB: "How to use the Volume Recovery Queue."
* How to Recover a Deleted Volume:
* Administrators can recover a deleted volume as long as it remains in the recovery queue and the retention period has not expired.
* Use the ONTAP CLI command:
arduino
Copy code
cluster::> volume recovery-queue recover -vserver <vserver_name> -volume <volume_name>
* This command restores the volume back to its original state.
* How to Check the Volume Recovery Queue:
* To view volumes in the recovery queue and their expiration times, use:
arduino
Copy code
cluster::> volume recovery-queue show
* Changing the Default Retention Period:
* While the default period is 12 hours, it can be adjusted by administrators to fit specific organizational requirements. This is done via system settings or policies.
Why the Other Options Are Incorrect:
* B. 48 hours: Incorrect. The default retention period is not 48 hours; it is 12 hours by default.
* C. 72 hours: Incorrect. While a custom configuration could allow this, it is not the default.
* D. 24 hours: Incorrect. Although this was previously thought to be the default, NetApp documentation explicitly states it is 12 hours.
References:
* NetApp Knowledge Base Article: "How to use the Volume Recovery Queue".
* NetApp ONTAP Documentation: Volume Recovery and Data Management Procedures.
NEW QUESTION # 59
You are reviewing the output of disk show and one of the disks is reporting a container type of "unknown".
What is causing this status?
Answer: C
Explanation:
Understanding "Container Type: Unknown" in Disk Show Output:
* The "unknown" container type typically indicates that the disk is not properly configured or recognized by ONTAP.
* This status often occurs when a disk does not have an owner assigned.
Root Cause:
* For a disk to be used in an ONTAP system, it must be owned by a member of the high-availability (HA) pair.
* If no ownership is assigned, the disk will not be initialized, resulting in an "unknown" container type.
Steps to Resolve:
* Use the disk assign command to manually assign ownership of the disk.
* Example: storage disk assign -disk <disk_name> -owner <node_name>
NetApp Reference Documentation:
* "ONTAP Disk Management Guide" explicitly states that unowned disks report "unknown" container type until they are assigned to a node.
* This is further detailed in the "ONTAP Troubleshooting Guide" under disk configuration issues.
NEW QUESTION # 60
While performing a health check on a cluster, you notice the following entries in the cluster event log:
Referring to the exhibit, which of the following actions do you take?
Answer: A
Explanation:
Analyzing the Error in the Event Log:
* The log entry indicates a medium error on a disk, suggesting an unrecoverable read issue.
* While the RAID subsystem attempts to reconstruct unreadable data, this error might indicate a firmware issue or a compatibility problem with the disk.
Why Reviewing Firmware and Known Issues Is Important:
* Medium errors can sometimes result from outdated or incompatible firmware.
* By reviewing firmware release notes and known issues for the disk model (NETAPP X381_HLBRE10TSDB in this case), you can identify if this is a known issue and resolve it by updating the firmware.
Other Options:
* Sanitize the disk (Option A): Not relevant here, as sanitization is used for secure data erasure.
* Reseat the disk (Option B): Useful for addressing hardware seating issues, but not the first step here.
* Diskcopy to a spare (Option D): This is a last-resort recovery step and not the primary action.
NetApp Reference Documentation:
* "ONTAP Disk Management Guide" and "Disk Firmware Release Notes" detail how to handle medium errors and update firmware.
NEW QUESTION # 61
......
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