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The NS0-093 Certification Exam is a comprehensive exam that consists of multiple-choice questions, simulations, and other interactive question types. NS0-093 exam is designed to test the candidate's practical skills and knowledge related to NetApp hardware systems. NetApp Accredited Hardware Support Engineer certification is a great way to validate your skills and knowledge as a hardware support engineer and demonstrate your commitment to your profession.

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Network Appliance NetApp Accredited Hardware Support Engineer Sample Questions (Q56-Q61):

NEW QUESTION # 56
You are replacing a boot device on a FAS8300 system that is running ONTAP 9.10P6 software. You attach a USB memory stick to the external USB port on the storage controller but cannot access the memory stick.
What step needs to be performed to access the boot device?

A. Set the port to "enabled" with setenv.
B. The external USB port is not activated on NetApp systems.
C. You need to use ONTAP 9.11 or later software.
D. Add the boot device before the BIOS is loaded.

Answer: A

Explanation:
When replacing a boot device on a FAS8300 system and using a USB memory stick for recovery or installation, the external USB port must be explicitly enabled. This is done through the setenv command in the boot environment.
* Reboot the system and interrupt the boot process to access the bootloader prompt.
* At the bootloader prompt, use the following command:
Steps to Enable the External USB Port:arduino
Copy code
setenv usbport_enabled true
* Save the configuration and proceed with the boot process.
* B. You need to use ONTAP 9.11 or later software:
* ONTAP 9.10P6 fully supports external USB recovery. There is no need to upgrade to ONTAP
9.11 for this functionality.
* C. Add the boot device before the BIOS is loaded:
* While the USB device must be inserted during the boot process, this alone will not enable access unless the port is enabled via setenv.
* D. The external USB port is not activated on NetApp systems:
* This is incorrect. The external USB port is supported but must be explicitly enabled in the bootloader environment.
Why Other Options Are Incorrect:
* NetApp Hardware Installation Guide for FAS8300 systems outlines the steps for enabling the USB port during recovery.
* "ONTAP Boot Troubleshooting Guide" specifies the use of the setenv command to activate USB ports.
References:

NEW QUESTION # 57
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.)

A. Reinstall your boot media and install ONTAP 9.5 software.
B. Revert from ONTAP 9.7 software to ONTAP 9.6 software and then to ONTAP 9.5 software.
C. Wipe your config and restore from backup.
D. Delete all Snapshot copies from the past two days.

Answer: A,C

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 # 58
In a SAS stack of shelves, what is the topology of the connection between expander and disk?

A. point-to-point
B. ring
C. loop
D. arbritrated loop

Answer: A

Explanation:
In a SAS stack of shelves, the connection between the expander and the disk uses a point-to-point topology.
* Point-to-Point:
* Each SAS disk in a shelf connects directly to the expander using a dedicated channel. This ensures that communication between the disk and expander is independent of other disks, improving performance and reliability.
* Why SAS Uses Point-to-Point:
* SAS (Serial Attached SCSI) eliminates the shared bandwidth limitations of traditional bus architectures (e.g., arbitrated loop or ring) by dedicating a connection to each device.
Key Details:
* A. arbitrated loop:
* Arbitrated loop is a topology used in Fibre Channel systems, not SAS.
* C. loop:
* SAS does not use loop-based communication; this is typical of older technologies like SCSI Parallel Interface (SPI).
* D. ring:
* Ring topology is not used in SAS stacks.
Why Other Options Are Incorrect:
* "NetApp SAS Shelf and Disk Configuration Guide" specifies point-to-point communication between expanders and disks in SAS environments.
References:

NEW QUESTION # 59
What are two options to remove Failure Byte on disks that are marked as failed? (Choose two.)

A. Power cycle the disk shelf.
B. Update the disk firmware.
C. Reseat the disk.
D. Unfail the disk

Answer: C,D

Explanation:
If a disk is marked as failed, the Failure Byte on the disk indicates that the disk has been flagged for failure.
This can be cleared using the following methods:
* What it does:Physically remove the disk from the shelf and reseat it. This action can trigger the system to re-evaluate the disk's status and clear the Failure Byte if the failure was transient or due to connection issues.
1. Reseat the Disk
* What it does:Using the disk unfail command in maintenance mode clears the Failure Byte and returns the disk to service.
* Command Example:
2. Unfail the Diskdisk unfail <disk_name>
* A. Power cycle the disk shelf:
* Power cycling the shelf may clear other transient hardware issues but does not specifically clear the Failure Byte.
* C. Update the disk firmware:
* While updating firmware can prevent future issues, it does not address disks already marked as failed.
Why Other Options Are Incorrect:
* NetApp "Disk Maintenance Guide" explains procedures to address failed disks.
* The "ONTAP Command Reference" covers the disk unfail command for clearing the Failure Byte.
References:

NEW QUESTION # 60
In which two sections of AutoSupport can you find information to analyze the following panic? (Choose two.) Panic_Message: PCI Error NMI from device(s):ErrSrcID(CorrSrc(0xf00),UCorrSrc(0x18)), RPT(0,3,0):
Qlogic FC 16G adapter in slot 1 on Controller

A. SSRAM-LOG
B. ALL-COREDUMP.XML
C. PCI-HIERARCHY.XML
D. HA-RASTRACE.TGZ

Answer: A,D

Explanation:
To analyze the provided panic error, the two sections of AutoSupport that are essential for investigation are:
* What it is:HA-RASTRACE.TGZ contains HA (High Availability) system trace logs. It records hardware diagnostics, error traces, and the HA system's response to hardware events. These logs are critical when analyzing hardware-related panics, including those caused by PCI errors.
* Why it's relevant to the panic:In the given panic message, the NMI (Non-Maskable Interrupt) error originates from a Qlogic FC 16G adapter. HA-RASTRACE.TGZ will provide detailed diagnostics, including the error reporting from the HA interconnect and other hardware diagnostics. Specifically, it may include information about how the system detected the PCI fault and any actions taken to protect the system state.
* How to analyze:
* Extract the HA-RASTRACE.TGZ file from the AutoSupport bundle.
* Review hardware-related trace messages for entries associated with the PCI bus or the Qlogic FC adapter.
* Look for specific error codes or keywords like PCI Error, NMI, or Qlogic.
* References:
* NetApp's "AutoSupport Logs and Diagnostics Guide" highlights HA-RASTRACE.TGZ as a primary resource for debugging hardware faults.
* The "Panic Troubleshooting Guide" for ONTAP systems specifies HA-RASTRACE as a key source for identifying NMI-related errors.
1. HA-RASTRACE.TGZ
* What it is:SSRAM-LOG records low-level hardware error details, including PCI device register states and uncorrectable memory errors. It is particularly useful for analyzing errors originating in peripheral hardware like network or storage adapters connected via PCI.
* Why it's relevant to the panic:The panic message explicitly references a PCI Error NMI caused by a Qlogic FC adapter. SSRAM-LOG captures detailed state information for PCI devices, which can help identify whether the fault originated in the adapter hardware, the PCI bus, or another related component.
* How to analyze:
* Extract the SSRAM-LOG from the AutoSupport bundle.
* Search for PCI-related errors, including the specific error source IDs (e.g., ErrSrcID(CorrSrc (0xf00),UCorrSrc(0x18))).
* Review the log entries to confirm the root cause of the NMI.
* References:
* The "Hardware Diagnostics and Troubleshooting Guide for ONTAP" lists SSRAM-LOG as a key file for debugging PCI errors.
* NetApp's documentation on PCI diagnostics emphasizes the use of SSRAM-LOG for validating hardware-level faults.
2. SSRAM-LOG

NEW QUESTION # 61
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Alan Fisher Alan Fisher

Biography

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