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Free NS0-093 Exam Braindumps (page: 4)

Page 3 of 17
PDF with 61 Questions

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?

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

Answer(s): 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.

Steps to Enable the External USB Port:
Reboot the system and interrupt the boot process to access the bootloader prompt.
At the bootloader prompt, use the following command:

arduino
Copy code setenv usbport_enabled true
Save the configuration and proceed with the boot process.

Why Other Options Are Incorrect:
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.


Reference:

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.



Which type of core file is generated when a node panics?

  1. mgwd core
  2. user space core
  3. sync core
  4. kernel core

Answer(s): D

Explanation:

When a node panics in ONTAP, a kernel core file is generated. This core file contains information about the kernel's state at the time of the panic and is essential for debugging system crashes.

Key Details:
A kernel core file is produced during a node panic to capture information about the kernel, memory, and processes that led to the crash.
The core file is stored on the root aggregate by default and can be uploaded to NetApp Support using the autosupport invoke-core-upload command.

Why Other Options Are Incorrect:
A . mgwd core:
This is related to the Management Gateway daemon, which handles management traffic. It does not generate a core file during a panic.
B . user space core:
User space cores are generated for processes running in user space, not for kernel panics.

C . sync core:
Sync cores refer to synchronized cores for debugging but are not the primary type generated during a node panic.


Reference:

"ONTAP Panic Troubleshooting Guide" specifies kernel core files as the output of a node panic. "ONTAP Core File Management Guide" details the handling of kernel core files after a crash.



When you plan an ONTAP upgrade, which NetApp tool generates a detailed upgrade plan?

  1. ONTAP System Manager
  2. Active IQ Unified Manager
  3. Upgrade Advisor
  4. Active IQ Config Avisor

Answer(s): C

Explanation:

The Upgrade Advisor is a NetApp tool that generates a detailed, step-by-step plan for upgrading an ONTAP system. This tool is available through the Active IQ portal and helps ensure a smooth and risk- free upgrade process.

Key Features of Upgrade Advisor:
Provides a tailored upgrade plan based on the current ONTAP version, cluster configuration, and desired target version.
Identifies potential risks, compatibility issues, and pre-requisite tasks for the upgrade. Offers detailed instructions for each stage of the upgrade process.

Why Other Options Are Incorrect:
A . ONTAP System Manager:
While System Manager can be used to initiate upgrades, it does not generate a detailed upgrade plan.
B . Active IQ Unified Manager:
Unified Manager focuses on monitoring and management but does not provide upgrade plans.

D . Active IQ Config Advisor:
Config Advisor checks for best practices and configuration issues but is not used for generating upgrade plans.


Reference:

NetApp's "ONTAP Upgrade Guide" emphasizes the use of Upgrade Advisor for planning upgrades. Active IQ documentation provides detailed instructions on accessing and using the Upgrade Advisor tool.



Which of the following scenarios could result in a NetApp WAFL inconsistency in a RAID DP aggregate?

  1. two disks failing and a block error during reconstruction
  2. rebooting a node during a disk reconstruction
  3. two disks failing within seconds of each other
  4. both party disks failing

Answer(s): A

Explanation:

A NetApp WAFL (Write Anywhere File Layout) inconsistency in a RAID-DP aggregate could occur in the following scenarios:

1. Two disks failing and a block error during reconstruction Why this causes inconsistency:
RAID-DP is designed to handle up to two concurrent disk failures. However, if a block error occurs during the reconstruction process (e.g., unreadable data on the surviving disks), the RAID group cannot rebuild the lost data, leading to WAFL inconsistencies.

2. Two disks failing within seconds of each other
Why this causes inconsistency:
If two disks in the same RAID group fail nearly simultaneously (before the RAID-DP can reconstruct data from the first failed disk), the system cannot recover the data, resulting in WAFL inconsistencies.

Why Other Options Are Incorrect:
B . rebooting a node during a disk reconstruction:
Rebooting a node does not cause WAFL inconsistency because ONTAP ensures that RAID reconstructions resume upon reboot without data loss.
D . both party disks failing:
This is not a valid RAID-DP term.


Reference:

"WAFL and RAID-DP Operations Guide" explains failure scenarios that could cause inconsistencies. NetApp's "Troubleshooting RAID Groups and Aggregates" covers recovery procedures for double-disk failures and reconstruction errors.






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