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| Section | Objectives |
|---|---|
| Topic 1: Data Protection | - Protection Concepts
|
| Topic 2: ONTAP OS | - Core OS Concepts
|
| Topic 3: NetApp Cloud Data Services | - Cloud Service Components
|
| Topic 4: Troubleshooting NetApp Hardware and Software | - Troubleshooting Techniques
|
| Topic 5: NetApp Hardware | - Hardware Components and Replacement
|
| Topic 6: Active IQ | - Active IQ Usage
|
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48. Frage
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?
Antwort: C
Begründung:
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* Booting the backup image may result in an outdated version of ONTAP, not the desired version.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:
References: "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 .
49. Frage
Which two statements are true about an IOM 12 module? (Choose two.)
Antwort: A,D
Begründung:
Overview of IOM 12 Module:
The IOM 12 module is used in NetApp storage shelves for SAS connectivity.
Key Features of IOM 12:
SAS Ports: The IOM 12 module has four SAS ports (two IN and two OUT) to support daisy- chaining of shelves and provide redundancy.
ACP (Alternate Control Path): The IOM 12 includes an Ethernet port for ACP, which is used for out-of- band management and monitoring of the storage shelves.
50. Frage
How do you set environment variables to factory settings?
Antwort: A
Begründung:
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:
References: NetApp "System Configuration Guide" confirms the use of set-defaults for restoring environment variables to factory settings.
51. Frage
What are two valid options for uploading a core file from a node that is running ONTAP 9.12.1 software to NetApp for analysis? (Choose two.)
Antwort: B,D
Begründung:
Options for Uploading Core Files :
* Core files are diagnostic dumps created during system failures for analysis by NetApp Support.
* They can be uploaded via multiple methods, depending on system configuration and access:
Option B (CIFS Download) :
* Core files can be downloaded from the node using a CIFS share and then manually uploaded to upload.
netapp.com .
* This method is useful if automated processes are unavailable or connectivity is limited.
Option D (Autosupport Invoke-Core-Upload) :
* The command system node autosupport invoke-core-upload automates the process of uploading the core file to NetApp.
* It uses the configured Autosupport mechanism to transfer the file to NetApp Support for analysis.
NetApp Reference Documentation :
* "ONTAP Autosupport Guide" and "ONTAP Troubleshooting Guide" provide instructions for manually and automatically uploading core files.
52. Frage
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
Antwort: B,C
Begründung:
To analyze the provided panic error, the two sections of AutoSupport that are essential for investigation are:
1. HA-RASTRACE.TGZ
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.
2. SSRAM-LOG
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.
53. Frage
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