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| Section | Objectives |
|---|---|
| ONTAP OS | - Core OS Concepts
|
| Troubleshooting NetApp Hardware and Software | - Troubleshooting Techniques
|
| Active IQ | - Active IQ Usage
|
| Data Protection | - Protection Concepts
|
| NetApp Hardware | - Hardware Components and Replacement
|
| NetApp Cloud Data Services | - Cloud Service Components
|
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NEW QUESTION # 72
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
Answer: B,D
Explanation:
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.
NEW QUESTION # 73
Which three commands can be used to manually generate a kernel core file? (Choose three.)
Answer: C,D,E
Explanation:
To manually generate a kernel core file in ONTAP, the following commands can be used:
1. ::> reboot -node <node_name> -dump true
What it does:
Reboots the specified node and generates a core dump before rebooting.
Example Usage:
reboot -node <node_name> -dump true
2. ::> halt -dump true -node <node_name>
What it does:
Halts the specified node and generates a core dump before shutting down.
Example Usage:
halt -dump true -node <node_name>
3. ::> system node panic -node <node_name>
What it does:
Forces a panic on the specified node, which triggers a kernel core dump.
Example Usage:
system node panic -node <node_name>
NEW QUESTION # 74
How do you set environment variables to factory settings?
Answer: A
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.
Key Details:
Command Syntax:
At the LOADER prompt, type:
arduino
Copy code
set-defaults
Effect:
This command resets all environment variables (e.g., boot arguments, diagnostic settings) to their original factory defaults.
NEW QUESTION # 75
An aggregate has experienced a multiple disk failure due to a failing I/O module (IOM). The module has been replaced and the aggregate is still failed. What step can be taken to recover the aggregate?
Answer: A
Explanation:
When an aggregate fails due to multiple disk failures caused by a faulty I/O module (IOM), the first step after replacing the faulty IOM is to manually unfail the affected drives. This process is done in maintenance mode.
Steps to Recover the Aggregate:
Enter Maintenance Mode:
Reboot the node and interrupt the boot process to access maintenance mode.
Identify Failed Drives:
Use the command:
sql
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storage show disk -broken
This command lists all failed (broken) drives.
Unfail the Drives:
Use the following command for each failed drive:
php
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disk unfail <disk-name>
Reconstruct the Aggregate:
Once all drives are unfail, the system should begin reconstructing the RAID groups in the aggregate.
NEW QUESTION # 76
In maintenance mode, which of the following commands shows disk ownership?
Answer: D
Explanation:
In maintenance mode, the command disk show -v provides detailed information about disk ownership. This includes the current owner, previous owner, and disk health status.
How to Use:
Enter maintenance mode, and run:
disk show -v
The output will display ownership information for each disk, including its RAID group and current assignment.
NEW QUESTION # 77
......
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