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| Section | Objectives |
|---|---|
| ONTAP OS | - Core OS Concepts
|
| Active IQ | - Active IQ Usage
|
| NetApp Cloud Data Services | - Cloud Service Components
|
| NetApp Hardware | - Hardware Components and Replacement
|
| Troubleshooting NetApp Hardware and Software | - Troubleshooting Techniques
|
| Data Protection | - Protection Concepts
|
>> New Network Appliance NS0-094 Test Notes <<
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NEW QUESTION # 75
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: A,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 # 76
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.)
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
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
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.
NEW QUESTION # 77
Which two commands confirm whether an aggregate is WAFL inconsistent? (Choose two.)
Answer: B,C
Explanation:
To determine whether an aggregate is WAFL (Write Anywhere File Layout) inconsistent, the following two commands can be used:
1. wafiron show <aggregate>
What it does:
This command directly checks the WAFL consistency status of the specified aggregate. If an aggregate is WAFL inconsistent, it will report the inconsistency in the output.
How to use:
Run the command: wafiron show <aggregate> (replace <aggregate> with the name of the aggregate). Look for indications of WAFL inconsistency in the output.
Why it's relevant:
The wafiron utility is specifically designed to provide WAFL status and diagnostics. It is the most accurate and direct way to confirm whether an aggregate is inconsistent.
2. node run -node <node> sysconfig -r
What it does:
This command displays RAID information for all aggregates on the specified node. If an aggregate is WAFL inconsistent, it will be explicitly mentioned in the output.
How to use:
Run the command: node run -node <node> sysconfig -r.
Check the output for the phrase "WAFL inconsistent" under the corresponding aggregate.
Why it's relevant:
This command provides additional context, such as the RAID group details, which can help understand whether the inconsistency is isolated or part of a larger issue.
NEW QUESTION # 78
A customer has one large aggregate over several shelves, and only one shelf has reached End of Support (EoS) and needs to be evacuated. The installation engineer already added a new shelf and assigned the disks with same type and size. Which NetApp ONTAP command is used to copy the data from disk to disk?
Answer: A
Explanation:
The storage disk replace command copies data from a source disk to a replacement disk, allowing disks from the EoS shelf to be evacuated nondisruptively while preserving the aggregate.
NEW QUESTION # 79
When you add a new disk to an ONTAP 9.1 system, you see an error that the disk "has raid label with version (16), which is not within the currently supported range (14-15)." What is one possible cause of this error?
Answer: D
Explanation:
Explanation of RAID Label Versions:
Disks in ONTAP systems contain metadata known as RAID labels. These labels store critical information such as ownership, aggregate membership, and versioning.
The error indicates a mismatch between the RAID label version on the disk and the supported versions of the ONTAP system.
Why Option D Is Correct:
If a disk has a RAID label created by a newer version of ONTAP (e.g., version 16) and is then inserted into a system running an older version of ONTAP (e.g., supporting versions 14-15), the label will not be recognized.
This mismatch causes ONTAP to reject the disk.
Resolution:
Upgrade the ONTAP version to match the RAID label on the disk.
Alternatively, zero the disk to reset its RAID label, but this will erase all data on the disk.
NEW QUESTION # 80
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