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Free NS0-093 Exam Braindumps (page: 5)

Page 4 of 17
PDF with 61 Questions

Which two tools can be used to recover an inconsistent aggregate? (Choose two.)

  1. file check
  2. wafl_check
  3. wafl snapiron
  4. wafliron

Answer(s): B,D

Explanation:

To recover an inconsistent aggregate, the following tools can be used:

1. wafl_check
What it does:
This tool is used to perform a consistency check on WAFL metadata. It identifies and attempts to fix WAFL inconsistencies in aggregates.
When to use:
Run wafl_check after identifying WAFL inconsistencies to repair minor metadata issues.

2. wafliron
What it does:
This tool repairs WAFL inconsistencies by reconstructing metadata. It is more powerful than wafl_check and should only be run under NetApp Support guidance, as improper use can result in data loss.
When to use:
Use wafliron for severe WAFL inconsistencies that cannot be resolved by wafl_check.

Why Other Options Are Incorrect:
A . file check:
This is not a valid NetApp tool.
C . wafl snapiron:
While similar in name, snapiron is used for snapshot recovery, not aggregate recovery.


Reference:

"ONTAP Aggregate Troubleshooting Guide" details the usage of wafl_check and wafliron. NetApp Support documentation provides guidelines for recovering inconsistent aggregates.



Which two tools can you use to invoke AutoSupport? (Choose two.)

  1. NetApp Cloud Insights
  2. CLI
  3. the NetApp Active IQ website
  4. the SmartSolve tool

Answer(s): B,C

Explanation:

To invoke AutoSupport in ONTAP, the following tools can be used:

1. CLI (Command Line Interface)
How to use:
Run the command:

python
Copy code autosupport invoke -node <nodename> -type all
This triggers AutoSupport to collect and send logs and system information.

2. NetApp Active IQ website
How to use:
Log in to the Active IQ portal and use its interface to request an AutoSupport message from the connected ONTAP systems.

Why Other Options Are Incorrect:
A . NetApp Cloud Insights:
This tool is used for monitoring and performance analysis, not for triggering AutoSupport messages.
D . the SmartSolve tool:
SmartSolve is used for case resolution guidance but does not invoke AutoSupport.


Reference:

"ONTAP AutoSupport Guide" provides instructions for invoking AutoSupport via CLI and Active IQ.



A node has panicked with a PCI/NMI error. Giveback has not been performed.
Which two commands should you run to collect the logs to determine the cause? (Choose two.)

  1. pelog ­a ­g=2
  2. show pci ­v
  3. rdfile /mroot/etc/log/SSRAM
  4. event log show

Answer(s): A,C

Explanation:

To diagnose a PCI/NMI error and collect logs, use the following commands:

1. pelog ­a ­g=2

What it does:
This command collects PCI error logs, including detailed information about PCI devices and the errors that caused the panic.
How to use:
Run the command from the nodeshell to capture the required PCI log entries.

2. rdfile /mroot/etc/log/SSRAM
What it does:
This command reads the SSRAM log file, which contains low-level error information related to PCI and other hardware subsystems.
How to use:
Run the command to view the log entries directly for detailed troubleshooting.

Why Other Options Are Incorrect:
B . show pci ­v:
While this command displays PCI device information, it does not provide detailed error logs.
D . event log show:
This displays event log entries but does not contain the specific PCI or NMI-related logs required for diagnosing the panic.


Reference:

"ONTAP Hardware Troubleshooting Guide" lists pelog and SSRAM as tools for analyzing PCI errors. "ONTAP Panic Analysis Guide" emphasizes the importance of collecting detailed hardware logs.



Which two steps are required to replace a drawer in a DS460c shelf? (Choose two.)

  1. Shut down both nodes.
  2. Disconnect the cable chains from the chassis.
  3. Power off the shelf.
  4. Evacuate all drives in the drawer.

Answer(s): B,D

Explanation:

To replace a drawer in a DS460c shelf, the following steps must be taken:

1. Disconnect the cable chains from the chassis
Why this is required:
Cable chains connect the drawer to the shelf and must be disconnected to safely remove the drawer.

2. Evacuate all drives in the drawer
Why this is required:
Drives must be removed to avoid damage during the drawer replacement process and to reduce the weight of the drawer for safe handling.

Why Other Options Are Incorrect:

A . Shut down both nodes:
This is unnecessary because DS460c shelves support online replacement, and the system can remain operational.
C . Power off the shelf:
This is also unnecessary. DS460c shelves are hot-swappable, meaning they do not require the shelf to be powered down.


Reference:

"DS460c Hardware Service Guide" explains the procedure for replacing a drawer. NetApp's "Field Replacement Guide" for DS460c shelves emphasizes online and hot-swappable replacements.






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