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NetApp Exam NS0-593 Topic 4 Question 68 Discussion

Actual exam question for NetApp's NS0-593 exam
Question #: 68
Topic #: 4
[All NS0-593 Questions]

A system panic due to an "L2 watchdog timeout hard reset" error occurred. You have found a FIFO message in the SP log.

Which FIFO message Is useful for Investigating this Issue?

Show Suggested Answer Hide Answer
Suggested Answer: A

= The FIFO message before NMI is useful for investigating the issue because it shows the state of the system before the non-maskable interrupt (NMI) was triggered by the L2 watchdog timeout. The FIFO message contains information about the CPU registers, the stack pointer, the instruction pointer, and the last executed instructions. This can help identify the cause of the system hang or deadlock that led to the watchdog reset. The other FIFO messages are not useful because they show the state of the system after the reset or shutdown, which may not reflect the original problem.Reference=https://kb.netapp.com/onprem/ontap/hardware/Handling_L2_Watchdog_Resets_on_the_FAS8200_and_AFF_A300_platforms

https://docs.netapp.com/us-en/ontap-metrocluster/install-ip/task_sw_config_restore_defaults.html


by Glendora at Apr 05, 2025, 09:04 PM

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Janna
3 months ago
I'm not sure, but I think option B could also be helpful in this situation.
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Arlie
3 months ago
I wonder if the 'L2 watchdog' was just hungry and needed a snack. Maybe some FIFO bites would have kept it happy!
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Peggy
2 months ago
C) before Reset BBSP:C=00 L=00 FIFO:
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Glory
2 months ago
B) BIOS exit BBSP:C=2F L=20 FIFO: 2 C8 C9 C4 24 4 6 18 7 8 11
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Reid
2 months ago
A) before NMI BBSP:C=00 L=00 FIFO: F3 F2 F1 F0 5 B2 0 0 0 80 20 E F E3 C0 C2 3 4 6 7 9 9 A
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Huey
3 months ago
I agree with Rosendo, option A seems like the best choice for investigating the issue.
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Leana
3 months ago
The 'ONTAP Shutdown BBSP:C=00 L=2F FIFO:' message might be interesting, but it sounds more like a normal ONTAP shutdown rather than a panic.
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Octavio
3 months ago
Haha, the 'before Reset BBSP:C=00 L=00 FIFO:' message isn't much help. It's just an empty FIFO, not very informative.
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Bev
2 months ago
User 4: Good idea, let's see if we can find any clues in that FIFO message.
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Kara
3 months ago
User 3: Let's check out option A, it seems like it might have some relevant data.
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Arminda
3 months ago
User 2: I agree, we need to look at the other options for more useful information.
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Misty
3 months ago
User 1: Yeah, that message doesn't really tell us anything.
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Lilli
3 months ago
I'm not sure the 'BIOS exit BBSP:C=2F L=20 FIFO: 2 C8 C9 C4 24 4 6 18 7 8 11' message would be as useful. It seems more like a normal BIOS shutdown.
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Stephaine
4 months ago
The 'before NMI BBSP:C=00 L=00 FIFO: F3 F2 F1 F0 5 B2 0 0 0 80 20 E F E3 C0 C2 3 4 6 7 9 9 A' message looks the most relevant for investigating the L2 watchdog timeout issue.
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Carlota
3 months ago
User 2: Yeah, that message seems to have the most relevant information we need to investigate the L2 watchdog timeout error.
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Ivan
3 months ago
User 1: I think the 'before NMI BBSP:C=00 L=00 FIFO: F3 F2 F1 F0 5 B2 0 0 0 80 20 E F E3 C0 C2 3 4 6 7 9 9 A' message is the most relevant for investigating the issue.
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Rosendo
4 months ago
I think option A is useful because it shows the FIFO message before NMI.
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