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Exam NS0-184 topic 1 question 10 discussion

Actual exam question from Netapp's NS0-184
Question #: 10
Topic #: 1
[All NS0-184 Questions]

Your customer currently has a 4-node AFF A400 cluster that runs ONTAP 9.8, with two NS224 shelves that are connected to each HA pair. The customer needs to add additional capacity to the cluster.
Which two actions would enable the customer to accomplish this task? (Choose two.)

  • A. Connect the new NS224 shelves to the existing NS224 shelves and adjust the shelf IDs.
  • B. Connect the new NS224 shelves to the existing Cisco Nexus 3232C switches.
  • C. Deploy a new AFF A400 to the cluster.
  • D. Deploy new, dedicated, storage switches for the new NS224 shelves.
Show Suggested Answer Hide Answer
Suggested Answer: CD 🗳️
by HangLiu at Jan. 31, 2023, 9:21 a.m.

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whoop
Highly Voted 9 months ago
Selected Answer: CD
Max NS224 shelves is 4, but max stack size is 1. Also, max number of direct attached NS224 shelves on the A400 is 2. Any more than that would have to be switch attached. Option A is definitely wrong because you can't daisy chain the shelves. Option B is ambiguous because it doesn't specify whether the existing 3232C switches are dedicated switches for the existing two NS224C shelves, or are the cluster switches. If they are dedicated storage switches the new shelves could be attached to them. If they are the cluster switches, they cannot be (in ONTAP 9.8). Option C is correct. Option D could be correct if the existing two shelves are directly connected. So options B, C, and D could all be correct, but I'm going to guess they want you to choose CD.
upvoted 6 times
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Sakiene
Most Recent 1 month, 2 weeks ago
Selected Answer: CD
A400 can Maximum two NS224 shelfs direct attached. A is wrong. B is wrong, because current no switch is needed for the two shelfs. Only C+D make sense
upvoted 1 times
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Wario9921
5 months, 3 weeks ago
Selected Answer: CD
I agree with whoop, NS224 shelves is not stackeable, A is wrong. We can consider that these 3232C Switches are cluster switches for 4 nodes AFF A400, option B is incorrect. C and D make me sense if you read the following documentation about NS224 shelves: https://library.netapp.com/ecm/ecm_download_file/ECMLP2876580
upvoted 4 times
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scanossa
8 months, 2 weeks ago
Selected Answer: BC
whoop is fine, but D is incorrect because the storage switch is not a dedicated switch, is shared for all shelves
upvoted 2 times
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Eiri_F
9 months, 1 week ago
Selected Answer: AC
Max Number of NS224 for AFF A400 HA with ONTAP 9.8 is 4. So we can add them without switch. https://hwu.netapp.com/Resources/generatedPDFs/9.8P7_ONTAP-FAS-AFF.pdf?tag=8010 So A and C are ok with the answer. https://docs.netapp.com/us-en/ontap-systems/a400/install-detailed-guide.html#option-2-cable-the-controllers-to-two-drive-shelves Also for detailed cabling.
upvoted 3 times
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naeng2018
1 year, 1 month ago
Maximum shelves for an A400 is 2. Prior to 9.9.1 we need a dedicated storage switch for the shelves. Only option for this situation is C and D. https://library.netapp.com/ecm/ecm_download_file/ECMLP2876580
upvoted 3 times
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HangLiu
1 year, 1 month ago
Selected Answer: AC
https://docs.netapp.com/us-en/ontap-systems/ns224/hot-add-shelf.html#requirements-for-a-hot-add
upvoted 3 times
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