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NS0-184 Exam - Question 22


You have a new 2-node FAS8700 ONTAP 9.8 cluster. One of the nodes has 24x16 TB NL-SAS disks assigned and available for a new aggregate. You created the aggregate with one RAID group and two spare disks.

In this scenario, how many data drives are in the aggregate?

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Correct Answer: D

To determine the number of data drives in the new aggregate, we need to account for the number of spare and parity disks given the type of RAID used. In this scenario, the drives are NL-SAS 16TB, which only supports RAID-TEC. RAID-TEC requires three parity disks. Out of the 24 available disks, you have two designated as spare disks, leaving 22 disks to be used in the aggregate. From these 22 disks, three are used as parity disks, leaving 19 disks available for data storage. Thus, the number of data drives in the aggregate is 19.

Discussion

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HangLiuOption: D
Feb 10, 2023

Should be D. After Ontap 9 , disk larger than 6TB and more than 7 drives are required to use RAID-tec ,which contains 3 parities https://docs.netapp.com/us-en/ontap/disks-aggregates/default-raid-policies-aggregates-concept.html

scanossaOption: D
Jul 3, 2023

NL-SAS 16TB only supports RAID-TEC, so 24 disck - 3 Parity - 2 Spare = 19 Data disk

mppcood5
Jul 4, 2023

Thank you for your kind response. I understand now.

orcunOption: D
Jul 21, 2023

raiddp 2 disk ,raidtec 3 disks as parity. since its 16tb , it will use 3 parity disks. 24-2=22 disks used 22-3=19 data disks

mppcood5Option: C
Jul 3, 2023

Should be B The FAS8700 NL-SAS 16TB only supports RAID-TEC. The minimum number of RAID-TEC is 7. 24-7=17. https://hwu.netapp.com/Home/Index

mppcood5Option: B
Jul 3, 2023

Should be B The FAS8700 NL-SAS 16TB only supports RAID-TEC. The minimum number of RAID-TEC is 7. 24-7=17. https://hwu.netapp.com/Home/Index

ec9ab55Option: D
Nov 28, 2023

16TB can only use RAID-TEC which uses 3 parity disks. 24 Disks - 2 Spares - 3 Parity = 19 data disks