Network_Appliance
NS0-157 · Question #94
NS0-157 Question #94: Real Exam Question with Answer & Explanation
The correct answer is B: 3. RAID-DP requires two dedicated parity disks plus at least one data disk, making the minimum aggregate size three disks.
Storage Provisioning and Management
Question
What is the minimum number of disks in a non-root aggregate with RAID-DP?
Options
- A2
- B3
- C5
- D8
- E12
Explanation
RAID-DP requires two dedicated parity disks plus at least one data disk, making the minimum aggregate size three disks.
Common mistakes.
- A. Two disks cannot satisfy RAID-DP's requirement for two dedicated parity disks plus at least one data disk.
- C. Five disks exceeds the minimum and reflects a common default or recommended group size, not the absolute minimum.
- D. Eight disks is a larger group size sometimes used for performance but is not the minimum requirement.
- E. Twelve disks is a typical default RAID group size in ONTAP but far exceeds the minimum of three.
Concept tested. RAID-DP minimum disk count requirements
Reference. https://docs.netapp.com/us-en/ontap/disks-aggregates/raid-dp-overview-concept.html
Topics
#RAID-DP#aggregate#minimum disks#RAID groups
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