When creating a new 3.8 TB SSD-based aggregate on ONTAP 9.8, what is the default RAID type?

When creating a new 3.8 TB SSD-based aggregate on ONTAP 9.8, what is the default RAID type?

• A. RAID 5
• B. RAID DP
• C. RAID-TEC
• D. RAID 6

Answer: (B)

The thing being tested is how ONTAP chooses the protection scheme for a new SSD-based aggregate. For ONTAP 9.8, the default is RAID-DP, NetApp’s double-parity protection. This setup guards against two simultaneous disk failures within a single RAID group, providing solid data protection while balancing usable capacity and performance for typical SSD workloads. RAID-TEC offers triple parity and higher protection, but at greater parity overhead and reduced capacity, so it isn’t the default. Single-parity (RAID 5) would risk data loss if more than one disk failed, and RAID-6 is another double-parity option but not the default in ONTAP. So RAID-DP is the natural default choice.

The thing being tested is how ONTAP chooses the protection scheme for a new SSD-based aggregate. For ONTAP 9.8, the default is RAID-DP, NetApp’s double-parity protection. This setup guards against two simultaneous disk failures within a single RAID group, providing solid data protection while balancing usable capacity and performance for typical SSD workloads. RAID-TEC offers triple parity and higher protection, but at greater parity overhead and reduced capacity, so it isn’t the default. Single-parity (RAID 5) would risk data loss if more than one disk failed, and RAID-6 is another double-parity option but not the default in ONTAP. So RAID-DP is the natural default choice.