Which RAID level is supported in NetApp Cloud Volumes ONTAP?

The supported RAID level in NetApp Cloud Volumes ONTAP is RAID DP. This RAID configuration is a highly reliable storage option that offers double parity and is designed to provide protection against disk failures while also ensuring high availability of data. It allows for the recovery of data even in the case of two simultaneous drive failures, which is particularly beneficial in cloud environments where data durability and integrity are critical.

RAID DP achieves this increased fault tolerance by using two parity blocks for every set of data blocks, rather than a single parity block used in traditional RAID levels. This feature makes it suitable for enterprise applications and workloads where data loss is unacceptable.

The mention of other RAID levels like RAID-TEC, RAID 4, and RAID 0 highlights their unique characteristics and applications, which may not align with the needs of all cloud implementations. For instance, RAID-TEC, which is a triple parity configuration, would not be the primary choice for Cloud Volumes ONTAP. Meanwhile, RAID 4 and RAID 0 have specific limitations regarding fault tolerance and redundancy that make them less desirable for mission-critical applications in a cloud environment. Hence, RAID DP is the optimal choice that balances performance, data protection, and efficiency.