To protect a Nutanix Objects store from a single node or two-drive failure, the cluster must be comprised of aminimum of seven nodes. Nutanix Objects uses erasure coding to provide resiliency, distributing data and parity fragments across nodes to ensure fault tolerance. To withstand a single node failure or a two-drive failure, a specific number of nodes is required to maintain data availability and rebuild capability.

TheNutanix Unified Storage Administration (NUSA)course states, “Nutanix Objects requires a minimum of seven nodes to ensure resiliency against a single node failure or a two-drive failure, using erasure coding to distribute data and parity across the cluster.” This configuration typically uses an erasure coding scheme like 4+2 or 5+2 (data + parity fragments), which requires at least six nodes for data distribution and an additional node to handle failures, totaling seven nodes.

TheNutanix Certified Professional - Unified Storage (NCP-US)study guide further elaborates that “to achieve resiliency against a single node or two-drive failure in Nutanix Objects, the cluster must have at least seven nodes to support the erasure coding configuration needed for this level of fault tolerance.” This ensures that even if one node fails or two drives are lost, the remaining nodes have sufficient data and parity fragments to reconstruct the lost data.

The other options are incorrect:

Multi-cluster option must be disabled for the object store: The multi-cluster option is not relevant to resiliency within a single Nutanix Objects deployment. It pertains to managing multiple clusters, not erasure coding or fault tolerance.

Each node in the dense node platform requires 20 or more HDDs: There is no requirement for 20 or more HDDs per node to achieve this level of resiliency. Resiliency depends on the number of nodes and erasure coding, not the number of drives per node.

New storage container is created for the object store: While Nutanix Objects uses storage containers, creating a new container is not a requirement for enabling resiliency. Resiliency is determined by the cluster configuration and erasure coding settings.

The NUSA course documentation highlights that “a minimum of seven nodes ensures Nutanix Objects can maintain data availability and rebuild data in the event of a single node or two-drive failure, leveraging erasure coding for resiliency.”