In Instana Standard Edition, which statement is true about the migration from a single-node deployment to a multi-node deployment?

According to the official IBM Instana documentation, the migration path from a single-node to a multi-node deployment is only supported for "production" type installations. The "demo" installation type, which is intended for trial or non-production environments and uses an embedded database, is explicitly excluded from this migration path. This limitation is in place because the architecture and data storage of a demo installation are not suitable for scaling into a distributed, multi-node production environment.

B. This is incorrect. The documented procedure is specifically designed to convert a single-node production deployment into a multi-node deployment.

C. This is incorrect. The official documentation explicitly states that a single-node production cluster can be migrated to a multi-node cluster.

D. This is incorrect. Instana multi-node deployments support more than two nodes. High-availability setups for components like Cassandra or Zookeeper often require three or five nodes.

1. IBM Documentation for Instana Observability on-premises 271: In the section "Migrating from a single-node to a multi-node installation," the documentation states, "Migration of single-node demo installation type clusters is not supported." This directly supports the correct answer, A. It also implicitly refutes options B and C by describing the process for production clusters.

2. IBM Documentation for Instana Observability on-premises 271: The section "Setting up multi-node environments" details configurations with multiple nodes for backend components (e.g., a 3-node Cassandra cluster), which refutes the claim in option D that only two nodes are supported.