Comprehensive and Detailed In-Depth Explanation:
Integrated Storage (Raft) offers several benefits over external storage backends. The Vault documentation states:
" Introduced in Vault 1.4, Integrated Storage is a built-in solution that provides a highly available, durable storage backend without relying on any external systems. All Vault data is stored locally on each node, and replicated to all other nodes in the cluster for high availability. It also reduces complexity since all configuration is done within Vault. "
— Vault Configuration: Raft Storage
" Eliminates the requirement to deploy and manage a separate platform for storing encrypted data. "
— Vault Configuration: Raft Storage
" Troubleshooting is simplified when using Integrated Storage because it is a built-in solution within Vault. "
— Vault Configuration: Raft Storage
" Reduces operational overhead by keeping all configuration and data storage within Vault itself. "
— Vault Configuration: Raft Storage
" Integrated Storage provides immediate access to stored data since it is stored locally on disk within Vault. "
— Vault Configuration: Raft Storage
" The Vault cluster nodes still need to communicate over port 8201 for replication and RPC forwarding. "
— Vault Configuration: Raft Storage
B : Incorrect; Raft uses the RAFT protocol, not SERF:
" Integrated Storage uses the same underlying consensus protocol (RAFT) as Consul to handle cluster leadership and log management. "
— Vault Configuration: Raft Storage
