The storage stanza configures the storage backend, which represents the location for the durable storage of Vault's information. Each backend has pros, cons, advantages, and trade-offs. For example, some backends support high availability while others provide a more robust backup and restoration process.
Here's a quick overview of vault storage backends.
| Support | High Availability | ||
| Aerospike | Community | No HA Support | |
| Azure | Community | No HA Support | |
| Cassandra | Community | No HA Support | |
| CockroachDB | Community | No HA Support | |
| Consul | Officially Supported | Supports HA | |
| CouchDB | Community | No HA Support | |
| DynamoDB | Community | Supports HA | |
| Etcd | Community | Supports HA | |
| Filesystem | Officially Supported | No HA Support | |
| FoundationDB | Community | Supports HA | |
| Google Cloud Spanner | Community | Supports HA | |
| Google Cloud Storage | Community | Supports HA | |
| In-Memory | Officially Supported | No HA Support | |
| Manta | Community | No HA Support | |
| MSSQL | Community | No HA Support | |
| MySQL | Community | Supports HA | |
| OCI Object Storage | Community | Supports HA | |
| PostgreSQL | Community | Supports HA (9.5+) | |
| Integrated Storage (Raft) | Officially Supported | Supports HA | |
| S3 | Community | No HA Support | |
| Swift | Community | No HA Support | |
| Zookeeper | Community | Supports HA |