Does the cluster mode support three nodes?

[mzzgaopeng]

sudo tee /etc/default/rustfs <<EOF
RUSTFS_ACCESS_KEY=rustfsadmin
RUSTFS_SECRET_KEY=rustfsadmin
RUSTFS_VOLUMES="http://10.0.0.2:9200/data/rustfs http://10.0.0.3:9200/data/rustfs http://10.0.0.4:9200/data/rustfs"
RUSTFS_ADDRESS=":9200"
RUSTFS_CONSOLE_ADDRESS=":9201"
RUSTFS_CONSOLE_ENABLE=true
RUST_LOG=error
RUSTFS_OBS_LOG_DIRECTORY="/var/logs/rustfs/"
EOF

这种模式无法拉起集群模式吗

[mzzgaopeng]

[2026-02-03 17:36:49.612253 +08:00] ERROR [rustfs] [rustfs/src/main.rs:257] [main:ThreadId(1)] ECStore::new Io(Custom { kind: Other, error: "can not get formats" })

[2026-02-03 17:36:49.612334 +08:00] ERROR [rustfs] [rustfs/src/main.rs:138] [main:ThreadId(1)] Server encountered an error and is shutting down: can not get formats

[2026-02-03 17:36:49.612382 +08:00] ERROR [rustfs] [rustfs/src/main.rs:84] [main:ThreadId(1)] Server encountered an error and is shutting down: can not get formats

[2026-02-03 17:37:10.185029 +08:00] ERROR [s3s::ops] [/home/runner/.cargo/git/checkouts/s3s-5cf49da3e5499213/3cdb3fe/crates/s3s/src/ops/mod.rs:264] [rustfs-worker:ThreadId(10)] custom route returns error err=S3Error(Inner { code: AccessDenied, message: Some("Signature is required"), request_id: None, status_code: None, source: None, headers: None })

[2026-02-03 17:37:10.486120 +08:00] ERROR [s3s::ops] [/home/runner/.cargo/git/checkouts/s3s-5cf49da3e5499213/3cdb3fe/crates/s3s/src/ops/mod.rs:264] [rustfs-worker:ThreadId(10)] custom route returns error err=S3Error(Inner { code: AccessDenied, message: Some("Signature is required"), request_id: None, status_code: None, source: None, headers: None })

[2026-02-03 17:37:10.641621 +08:00] ERROR [s3s::ops] [/home/runner/.cargo/git/checkouts/s3s-5cf49da3e5499213/3cdb3fe/crates/s3s/src/ops/mod.rs:264] [rustfs-worker:ThreadId(10)] custom route returns error err=S3Error(Inner { code: AccessDenied, message: Some("Signature is required"), request_id: None, status_code: None, source: None, headers: None })

[2026-02-03 17:37:10.812066 +08:00] ERROR [s3s::ops] [/home/runner/.cargo/git/checkouts/s3s-5cf49da3e5499213/3cdb3fe/crates/s3s/src/ops/mod.rs:264] [rustfs-worker:ThreadId(10)] custom route returns error err=S3Error(Inner { code: AccessDenied, message: Some("Signature is required"), request_id: None, status_code: None, source: None, headers: None })

[2026-02-03 17:37:11.006375 +08:00] ERROR [s3s::ops] [/home/runner/.cargo/git/checkouts/s3s-5cf49da3e5499213/3cdb3fe/crates/s3s/src/ops/mod.rs:264] [rustfs-worker:ThreadId(10)] custom route returns error err=S3Error(Inner { code: AccessDenied, message: Some("Signature is required"), request_id: None, status_code: None, source: None, headers: None })

[2026-02-03 17:39:05.862352 +08:00] ERROR [rustfs] [rustfs/src/main.rs:257] [main:ThreadId(1)] ECStore::new Io(Custom { kind: Other, error: "can not get formats" })

[2026-02-03 17:39:05.862451 +08:00] ERROR [rustfs] [rustfs/src/main.rs:138] [main:ThreadId(1)] Server encountered an error and is shutting down: can not get formats

[2026-02-03 17:39:05.862521 +08:00] ERROR [rustfs] [rustfs/src/main.rs:84] [main:ThreadId(1)] Server encountered an error and is shutting down: can not get formats

[loverustfs]

Three nodes are acceptable, but the best practice is four nodes.

[loverustfs]

A minimum of 4 nodes is strongly recommended. A 3-node deployment typically follows the Ceph model with a default of 3 replicas.

Data utilization is 33%.