the vast majority of deployments in any negative way.

> Will an upgrade of an existing MinIO cluster impact the SLA of the cluster or will it even cause downtime?

No, an upgrade should not cause any downtime. However, on the first startup -
since MinIO will attempt to migrate any existing IAM data - the boot process may
take slightly longer, but may not be visibly noticeable. Once the migration has

code you can lose as many as half of drives and still the data remains safe. Further, MinIO's erasure code is at the object level and can heal one object at a time. For RAID, healing can be done only at the volume level which translates into high downtime. As MinIO encodes each object individually, it can heal objects incrementally. Storage servers once deployed should not require drive replacement or healing for the lifetime of the server. MinIO's erasure coded backend is designed for operational...

CSR, certificates are written to disk and mTLS is used for future requests. If the VM restarted, it would continue
to use the certificates written to disk, assuming the downtime is less than certificate expiration. This is why
the certificates are persisted to disk, rather than kept in memory like in the standard Kubernetes deployment.

## Certificate Rotation

The Health Check controller additionally controls the health status of the `WorkloadEntry`. The health is reported over the XDS client and synced with the `WorkloadEntry`.

## Upgrading MinIO

Upgrades require zero downtime in MinIO, all upgrades are non-disruptive, all transactions on MinIO are atomic. So upgrading all the servers simultaneously is the recommended way to upgrade MinIO.

          "interval": "1m",
          "intervalFactor": 2,
          "legendFormat": "{{server,endpoint}}",
          "refId": "A"
        }
      ],
      "title": "Link Downtime Duration (sec)",
      "type": "timeseries"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "fieldConfig": {

| `minio_node_replication_link_offline_duration_seconds`  | Total duration of replication link being offline in seconds since last offline event                     |
| `minio_node_replication_link_downtime_duration_seconds` | Total downtime of replication link in seconds since server start                                         |

supports filesystems and Amazon S3 compatible cloud storage services. Follow the MinIO Client [Quickstart Guide](https://min.io/docs/minio/linux/reference/minio-mc.html#quickstart) for further instructions. ## Upgrading MinIO Upgrades require zero downtime in MinIO, all upgrades are non-disruptive, all transactions on MinIO are atomic. So upgrading all the servers simultaneously is the recommended way to upgrade MinIO. > NOTE: requires internet access to update directly from <https://dl.min.io>, optionally...

				VariableLabels: map[string]string{
					"endpoint": ep,
				},
			}
			dwntime := currDowntime
			if health.offlineDuration > currDowntime {
				dwntime = health.offlineDuration
			}
			downtimeDuration.Value = float64(dwntime / time.Second)
			ml = append(ml, downtimeDuration)

		}
		return ml
	})
	return mg
}

*   Termination grace period for the calico/node add-on DaemonSet has been eliminated, reducing downtime during a rolling upgrade or deletion. ([#55015](https://github.com/kubernetes/kubernetes/pull/55015),[ @fasaxc](https://github.com/fasaxc))