wResources := make([]string, 1000)
	rResources := make([]string, 1000)
	quorum := 0
	l := newLocker()
	ctx := t.Context()
	for i := range wResources {
		arg := dsync.LockArgs{
			UID:       mustGetUUID(),
			Resources: []string{mustGetUUID()},
			Source:    t.Name(),
			Owner:     "owner",
			Quorum:    &quorum,
		}
		ok, err := l.Lock(ctx, arg)
		if err != nil {
			t.Fatal(err)
		}
		if !ok {

// occurs >= quorum, else return timeSentinel
func commonTime(modTimes []time.Time, quorum int) time.Time {
	if modTime, count := commonTimeAndOccurrence(modTimes, 0); count >= quorum {
		return modTime
	}

	return timeSentinel
}

func commonETag(etags []string, quorum int) string {
	if etag, count := commonETags(etags); count >= quorum {
		return etag
	}
	return ""
}

    for: 5m
    labels:
      severity: critical
    annotations:
      summary: "Instance {{ $labels.server }} has lost quorum on pool {{ $labels.pool }} on set {{ $labels.set }}"
      description: "MinIO instance {{ $labels.server }} of job {{ $labels.job }} has lost quorum on pool {{ $labels.pool }} on set {{ $labels.set }} for more than 5 minutes."
```

## Verify the configuration and alerts

## Cluster probe

### Cluster-writeable probe

The reply is '200 OK' if cluster has write quorum if not it returns '503 Service Unavailable'.

```
curl http://minio1:9001/minio/health/cluster
HTTP/1.1 503 Service Unavailable
Accept-Ranges: bytes
Content-Length: 0
Server: MinIO
Vary: Origin
X-Amz-Bucket-Region: us-east-1
X-Minio-Write-Quorum: 3
X-Amz-Request-Id: 16239D6AB80EBECF
X-Xss-Protection: 1; mode=block

// GetValueWithQuorum returns the first key which occurs >= quorum number of times.
func (c counterMap[T]) GetValueWithQuorum(quorum int) (T, bool) {
	var zero T
	for x, count := range c {
		if count >= quorum {
			return x, true
		}
	}
	return zero, false
}

// figure out the most commonVersions across disk that satisfies
// the 'writeQuorum' this function returns "" if quorum cannot

				return
			}
		case "Owner":
			z.Owner, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "Owner")
				return
			}
		case "Quorum":
			z.Quorum, err = dc.ReadInt()
			if err != nil {
				err = msgp.WrapError(err, "Quorum")
				return
			}
		default:
			err = dc.Skip()
			if err != nil {
				err = msgp.WrapError(err)
				return
			}
		}
	}
	return
}

func isObjectDangling(metaArr []FileInfo, errs []error, dataErrsByPart map[int][]int) (validMeta FileInfo, ok bool) {
	// We can consider an object data not reliable
	// when xl.meta is not found in read quorum disks.
	// or when xl.meta is not readable in read quorum disks.
	notFoundMetaErrs, nonActionableMetaErrs := danglingMetaErrsCount(errs)

	notFoundPartsErrs, nonActionablePartsErrs := 0, 0
	for _, dataErrs := range dataErrsByPart {

		"Overall write quorum across pools and sets")
	erasureSetOverallHealthMD = NewGaugeMD(erasureSetOverallHealth,
		"Overall health across pools and sets (1=healthy, 0=unhealthy)")
	erasureSetReadQuorumMD = NewGaugeMD(erasureSetReadQuorum,
		"Read quorum for the erasure set in a pool", poolIDL, setIDL)
	erasureSetWriteQuorumMD = NewGaugeMD(erasureSetWriteQuorum,
		"Write quorum for the erasure set in a pool", poolIDL, setIDL)

package cmd

import "errors"

// errErasureReadQuorum - did not meet read quorum.
var errErasureReadQuorum = errors.New("Read failed. Insufficient number of drives online")

// errErasureWriteQuorum - did not meet write quorum.
var errErasureWriteQuorum = errors.New("Write failed. Insufficient number of drives online")

		}

		if isErrReadQuorum(pinfo.Err) && !opts.MetadataChg {
			// read quorum is returned when the object is visibly
			// present but its unreadable, we simply ask the writes to
			// schedule to this pool instead. If there is no quorum
			// it will fail anyways, however if there is quorum available
			// with enough disks online but sufficiently inconsistent to