Krishnan Parthasarathi <******@****.***> 1725619883 -0700

		if !isErrReadQuorum(err) {
			t.Errorf("Expected read quorum error when if-none-match is used with quorum failure, got: %v", err)
		}
	})

	t.Run("if-match with read quorum failure", func(t *testing.T) {
		// Test Case 2: if-match (update only if ETag matches)
		// With if-match: <etag>, this should only succeed if object exists with matching ETag.
		// Since read quorum fails, we can't determine if object exists or ETag matches.

		if !isErrReadQuorum(err) {
			t.Errorf("Expected read quorum error when if-none-match is used with quorum failure, got: %v", err)
		}
	})

	t.Run("if-match with wrong ETag and read quorum failure", func(t *testing.T) {
		// Test Case 2: if-match with WRONG ETag
		// This should fail even without quorum issues, but with quorum failure
		// we can't verify the ETag at all.
		opts := ObjectOptions{

	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 {

				return entries, io.EOF
			}
			partN++
			retries = 0
		}
	}
}

// getListQuorum interprets list quorum values and returns appropriate
// acceptable quorum expected for list operations
func getListQuorum(quorum string, driveCount int) int {
	switch quorum {
	case "disk":
		return 1
	case "reduced":
		return 2
	case "optimal":
		return (driveCount + 1) / 2
	case "auto":

// 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 ""
}

## 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 "Quorum":
			if dc.IsNil() {
				err = dc.ReadNil()
				if err != nil {
					err = msgp.WrapError(err, "Quorum")
					return
				}
				z.Quorum = nil
			} else {
				if z.Quorum == nil {
					z.Quorum = new(int)
				}
				*z.Quorum, err = dc.ReadInt()
				if err != nil {
					err = msgp.WrapError(err, "Quorum")
					return
				}
			}
		default:

				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
}