func getNodeDriveWaitingIOMD() MetricDescription {
	return MetricDescription{
		Namespace: nodeMetricNamespace,
		Subsystem: driveSubsystem,
		Name:      "io_waiting",
		Help:      "Total number I/O operations waiting on drive",
		Type:      counterMetric,
	}
}

func getNodeDriveFreeBytesMD() MetricDescription {
	return MetricDescription{
		Namespace: nodeMetricNamespace,
		Subsystem: driveSubsystem,

* AWS: Fix long-standing bug in stringSetToPointers ([#26331](https://github.com/kubernetes/kubernetes/pull/26331), [@therc](https://github.com/therc))
* AWS kube-up: Increase timeout waiting for docker start ([#25405](https://github.com/kubernetes/kubernetes/pull/25405), [@justinsb](https://github.com/justinsb))

- Kubelet: improve the performance when waiting for a synchronization of the node list with the kube-apiserver ([#99336](https://github.com/kubernetes/kubernetes/pull/99336), [@neolit123](https://github.com/neolit123)) [SIG Node]

## Dependencies

### Added

   The `read_vs_write_current_requests` metric histogram is adjusted, in the case of using API Priority and Fairness instead of max-in-flight, to divide by the relevant limit: sum of queue capacities for waiting requests, sum of seat limits for executing requests. ([#110164](https://github.com/kubernetes/k...

			createStorage := func(endpoint Endpoint) bool {
				xl, err := newXLStorage(endpoint, false)
				if err != nil {
					// if supported errors don't fail, we proceed to
					// printing message and moving forward.
					if errors.Is(err, errDriveIsRoot) {
						err = fmt.Errorf("major: %v: minor: %v: %w", xl.major, xl.minor, err)
					}
					logFatalErrs(err, endpoint, false)
					return false

- Kubeadm: waiting for etcd learner member to be started before promoting during 'kubeadm join' ([#136366](https://github.com/kubernetes/kubernetes/pull/136366), [@dlipovetsky](https://github.com/dlipovetsky)) [SIG Cluster Lifecycle]

  
  ### Exoscale
  - Add support for Exoscale
  
  ### GCE
  - Decrease the number of GCE Read Requests made while deleting nodes
  - Base pricing of custom instances on their instance family type
  - Add pricing information for missing machine types
  - Add pricing information for different GPU types
  - Ignore the new `topology.gke.io/zone` label when comparing groups
  - Add missing stable labels to template nodes
  

- Static pods were taking extra time to be restarted after being updated.  Static pods that are waiting to restart were not correctly counted in `kubelet_working_pods`. ([#116995](https://github.com/kubernetes/kubernetes/pull/116995), [@smarterclayton](https://github.com/smarterclayton)) [SIG Node]

  
    - Traffic to a service IP now starts getting rejected (as opposed to
      merely dropped) as soon as there are no longer any *usable*
      endpoints, rather than waiting until all of the terminating
      endpoints have terminated even when those terminating endpoints
      were not being used.
  
    - Chains for endpoints that won't be used are no longer output to

- Kubeadm: waiting for etcd learner member to be started before promoting during 'kubeadm join' ([#136365](https://github.com/kubernetes/kubernetes/pull/136365), [@dlipovetsky](https://github.com/dlipovetsky)) [SIG Cluster Lifecycle]