Switch language name 'zh' to 'zh-cn'

This is the first step to rename 'zh' to 'zh-cn'. There are several reasons why we rename the language name. - The upstream docsy theme changed the language name, leading to many warnings during site build; The side-effect is that the i18n strings are no longer working. - We believe renaming the language is the right thing to do, because this move can make room for other variants of Chinese language, such as 'zh-tw', 'zh-sg' etc. There would be several follow-ups to this PR, such as fixing the intra-site links, adding redirects etc. We will lock up changes to zh/zh-cn pages for the moment, until this one gets in. This PR is based on commit cdad0a7342.
2022-06-10 20:25:27 +08:00
parent 3d345b1816
commit c52818c03d
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+---
+title: 卷健康监测
+content_type: concept
+---
+<!-- 
+reviewers:
+- jsafrane
+- saad-ali
+- msau42
+- xing-yang
+title: Volume Health Monitoring
+content_type: concept
+-->
+
+<!-- overview -->
+
+{{< feature-state for_k8s_version="v1.21" state="alpha" >}}
+
+<!-- 
+{{< glossary_tooltip text="CSI" term_id="csi" >}} volume health monitoring allows CSI Drivers to detect abnormal volume conditions from the underlying storage systems and report them as events on {{< glossary_tooltip text="PVCs" term_id="persistent-volume-claim" >}} or {{< glossary_tooltip text="Pods" term_id="pod" >}}.
+-->
+{{< glossary_tooltip text="CSI" term_id="csi" >}} 卷健康监测支持 CSI 驱动从底层的存储系统着手，
+探测异常的卷状态，并以事件的形式上报到 {{< glossary_tooltip text="PVCs" term_id="persistent-volume-claim" >}}
+或 {{< glossary_tooltip text="Pods" term_id="pod" >}}.
+
+<!-- body -->
+
+<!-- 
+## Volume health monitoring
+-->
+## 卷健康监测 {#volume-health-monitoring}
+
+<!-- 
+Kubernetes _volume health monitoring_ is part of how Kubernetes implements the Container Storage Interface (CSI). Volume health monitoring feature is implemented in two components: an External Health Monitor controller, and the {{< glossary_tooltip term_id="kubelet" text="kubelet" >}}.
+
+If a CSI Driver supports Volume Health Monitoring feature from the controller side, an event will be reported on the related {{< glossary_tooltip text="PersistentVolumeClaim" term_id="persistent-volume-claim" >}} (PVC) when an abnormal volume condition is detected on a CSI volume.
+-->
+Kubernetes _卷健康监测_ 是 Kubernetes 容器存储接口（CSI）实现的一部分。
+卷健康监测特性由两个组件实现：外部健康监测控制器和 {{< glossary_tooltip term_id="kubelet" text="kubelet" >}}。
+
+如果 CSI 驱动器通过控制器的方式支持卷健康监测特性，那么只要在 CSI 卷上监测到异常卷状态，就会在
+{{< glossary_tooltip text="PersistentVolumeClaim" term_id="persistent-volume-claim" >}} (PVC)
+中上报一个事件。
+
+<!--
+The External Health Monitor {{< glossary_tooltip text="controller" term_id="controller" >}} also watches for node failure events. You can enable node failure monitoring by setting the `enable-node-watcher` flag to true. When the external health monitor detects a node failure event, the controller reports an Event will be reported on the PVC to indicate that pods using this PVC are on a failed node.
+
+If a CSI Driver supports Volume Health Monitoring feature from the node side, an Event will be reported on every Pod using the PVC when an abnormal volume condition is detected on a CSI volume. In addition, Volume Health information is exposed as Kubelet VolumeStats metrics. A new metric kubelet_volume_stats_health_status_abnormal is added. This metric includes two labels: `namespace` and `persistentvolumeclaim`. The count is either 1 or 0. 1 indicates the volume is unhealthy, 0 indicates volume is healthy. For more information, please check [KEP](https://github.com/kubernetes/enhancements/tree/master/keps/sig-storage/1432-volume-health-monitor#kubelet-metrics-changes).
+-->
+外部健康监测{{< glossary_tooltip text="控制器" term_id="controller" >}}也会监测节点失效事件。
+如果要启动节点失效监测功能，你可以设置标志 `enable-node-watcher` 为 `true`。
+当外部健康监测器检测到节点失效事件，控制器会报送一个事件，该事件会在 PVC 上继续上报，
+以表明使用此 PVC 的 Pod 正位于一个失效的节点上。
+
+如果 CSI 驱动程序支持节点测的卷健康检测，那当在 CSI 卷上检测到异常卷时，
+会在使用该 PVC 的每个Pod 上触发一个事件。
+此外，卷运行状况信息作为 Kubelet VolumeStats 指标公开。
+添加了一个新的指标 kubelet_volume_stats_health_status_abnormal。
+该指标包括两个标签：`namespace` 和 `persistentvolumeclaim`。
+计数为 1 或 0。1 表示卷不正常，0 表示卷正常。更多信息请访问[KEP](https://github.com/kubernetes/enhancements/tree/master/keps/sig-storage/1432-volume-health-monitor#kubelet-metrics-changes)。
+
+<!-- 
+You need to enable the `CSIVolumeHealth` [feature gate](/docs/reference/command-line-tools-reference/feature-gates/) to use this feature from the node side.
+-->
+{{< note >}}
+你需要启用 `CSIVolumeHealth`
+[特性门控](/zh/docs/reference/command-line-tools-reference/feature-gates/)，
+才能在节点上使用此特性。
+{{< /note >}}
+
+## {{% heading "whatsnext" %}}
+
+<!-- 
+See the [CSI driver documentation](https://kubernetes-csi.github.io/docs/drivers.html) to find out which CSI drivers have implemented this feature.
+-->
+参阅 [CSI 驱动程序文档](https://kubernetes-csi.github.io/docs/drivers.html)，
+可以找出有哪些 CSI 驱动程序实现了此特性。
+