搜索结果: "storage"

title: K8s 持久化存储 — PV / PVC / StorageClass 生产实战

tags: [kubernetes, storage, pvc, statefulset, production]

sources: [raw/articles/k8s-persistent-storage-guide.md]

## PV / PVC / StorageClass 关系

StorageClass = 仓库分类标准（高性能/普通/便宜）

tags: [kubernetes, deployment, architecture, build, networking, storage, monitoring, configmap, security, certificate, docker, container]

kubectl get storageclass

# 确认有默认 StorageClass (annotations 含 storageclass.kubernetes.io/is-default-class=true)

storageClassName: standard

storage: 50Gi

tags: [kubernetes, architecture, deployment, pod, service, statefulset, networking, storage]

PV (PersistentVolume) ← 集群管理员创建（或 StorageClass 动态创建）

StorageClass ← 定义存储类型（SSD/HDD，云盘/NFS）

PVC 创建 → 查找匹配 PV（容量/访问模式/StorageClass）

详见 [[k8s-persistent-storage-guide]]（PV/PVC 生产实战）和 [[storage-troubleshooting]]（存储排障）。

| 14 | PV 和 PVC？ | PV 是集群存储资源，PVC 是对 PV 的请求 | [[k8s-persistent-storage-guide]] |

| 40 | 持久化存储实现？ | PV/PVC/StorageClass 配合 | [[k8s-persistent-storage-guide]] |

| 69 | 存储类（StorageClass）？ | 动态创建 PV 的模板，定义存储类型和参数 | [[k8s-persistent-storage-guide]] |

| 94 | 存储架构设计？ | 需求分析 + 类型选择（PV/PVC/StorageClass）+ 分层 + HA + 监控 |

| [[k8s-persistent-storage-guide]] | PV/PVC/StorageClass 生产实战 |

tags: [kubernetes, troubleshooting, pod, scheduling, networking, storage, deployment]

**Events 关键词：** `Insufficient cpu` / `Insufficient memory` / `Insufficient ephemeral-storage`

- StorageClass 不存在或未安装 CSI 驱动

# 检查 StorageClass

kubectl describe sc <storage-class>

tags: [kubernetes, statefulset, deployment, storage, networking, production]

storageClassName: "standard"

storage: 10Gi

底层存储机制参见 [[k8s-persistent-storage-guide]]（PV/PVC/StorageClass 原理与生产配置）。

参见 [[pod-troubleshooting]] 了解通用 Pod 排障方法，[[storage-troubleshooting]] 了解存储相关排障。

tags: [kubernetes, troubleshooting, production, debugging, pod, node, service, storage, networking, security]

| **PVC 未就绪** | `kubectl get pvc -n ` → `kubectl describe pvc` | 检查 StorageClass / PV 绑定 / 存储后端 |

PVC Pending → 检查 StorageClass → 检查 PV → 检查 CSI 驱动 → 检查后端存储

| PVC Pending | StorageClass 不存在或注解错误 | `kubectl get sc` |

> 🔙 **回滚：** 如果是 PV/PVC 配置问题，先恢复原 StorageClass 和 PVC 定义，再重新创建 Pod。

tags: [kubernetes, troubleshooting, storage, pvc, statefulset]

- StorageClass 不存在

# 检查 StorageClass

kubectl get storageclass

kubectl get pods -n kube-system | grep -E "csi|storage"

- Created concepts: k8s-troubleshooting-principles, pod-troubleshooting, node-troubleshooting, service-troubleshooting, storage-troubleshooting, resource-rbac-scheduling-troubleshooting

## [2026-05-08] ingest | K8s持久化存储深度解析：PV、PVC、StorageClass

- Created raw: raw/articles/k8s-persistent-storage-guide.md

- Created concepts: k8s-persistent-storage-guide

- 交叉引用：k8s-statefulset-guide, k8s-persistent-storage-guide, k8s-probes-guide 等

tags: [linux, storage, networking, performance, troubleshooting, filesystem]

> 容器场景：[[k8s-persistent-storage-guide]]（K8s 中使用 NFS 作为 PV）

- [[k8s-persistent-storage-guide]] — K8s 持久化存储（NFS 作为 PV 的场景）

- [[storage-troubleshooting]] — K8s 存储排障（PVC 挂载失败与 NFS 的关系）

tags: [kubernetes, troubleshooting, configmap, pod, storage, debugging]

- [[k8s-persistent-storage-guide]] — PV/PVC 持久化存储（需持久化写目录时的替代方案）

- **存储层:** `kubectl get pvc,pv`, `kubectl get storageclass`

| PVC Pending | `kubectl describe pvc` 事件 | StorageClass 不存在、CSI 异常 |

- **PVC Pending:** 检查 StorageClass 是否存在、CSI 是否正常

kubectl get pods -n kube-system | grep -E "csi|storage"

tags: [linux, troubleshooting, disk, storage, monitoring, production, debugging]

- [[storage-troubleshooting]] — K8s 存储排障（PVC/挂载）

- [[k8s-persistent-storage-guide]] — K8s 持久化存储：PV / PVC / StorageClass 生产实战

- [[storage-troubleshooting]] — 存储排障：PVC Pending / 挂载失败

- storage: 存储相关

- [[k8s-persistent-storage-guide]] — 容器化部署中的存储管理

- [[k8s-persistent-storage-guide]] — 存储选型是数据库上 K8s 最大的风险点

- 删除 StorageClass（PV 无法恢复）

tags: [linux, disk, storage, command, monitoring, troubleshooting]

tags: [linux, performance, storage, production, monitoring, debugging]

tags: [linux, command, storage, disk, architecture, troubleshooting]

tags: [linux, storage, disk, architecture, command]

tags: [linux, troubleshooting, nfs, storage, networking, performance, monitoring, security]