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---
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title: "硬盘扩容"
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date: 2024-07-10T19:49:00+08:00
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lastmod: 2024-07-10T19:49:00+08:00
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keywords: []
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tags: ["扩容"]
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categories: ["storage"]
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---
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## 裸盘在线扩容
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- 环境:/dev/sdb 直接挂载在 /data/ 下
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- 直接更新文件系统
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```
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resize2fs /dev/sdb # ext4 文件系统,参数是设备
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xfs_growfs /data # xfs 文件系统,参数是挂载点
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```
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## 分区在线扩容
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- 环境:/dev/sdb1 直接挂载在 /data/ 下
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- 安装 growpart
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```
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yum install cloud-utils-growpart # redhat 系 linux
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apt install cloud-guest-utils # debian 系 linux
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```
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- 扩容分区
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```
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growpart /dev/sdb 1
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# 第一个参数是设备,第二参数是分区编号
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```
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- 更新文件系统
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```
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resize2fs /dev/sdb1 # ext4 文件系统,参数是分区设备
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xfs_growfs /data # xfs 文件系统,参数是挂载点
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```
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## lvm 逻辑卷在线扩容
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- 参考[LV管理](https://www.colben.cn/post/lvm/#lv-%E7%AE%A1%E7%90%86)
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