LV扩容
### 过程如下:
- 挂载一块硬盘4T
```bash fdisk /dev/sdb send n send p send w; mkfs -t ext4 -c /dev/sdb1 wrating.... pvcreate /dev/sdb1 vgextend rhel /dev/sdb1 lvextend -L +2000G /dev/mapper/lvs-home #根据文件格式进行重置home大小 xfs_growfs /dev/mapper/lvs-home or resize2fs -p /dev/mapper/lvs-home 其中遇到的问题如下: 创建完成PV-->mkfs(格盘)-->vgs(warning Device with uuid XXXXXX-xxxxxx-xxx-xxxx-xxxxx) 解决办法: pvcreate --uuid "UUID" --restorefile /etc/lvm/archie/rhel_000001-1511980835.vg /dev/sdb1 -ff 如果解决不了用第二种方式: vgreduce --removemissing --verbose myVG_NAME ```
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