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Yyds dry inventory KVM new inventory to expand space for home

2022-07-02 16:13:00 【Feng, crazy】

1. create disk 400G

      
      
       
       qemu-img create -f raw /home/vm/disk/v1.img 400G
      
      
      
      
       
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2. Modify configuration file add disk

      
      
       
       # Turn off the power 
       
       
[[email protected] kvmdisk]# virsh destroy WMS-test-2
       
       
Domain WMS-test-2 destroyed
       
       
# Profile add information 
       
       
[[email protected] kvmdisk]# virsh edit WMS-test-2
       
       
<disk type='file' device='disk'>     
       
       
  <driver name='qemu' type='raw' cache='none'/>      
       
       
  <source file='/home/vm/disk/v1.img'/>      
       
       
  <target dev='vdb' bus='ide'/>    
       
       
</disk>
      
      
      
      
       
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3. Format disk

      
      
       
       mkfs -t xfs /dev/sda //  Format the disk as xfs
      
      
      
      
       
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4. Use lvm Extended partitions

      
      
       
       pvcreate /dev/sda
       
       
pvdisplay
       
       
 take /dev/sda Add to home Corresponding volume group centos
       
       
vgextend centos /dev/sda
       
       
lvextend -L +399.9G /dev/mapper/centos_home
      
      
      
      
       
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5. Expand space

      
      
       
       resize2fs /dev/mapper/centos_home 
       
       
xfs_growfs /dev/mapper/centos_home // When resize2fs If something goes wrong, you can use , The file format is xfs Format time 
      
      
      
      
       
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