Disk space of OpenVZ ploop-based VPS on the node's file system is much more than the disk space inside the VPS.

Applicable to:

• SolusVM

Symptoms 

The disk space of OpenVZ ploop-based VPS on the node's file system is much more than the disk space inside the VPS.

Cause

https://wiki.openvz.org/Man/ploop.8#Ballooning

Resolution

1. Connect to OpenVZ node via SSH
2. Execute the following command to discard the ploop balloon:

   # vzctl compact CTID

   or

   # ploop-balloon discard /vz/private/CTID/root.hdd/DiskDescriptor.xml

Note: replace CTID with the actual container ID.

For bulk operations use the below steps:

1. Create a /bin/compress file and paste the below content:
   

   # cat /bin/compress  
   #!/bin/sh
   vzlist -a | awk '{print $1}' | sed '/CTID/d' > ctid.txt echo "Compact started on $(date)" >> compactlogs.txt
   for i in `cat ctid.txt`
   do
   vzctl compact $i;
   done
   echo "Compact finished on $(date)" >> compactlogs.txt

2. Set the permissions for it:
   

   # chmod 700 /bin/compress

3. Run the below command on the Screen session and run a script:
   

   # /bin/compress