How to limit disk I/O and IOPS for KVM VPS in SolusVM?

Applicable to:

• SolusVM

Question

How to limit disk I/O and IOPS for KVM VPS in SolusVM?

Answer

Such functionality is yet to be implemented in SolusVM.

As a workaround, Custom Config can be used:

1. Login to SolusVM admin panel
2. Open SolusVM > Virtual Servers > {VPS} > Custom Config
   
   
3. Copy Live Config, paste it in Custom Config field and tick the checkbox Enable Custom Config:
   
4. Add the following part in <disk></disk> section:

   CONFIG_TEXT: <iotune>
   <total_bytes_sec>10000000</total_bytes_sec>
   <read_iops_sec>400000</read_iops_sec>
   <write_iops_sec>100000</write_iops_sec>
   </iotune>

   For example:
   
   set the values according to IO requirements

5. Click Save & Reboot