Configuring Container Disk I/O Priority Level

Parallels Server Bare Metal provides you with the capability of configuring the Container disk I/O (input/output) priority level. The higher the Container I/O priority level, the more time the Container will get for its disk I/O activities as compared to the other Containers on the server. By default, any Container on the server has the I/O priority level set to 4. However, you can change the current Container I/O priority level in the range from 0 to 7 using the --ioprio option of the pctl set command. For example, you can issue the following command to set the I/O priority of Container 101 to 6:

# pctl set 101 --ioprio 6 --save

Saved parameters for Container 101

To check the I/O priority level currently applied to Container 101, you can execute the following command:

# grep IOPRIO /etc/vz/conf/101.conf

IOPRIO="6"

The command output shows that the current I/O priority level is set to 6.