How to enable resource isolation for an OpenVZ container?

Resource isolation in OpenVZ is achieved through the use of control groups, also known as “cgroups”. These are a Linux kernel feature that limits, accounts for, and isolates the resource usage (CPU, memory, disk I/O, etc.) for process groups.

Here are the steps to enable resource isolation for an OpenVZ container:

1. Stop the container. You can use the command `vzctl stop `.

1. Set the resource limits. You can set the resource limits with the following types of commands: a). To set the CPU limit, use the command like `vzctl set —cpulimit —save`. b). To set the RAM limit, use the command like `vzctl set —ram —save`. c). To set the Disk Space limit, use the command like `vzctl set —diskspace —save`.

Please note that `—save` option will make these settings persistent even after a reboot.

1. Start the container. Use the command `vzctl start `.

These steps will help to enable resource isolation for your OpenVZ container. For more detailed limits and controls, please refer to the OpenVZ command reference or manual.