Description

Configure the memory over-provisioning parameters allowed by the host to meet the scenarios where the configurable memory exceeds the physical memory.

Precautions

1. When the actual memory used exceeds the committed-RAM capacity, the virtual machine will not be able to power on.
2. When the actual configured memory of the running virtual machine exceeds the configurable memory, the virtual machine will not be able to power on.
3. After the active upgrade, the memory guarantee mechanism and the overcommitment alert need to restart to take effect.
4. The larger the memory overcommitment ratio, the more virtual machines can be started. If the ratio is too high, the virtual machine may have latency, so please set it carefully. It is not recommended to enable memory overcommitment in core business scenarios.
5. If the memory overcommitment ratio of the node before the upgrade is greater than 300%, it will be forced to be set to 300% after the upgrade.

Prerequisites

None.

Steps

1. Navigate to System > Cluster Settings > Memory Overcommitment Settings.
2. Configure memory overcommitment.