Quotas are a mechanism which control resource allocation within the data centers. With quotas, there can be controlled allocation of resources to users and groups. Quotas can be set for resources such as CPU, RAM, and disk space. Within the data center, you can create a few quotas and assign those quotas to specific users. Thus, the limitation of resources is realized in oVirt.
Quotas are designed primarily to limit the users, so it is advisable to use the quota if you have an external directory server.
Before you begin, perform the following steps to configure the data center on the use of quotas: