User`s guide

Parallels Server 4 Bare Metal Basics 23
Resource Management
Parallels Server Bare Metal resource management controls the amount of resources available to
virtual machines and Containers. The controlled resources include such parameters as CPU
power, disk space, a set of memory-related parameters. Resource management allows you to:
 effectively share available physical server resources among virtual machines and Containers
 guarantee Quality-of-Service in accordance with a service level agreement (SLA)
 provide performance and resource isolation and protect from denial-of-service attacks
 simultaneously assign and control resources for a number of virtual machines and
Containers
 collect usage information for system health monitoring
Resource management is much more important for Parallels Server Bare Metal than for a
standalone server since server resource utilization in such a system is considerably higher than
that in a typical system.
Understanding Licensing
To start using the Parallels Server Bare Metal software, you need a special license - Parallels
Server Bare Metal license. You must install this license on your server after or when installing
Parallels Server Bare Metal on it. Every physical server hosting virtual machines and Containers
must have its own license. Licenses are issued by Parallels and define a number of parameters in
respect of your physical server. The main licensed parameters are listed below:
 The number of CPUs which can be installed on the physical server. Keep in mind that each
of the Dual Core and Hyperthreading processors is regarded as one CPU.
 The license expiration date. Any license can be time-limited or permanent.
Parallels Server Bare Metal licenses have a start date, and if they are time-limited, can also
have an expiration date specified in them. You must set up your system clock correctly;
otherwise, the license validation may fail.
 The number of virtual machines and Containers the physical server will be able to host.
 The platform and architecture with which the Parallels Server Bare Metal software is
compatible.