7.3
Table Of Contents
- Foundations and Concepts
- Contents
- Foundations and Concepts
- Updated Information
- Foundations and Concepts
- Using Scenarios
- Using the Goal Navigator
- Introducing vRealize Automation
- Tenancy and User Roles
- Service Catalog
- Infrastructure as a Service
- XaaS Blueprints and Resource Actions
- Common Components
- Life Cycle Extensibility
- vRealize Automation Extensibility Options
- Leveraging Existing and Future Infrastructure
- Configuring Business-Relevant Services
- Extending vRealize Automation with Event-Based Workflows
- Integrating with Third-Party Management Systems
- Adding New IT Services and Creating New Actions
- Calling vRealize Automation Services from External Applications
- Distributed Execution
A cloud reservation provides access to the provisioning services of a cloud service account, for
Amazon AWS, or to a virtual datacenter, for vCloud Director, for a business group to use.
A business group can have multiple reservations on the same compute resource or different compute
resources, or any number of reservations containing any number of machines.
A compute resource can also have multiple reservations for multiple business groups. In the case of
virtual reservations, you can reserve more resources across several reservations than are physically
present on the compute resource. For example, if a storage path has 100 GB of storage available, a
fabric administrator can create one reservation for 50 GB of storage and another reservation using the
same path for 60 GB of storage. You can provision machines by using either reservation as long as
sufficient resources are available on the storage host.
Configuring Reservation Policies
When a user requests a machine, it can be provisioned on any reservation of the appropriate type that
has sufficient capacity for the machine. You can apply a reservation policy to a blueprint to restrict the
machines provisioned from that blueprint to a subset of available reservations.
You can use a reservation policy to collect resources into groups for different service levels, or to make a
specific type of resource easily available for a particular purpose. When a user requests a machine, it can
be provisioned on any reservation of the appropriate type that has sufficient capacity for the machine. The
following scenarios provide a few examples of possible uses for reservation policies:
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To ensure that provisioned machines are placed on reservations with specific devices that support
NetApp FlexClone.
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To restrict provisioning of cloud machines to a specific region containing a machine image that is
required for a specific blueprint.
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As an additional means of using a Pay As You Go allocation model for machine types that support
that capability.
Note Reservations defined for vCloud Air endpoints and vCloud Director endpoints do not support the
use of network profiles for provisioning machines.
You can add multiple reservations to a reservation policy, but a reservation can belong to only one policy.
You can assign a single reservation policy to more than one blueprint. A blueprint can have only one
reservation policy.
A reservation policy can include reservations of different types, but only reservations that match the
blueprint type are considered when selecting a reservation for a particular request.
Reservation policies provide an optional means of controlling how reservation requests are processed.
You can apply a reservation policy to a blueprint to restrict the machines provisioned from that blueprint to
a subset of available reservations.
Foundations and Concepts
VMware, Inc. 37