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Catalogs in VMware vCloud Director (1026324)

Purpose

This article provides information about about the Catalog and its contents in VMware vCloud Director.

Resolution

 
VMware vCloud Director uses the concept of a catalog for storing content. Organizations have their own catalog that they can populate and and share the contents with other organizations and users.
 
All entities in the catalog are stored in a content repository system. The content repository, a component in the vCloud Director storage subsystem, provides an abstraction to the underlying datastores while offering features to store, search, retrieve, and remove both structured and unstructured data.
 
You can share catalogs within an organization. For example, you can share a private catalog of templates with another user in the same organization.
 
You can publish catalogs to other organizations (read only). Users who are members of multiple organizations see those catalogs in their view of the catalog page. For example, you can share a private catalog of templates with another organization in which you also belong.
 
Note: The upload functionality requires Java version 1.6 to be installed on the host from which you are attempting the upload.
 
A catalog is a container for:
  • vApps
    • vApps simplify the deployment and ongoing management of an n-tier application in multiple virtual machines by encapsulating it into a single virtual service entity.
    • A vApp has the same basic operations as a virtual machine, but can contain multiple virtual machines.
    • vApps encapsulate not only virtual machines but also their inter-dependencies and resource allocations allowing for single-step power operations, cloning, deployment, and monitoring of the entire application.
    • The distribution format for vApps is OVF. They can be imported and exported just like OVF virtual machines.
    • A vApp can be configured with a number of variables.
    • Virtual machines that run in the vApp are presented with the variable in an OVF configuration, which includes the network information, in the form of an .XML file. You can then customize the appliance so that virtual machines in the vApp can pick up this vApp configuration information.
    • You can assign a virtual machine within a vApp an IP address from an IP pool predefined in your cluster. This information is then available to all the other members of the vApp (for example, a database virtual machine and a web server virtual machine automatically know about each other at power on time.

  • vApp Templates
    • A vApp Template is an immutable vApp. It cannot be deployed and therefore cannot be powered on. It can, however, be instantiated, creating a vApp instance that can be deployed and powered on.
    • A vApp Template can be created by:
      • Importing a virtual machine from a vCenter Server or from a vApp in the data centre
      • Uploading via a file using the Image Transfer Service

    • If templates are not in OVF format, they are converted to this format. OVF versions 0.9 and 1.0 are supported.
    • vApp Templates may also be downloaded from the catalog

  • Media
    • Media refers to ISO or floppy images, such as boot and installation CDs, DVD s, and floppy disks.
    • Media can be uploaded or imported into the vCloud Director catalog using the Image Transfer Service.
    • For CD and DVD files, the only supported format is .iso. For floppy files, the only supported formats are .img, . vfd, and .flp. The maximum size of any of these media files for upload is 64GB.
    • If media files are uploaded, the server tests the headers of these media files to validate its supported formats.
    • A media image in the catalog can be attached to a vApp and mounted by a virtual machine.
    • All media images are read-only in vCloud Director.

Note: Media are not accessible from the VMware Remote Console. Selecting Insert CD/DVD from the VMware Remote Console (VMRC) provides you with a browser to the host from which the VMRC is launched, not the Organization catalog.

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