A metadata repository is a physical
location in which a collection of related metadata objects is stored.
Metadata repositories are managed by a repository manager, which is
a library of tables that define the set of repositories that can be
accessed by a SAS Metadata Server. A metadata server cannot be started
without a repository manager. Each metadata server can have only one
repository manager.
The SAS Metadata Server
supports three types of metadata repositories:
Foundation repositories
are the required metadata
stores for SAS Metadata Servers. Each metadata server has one foundation
repository that is created by default when the metadata server is
configured. The default name of the foundation repository is Foundation.
(If you performed a custom installation, then you might have assigned
a different name.) You cannot create more than one foundation repository.
Custom repositories
are optional metadata
stores for SAS Metadata Servers that can be configured in addition
to the foundation repository. Custom repositories are useful for physically segregating
metadata for storage or security purposes.
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If your metadata storage requirements
exceed the capacity of a single metadata storage location, you could
create custom repositories on separate storage devices that are accessible
to the metadata server.
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If you have metadata that is highly
sensitive, you could create a custom repository for that metadata
and store it in a directory that has an exceptionally high level of
protection from unauthorized access.
Custom repositories
appear as separate folders in the Folders view of SAS Management Console
and in other client applications.
Project repositories
are metadata repositories
that serve as isolated work areas or playpens. Project repositories
are available for SAS Data Integration Studio only. In general, each
user who participates in change management has his or her own project
repository.
A project repository
enables a user to check out and lock metadata from a foundation repository
or a custom repository so that the metadata can be modified and tested
in a separate area. When the metadata is ready, it is checked in and
unlocked so that it is available to other users.
For information about
creating project repositories,
see Setting up Change Management in SAS Intelligence Platform: Desktop Application Administration Guide.
The SAS Deployment Wizard
creates just one repository, which is the foundation repository. If
you create additional repositories, then the metadata in a given repository
can be associated with metadata in other repositories as follows:
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Metadata in a custom repository
can be associated with metadata in the foundation repository and with
metadata in all other custom repositories.
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Metadata in the foundation repository
or in any custom repository can be checked out to any project repository,
as long as the user has the appropriate permissions.
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Metadata that is checked out to
a project repository can be associated with metadata in the foundation
repository or with metadata in any custom repository (but not with
metadata that is checked out to a different project repository).
Note:
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An additional repository called
BILineage is created automatically the first time an unrestricted
administrative user logs on to SAS Management Console. This repository
stores metadata lineage and impact analysis data that is generated
by SAS Data Integration Studio, SAS OLAP Cube Studio, and the BI Lineage
plug-in for SAS Management Console. The BILineage repository should
not be used for any other purpose. For more information, see
Using the BI Lineage Plug-in.
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In SAS 9.2 and SAS 9.3, it is not
necessary to define dependencies between repositories. If a repository
dependency was defined in SAS 9.1.3, then the dependency relationship
is eliminated during the SAS 9.1.3 to SAS 9.3 migration process. However,
the existing associations between metadata objects still remain in
effect