metadata engine
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A metadata engine collects, stores and analyzes information about data and
metadata Metadata is "data that provides information about other data", but not the content of the data, such as the text of a message or the image itself. There are many distinct types of metadata, including: * Descriptive metadata – the descriptive ...
(data about data) in use within a domain. It virtualizes the view of data for an application by separating the data (physical) path from the metadata (logical) path so that data management can be performed independently of where the data physically resides. This expands the domain beyond a single storage device to span all devices within its
namespace In computing, a namespace is a set of signs (''names'') that are used to identify and refer to objects of various kinds. A namespace ensures that all of a given set of objects have unique names so that they can be easily identified. Namespaces ...
. The main use of a metadata engine is to enable flexible IT infrastructure or environments, by making
applications Application may refer to: Mathematics and computing * Application software, computer software designed to help the user to perform specific tasks ** Application layer, an abstraction layer that specifies protocols and interface methods used in a c ...
more storage aware and conversely, a storage device application—or data—aware.


Purpose

Metadata engines virtualize the view of data. Combined with client access protocols such as NFS v4.2 and SMB 2.1 or SMB 3.0 (Samba), a metadata engine can create a global namespace to allow applications to see a logical view of their data, and can orchestrate data movement between different types or tiers of storage without disrupting the application's access to its data.


References

{{Portal bar, Computer programming, Human–computer interaction, Internet, Mathematics, Science Metadata registry