Dig Up Data On Demand

Vendors are touting content-addressed storage (CAS) as a way to make discovery requests more manageable. In a nutshell, a CAS system locates data by an array-assigned address, rather than by physical address or directory. EMC's Centera is still the clear leader in terms of CAS-capable units, ma...

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Bibliographic Details
Published in:InformationWeek 2006-10 (1111), p.63
Main Author: Schuchart, Steven J
Format: Article
Language:English
Subjects:
Archives & records
Digital signatures
Information storage
Metadata
Security management
Online Access:Get full text
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Summary:Vendors are touting content-addressed storage (CAS) as a way to make discovery requests more manageable. In a nutshell, a CAS system locates data by an array-assigned address, rather than by physical address or directory. EMC's Centera is still the clear leader in terms of CAS-capable units, mainly because EMC was first with a strong play. A CAS system comprises storage nodes, where data is physically kept, and access nodes, where metadata and information on the data's location on the storage nodes are kept. When an enterprise has a rich metadata environment, the possibilities for search, categorization, and mining of vital data extend as far as the eye can see. Location-addressable operating systems do not store enough metadata to be useful in archiving. CAS serves as the foundation by which archiving operations can be performed. Although the technology has been around for years, CAS offerings are relatively immature.
ISSN:8750-6874