Storage allocation in a distributed segmented file system

a file system and distributed segment technology, applied in the field of computer storage and file systems, can solve the problems of limited throughput, no transparent data sharing between file servers, and only expandable storage internally, and achieve the effects of large storage capacity and client load, convenient addition of storage capacity, and effective performan
US20080222223A1Inactive Publication Date: 2008-09-11HEWLETT PACKARD DEV CO LP
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
HEWLETT PACKARD DEV CO LP
Publication Date
2008-09-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

A file system (i) permits storage capacity to be added easily, (ii) can be expanded beyond a given unit, (iii) is easy to administer and manage, (iv) permits data sharing, and (v) is able to perform effectively with very large storage capacity and client loads. State information from a newly added unit is communicated (e.g., automatically and transparently) to central administration and management operations. Configuration and control information from such operations is communicated (e.g., automatically) back down to the newly added units, as well as existing units. In this way, a file system can span both local storage devices (like disk drives) and networked computational devices transparently to clients. Such state and configuration and control information can include globally managed segments as the building blocks of the file system, and a fixed mapping of globally unique file identifiers (e.g., Inode numbers) and / or ranges thereof, to such segments.
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Description

I. CROSS-REFERENCES TO RELATED APPLICATIONS

[0001] This is a continuation patent application which claims priority from U.S. patent application Ser. No. 10 / 425,550 (the '550 application) filed on Apr. 29, 2003 which is a continuation-in-part of and claims the benefit of U.S. application Ser. No. 09 / 950,555 filed Sep. 11, 2001, that claims the benefit of U.S. Provisional Application No. 60 / 232,102 filed Sep. 12, 2000. The '550 application also claims the benefit of U.S. Provisional Application No. 60 / 395,839 filed Jul. 15, 2002. The '550 application also claims the benefit of U.S. Provisional Application No. 60 / 447,720 filed Feb. 19, 2003. The '550 application also claims the benefit of U.S. Provisional Application No. 60 / 447,722 filed Feb. 19, 2003. The '550 application also claims the benefit of U.S. Provisional Application No. 60 / 447,723 filed Feb. 19, 2003. These applications are incorporated by reference in their entirety.II. BACKGROUND OF THE INVENTION

[0002] A. Field of the Invent...

Claims

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