Multiple quality of service file system

a file system and service technology, applied in the field of file system and large file management, can solve the problems of increasing the workload of administrators, archival and hsm software also don't integrate well with snapshots, and inefficient use of expensive high performance storage, etc., to achieve the effect of improving descriptive information
US20070083482A1Inactive Publication Date: 2007-04-12PILLAR DATA SYSTEMS
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
PILLAR DATA SYSTEMS
Publication Date
2007-04-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a multiple QoS file system and methods of processing files at different QoS according to rules. The invention allocates multiple VLUNs at different qualities of service to the multiQoS file system. Using the rules, the file system chooses an initial QoS for a file when created. Thereafter, the file system moves files to different QoS using rules. Users of the file system see a single unified space of files, while administrators place files on storage with the new cost and performance according to attributes of the files. A multiQoS file system enhances the descriptive information for each file to contain the chosen QoS for the file.
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Description

BACKGROUND

[0001] The present invention relates to management of file systems and large files.

[0002] This application incorporates by reference herein as follows:

[0003] U.S. application Ser. No. 10 / 264,603, Systems and Methods of Multiple Access Paths to Single Ported Storage Devices, filed on Oct. 3, 2002;

[0004] U.S. application Ser. No. 10 / 354,797, Methods and Systems of Host Caching, filed on Jan. 29, 2003;

[0005] U.S. application Ser. No. 10 / 397,610, Methods and Systems for Management of System Metadata, filed on Mar. 26, 2003;

[0006] U.S. application Ser. No. 10 / 440,347, Methods and Systems of Cache Memory Management and Snapshot Operations, filed on May 16, 2003;

[0007] U.S. application Ser. No. 10 / 600,417, Systems and Methods of Data Migration in Snapshot Operations, filed on Jun. 19, 2003;

[0008] U.S. application Ser. No. 10 / 616,128, Snapshots of File Systems in Data Storage Systems, filed on Jul. 8, 2003;

[0009] U.S. application Ser. No. 10 / 677,560, Systems and Methods o...

Claims

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