Integrated distributed file system with variable parity groups
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United States of America Patent
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N/A
Issued Date -
Nov 28, 2002
app pub date -
Jan 29, 2002
filing date -
Jan 29, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An integrated distributed file system with variable parity groups is described. The integrated distributed file system includes a first file server that is operably connected to a network fabric and a second file server that is operably connected to the network fabric. The integrated distributed file system further includes file system metadata that includes a first portion of the file system metadata that is loaded on the first file server and a second portion of the file system metadata that is loaded on the second file server. The file system metadata specifies at least a portion of a directory structure that aggregates files stored by the first file server and by the second file server to allow a client computer that is operably connected to the network fabric to locate files stored by the first file server and files stored by the second file server without prior knowledge as to which file server stores a desired file. The file system metadata further organizes file data into distributed parity groups. Each distributed parity group includes one or more data blocks and a parity block. The file system metadata includes disk identifier data and disk address data for each of the data blocks and for the parity block.
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