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Title: Twin-tailed fail-over for fileservers maintaining full performance in the presence of a failure

Abstract

A method for maintaining full performance of a file system in the presence of a failure is provided. The file system having N storage devices, where N is an integer greater than zero and N primary file servers where each file server is operatively connected to a corresponding storage device for accessing files therein. The file system further having a secondary file server operatively connected to at least one of the N storage devices. The method including: switching the connection of one of the N storage devices to the secondary file server upon a failure of one of the N primary file servers; and switching the connections of one or more of the remaining storage devices to a primary file server other than the failed file server as necessary so as to prevent a loss in performance and to provide each storage device with an operating file server.

Inventors:
 [1];  [2];  [3];  [4];  [2]
  1. Yorktown Heights, NY
  2. Mount Kisco, NY
  3. Irvington, NY
  4. Cortlandt Manor, NY
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
950120
Patent Number(s):
7330996
Application Number:
10/468,990
Assignee:
International Business Machines Corporation (Armonk, NY)
Patent Classifications (CPCs):
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05K - PRINTED CIRCUITS
G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Coteus, Paul W, Gara, Alan G, Giampapa, Mark E, Heidelberger, Philip, and Steinmacher-Burow, Burkhard D. Twin-tailed fail-over for fileservers maintaining full performance in the presence of a failure. United States: N. p., 2008. Web.
Coteus, Paul W, Gara, Alan G, Giampapa, Mark E, Heidelberger, Philip, & Steinmacher-Burow, Burkhard D. Twin-tailed fail-over for fileservers maintaining full performance in the presence of a failure. United States.
Coteus, Paul W, Gara, Alan G, Giampapa, Mark E, Heidelberger, Philip, and Steinmacher-Burow, Burkhard D. Tue . "Twin-tailed fail-over for fileservers maintaining full performance in the presence of a failure". United States. https://www.osti.gov/servlets/purl/950120.
@article{osti_950120,
title = {Twin-tailed fail-over for fileservers maintaining full performance in the presence of a failure},
author = {Coteus, Paul W and Gara, Alan G and Giampapa, Mark E and Heidelberger, Philip and Steinmacher-Burow, Burkhard D},
abstractNote = {A method for maintaining full performance of a file system in the presence of a failure is provided. The file system having N storage devices, where N is an integer greater than zero and N primary file servers where each file server is operatively connected to a corresponding storage device for accessing files therein. The file system further having a secondary file server operatively connected to at least one of the N storage devices. The method including: switching the connection of one of the N storage devices to the secondary file server upon a failure of one of the N primary file servers; and switching the connections of one or more of the remaining storage devices to a primary file server other than the failed file server as necessary so as to prevent a loss in performance and to provide each storage device with an operating file server.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {2}
}

Patent:

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