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Canadian application, no grantCanada

Method for performing disk array operations using a nonuniform stripe size mapping scheme

CA 2126754 A1 · Owner: Neufeld, E. David · Inventors: Neufeld, E. David

CIPO record

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Abstract From the Canadian patent

A method and apparatus for improving disk performance in a disk array subsystem. A nonuniform mapping scheme is used wherein the disk array includes regions having varying sizes of data stripes. The disk array includes a region comprised of data stripes having a stripe size that corresponds to the size of the internal data structures frequently used by the file system, in addition to a region comprised of a number of data stripes having a larger stripe size which are used for general data storage. When a write operation occurs involving one of the data structures the data structure is preferably mapped to the small stripe region in the disk array having a size which matches the size of the …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed December 18, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 18, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 18, 1992
GrantedNo grant recorded
Term endedDecember 18, 2012
Patent numberCA 2126754 A1
Classification (IPC)G06F3/06 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedDec 18, 1992Term endedDec 18, 2012

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.