ONLINE REDISTRIBUTION
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United States of America Patent
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Issued Date -
May 19, 2016
app pub date -
Nov 19, 2014
filing date -
Nov 19, 2014
priority date (Note) -
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Abstract
Methods and systems are disclosed to perform online disk data redistribution in a database environment. The methods and systems disclosed herein provide for the redistribution of data across multiple physical disks of a database while when a new physical storage device is added to the database. In embodiments, online redistribution of the data may include creating a temporary file, copying live database from a first physical storage to the temporary file, creating a checkpoint for the database, writing the temporary file to a second physical storage device that is added to the database, and purging the live database file and the temporary database file.
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