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GFS, or Grandfather, Father, Son, is a backup rotation system that incorporates daily, weekly and monthly backups.
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Friday, March 28, 2008
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Corporate offices employ data backups in the event of a disaster that may destroy crucial data. The most common method used to back up is tape.
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Friday, March 28, 2008
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A differential backup occurs for all files that have changed since the last full backup, regardless of whether they changed since the last differential backup. The archive bit is set to 1 when the file is modified and not reset after the backup. Incremental backup occurs only on files that have changed since the last backup. A change to a file will set the archive bit to one, thus flagging it for the backup.
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Friday, March 28, 2008
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