Incremental Backup

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What is Incremental Backup?
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• An Incremental Backup is a type of backup that
  only copies files that have changed since the
  previous backup.
• For example, if a full backup was performed on
  Monday, Tuesday's incremental will back up all
  changed files since Monday's backup. However,
  Wednesday's incremental will only back up files
  that have changed since Tuesday's incremental
  backup and so on until another full backup is
  performed.

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• Common types of incremental backups -

• Synthetic full backup
• Byte-level incremental backup
• Block-level incremental backup
• Incremental forever backup
• Multi-level incremental backups

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Advantages -

• The main advantage of incremental backups is
  that fewer files are backed up daily, allowing
  for shorter backup windows.

Disadvantages -
The disadvantage is that during a complete
restore the latest full backup and all subsequent
incremental backups must be restored, which can
take significantly longer than restoring a full
backup.
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• For more details go to the link as given below-

https//wordpress.org/plugins/blogvault-real-time-
backup