User Manual

BACKUP AND RESTORE
How Backups are Stored
74 | User Manual (v1.0.0.1)
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• The first time a folder is backed up, it is copied in its entirety to
the Smart Home Server, so that one copy of each file is stored.
• After that, the individual files in the folder are only copied to
the Smart Home Server when they change. If they do not
change, the most recent version of the file is moved from the
previous backup to the current backup.
• The Smart Home Server can store up to eight versions of a file.
If a file never changes, only one version is stored. Each time a
backup is performed, this version is moved from the previous
backup to the current backup.
• If eight versions of a file are stored, and the file changes again,
the oldest version is dropped and the new version stored. This
process continues with each subsequent change.
EXAMPLE
To make this clearer, let’s consider a specific example:
1 Young Johnny creates a folder called Projects for school assignments.
He then prepares first drafts of English, history, science and Spanish
papers, and saves them as files in the Projects folder. On the morning of
Nov. 1, the folder is backed up for the first time. This is what the backup
looks like:
2 That night, Johnny makes changes to the English and History files, but
does nothing to the Science and Spanish files. On Nov. 2 the next
backup is performed. This is what the backups now look like:
English History SpanishScience
Ver. 1 Ver. 1 Ver. 1 Ver. 1
ProjectsBackup: Nov. 1