Proware SN-3163S3H-QX, User Manual

Page: 177 / 237

SAS / SATA II NAS System
User Manual 177
How Duplication Works
After you have created Duplication, your destination path will contain a folder
"._Duplication". (It is hidden by default, to unhide it, uncheck the "hide duplication"
option in the Properties tab of the destination folder). Inside the "._Duplication" folder
are the directories that are created for the various intervals that you have defined. It will
look something like in the figure below.
Inside each of these folders is the full backup of that point in time of the source share.
The format of the duplication folder name will be the share name of the source share
appended by an underscore then the character "Dup" followed by the number of the
interval. "ShareName_Dup.0" will always contain the most recent snapshot and the
duplication with the highest interval number will contain the oldest snapshot. When a
new duplication is run, it will rotate all the duplication directories. The files on oldest
duplication will not be saved and will be replaced with the content of its succeeding
duplication, so please take note of this. The number of duplication will depend on the
number of snapshots that you have defined. You need to increase the total number of
snapshots if you want to save the backups for a longer time. For example, if you set the
snapshot numbers to 60 and you set a schedule to take duplication every day, the very
last backup would be around two months old before it will be discharged if a new
duplication is made.
NOTE: To view the date modified of duplication folders that
corresponds to the date the duplication is taken, use File Manager
and view in detailed mode.