External Drive

The NAS supports real-time and scheduled data backup between the internal disks volumes on the NAS and external USB/eSATA storage devices. To use this feature, follow the steps below.

Note: If an external storage device is encrypted by the NAS, make sure it is unlocked in “External Device” > “External Storage Device” before creating any backup jobs.

1.	Connect one or more external storage devices to the USB or eSATA (if available) interfaces of the NAS.

2.	Click “Create a new job”.

3.	When the wizard is shown, read the instructions carefully and click “Next”.

4.	Select the backup locations.

a.	Select an external disk volume* from the drop-down menu. The NAS supports EXT3, EXT4, FAT, NTFS, and HFS+ file systems. The general information of the storage device will be shown.

b.	Select “Map this backup job to the volume ID only” to map the backup job to this particular external storage device. The NAS will recognize the device and execute the backup job according to the settings automatically every time it is connected to the NAS via any USB/eSATA interface.

c.	Select to back up the data from local disk volume to the external storage or vice versa.

d.	Click “Next”.

*Multiple partitions on the external storage device will be recognized as individual disk volumes.

5.	Select the source and destination folders for backup. Then click “Add”. Up to 5 folder pairs can be created. Click “Next”.

Note: If a folder or its parent folder or child folder has been selected as the source or destination in a folder pair of a backup job, the same folder cannot be selected as the source or destination of another folder pair of the same backup job.

6.	Choose between real-time and scheduled backup. Real-time backup copies files that are new, changed, and renamed from the source folder to the target folder as soon as the changes are made after the first-time backup.

Scheduled backup copies files from the source folder to the target folder according to the schedule. The options are:

•	Replicate Now: Copy the data immediately.

•	Periodically: Enter the time interval in hour and minute that the backup job should be executed. The minimum time interval is 5 minutes.

•	Hourly: Select the minute when an hourly backup should be executed, e.g. select 01 to execute the backup job every first minute of an hour, 1:01, 2:01, 3:01...

•	Daily: Specify the time when a daily backup should be executed, e.g. 02:02 every day.

•	Weekly: Select a day of the week and the time when a weekly backup should be executed.

•	Monthly: Select a day of the month and the time when a monthly backup should be executed.

•	Auto-Backup: Execute data backup automatically every time the device is connected and detected by the NAS.

To configure the backup policy and filter settings, select “Configure policy and filter”. Click “Next”.

7.	Select whether or not to enable the following options:

•	Delete extra files: Delete extra files in the target folder. Deletions made on the source folder will be repeated on the target folder. This option is not available for real-time data backup.

•	Detect sparse files: Select this option to ignore files of null data.

•	Overwrite the file if the source file is newer or the file size is different．

•	Check file contents: Examine the file contents, date, size, and name to determine if two files are identical. This option is not available for real-time data backup.

•	Ignore symbolic links: Select this option to ignore symbolic links in the pair folder.

8.	Create filters for the backup job.

•	File size: Specify the minimum and maximum size of the files to be copied.

•	File date/time: Specify the date and time of the files to be copied.

•	Include file types: Specify the file types to be copied.

•	Exclude file types: Specify the file types to be excluded for data copy.

9.	Enter a name for the backup job. A job name supports up to 63 characters; it cannot start or end with a space. Click “Next”.

10.	Confirm the settings and click “Next”.

11.	Click “Finish” to exit the wizard.

12.	The backup job and the status will be shown on the list.

Button	Description
	Start a backup job.
	Stop a backup job.
	Edit the settings of a backup job.
	View the job status and logs. Download the logs of a backup job.
	Delete a backup job. This button is available only after a backup job is stopped.

To disable the backup schedule of a backup job, click and select “Disabled” under “Settings” > “Schedule Type” and click “Apply”.

Default Backup Job Settings

To edit the default backup job properties, click “Options”.

Under “Event Logs” you can select to enable “Download Detailed Logs” and specify the maximum file size of the log file. Select to send an email alert when a backup job fails or completes. Note that the SMTP server settings must be properly set up in “System Administration” > “Notification”.

Specify the backup policy in “Policy” and filter settings in “Filter”. These will become the default settings for all the backup jobs.

Download Backup Logs

1.	To download the logs of a backup job, make sure the option “Download Detailed Logs” in “Options” > “Event Logs” has been enabled.

2.	Click in “Action” column of a backup job.

3.	Go to “Job Logs” and click “Download Logs”. The log file can be opened by Microsoft Excel or any other text editor software. Note that this button is only available after you have enabled “Download Detailed Logs” in “Options” > “Event Logs” and executed the backup job once.

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External Drive					External_Drive Backup > External Drive / Dear Support Staff,
External Drive