Operation Manual

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Enable encryption: Select this option to execute encrypted remote replication. Note
that you must turn on “Allow SSH connection” in “Network Services > “Telnet/SSH”
and specify the same port number for SSH and encrypted remote replication.
Activate file compression: Turn on this option to allow file compression during the
data transfer process. This option is recommended for low bandwidth environment or
remote replication over WAN.
Perform incremental replication: When this option is turned on, after the first-time
replication, the NAS will only back up the files that have been changed since the last
backup. The files of the same name, size, and modified time will not be copied again.
You are recommended to turn on this option for the replication job which will be
executed for more than once in order to shorten the backup time.
Delete extra files on remote destination: Select the option to synchronize the source
data with the destination data (one-way synchronization). Extra files on the
destination will be deleted. Source data will remain unchanged.
Handle sparse files efficiently: A sparse file is a type of computer file that contains
large blocks of zero-byte data. Turning on this option may reduce the time required
for remote replication.
8. Click “Apply”. If you select the “Execute backup immediately” option, the replication
task will start at once. Otherwise, it will be performed according to your schedule.
Note that the job is recursive. Do not turn off the local NAS and the remote server
when remote replication is running.