Chinese Old Saying: A Wily Hare Has Three Burrows

Introduction to Remote Backup

Before introducing remote backup, we’ll go through some common terms associated with “backup” and find out the difference.

Local Backup:

“Local” means local device, it could possibly be a hard drive, desktop, and server or NAS that connects to an external device. In a sense, it’s like a DAS, external hard drive, external CD/DVD writer, tape drives, or other solid state storage, e.g. flash memory, thumb drive, CF card, SD cards by physical connection interfaces, for example, USB, eSATA, Optical, … to conduct unidirectional / bidirectional backup.

Pros: faster speeds, and the user has full control over these devices to keep better privacy.

Cons: external devices usually are at the same location with the local device, users have to do physical connection and backup files manually.

Remote Backup:

In short, it’s remote access through the internet to backup data on a local device (PC/NAS) to another.

Pros:when encountering the worst case of natural or man-made disasters, there is a complete backup of the other end; another advantage is that you can set a scheduled backup, automatically or multi-machine.

Cons: the data transfer speed will be affected by network bandwidth, and the setting is more complex than local backup, another issue is the higher cost.

Additional, cloud backup of course is a kind of remote backup. However, cloud service does not lie in our own hands. Security issues are crucial.

Remote Backup

Now, we will introduce Thecus NAS-to-NAS remote backup solution.

Why we suggest the method?

At first, NAS, as the name implies “Network” is attached.

Second, your data will be under dual-protection by RAID for data redundancy.


The scenario below will show remote backup from a N5550 to N4800Eco.

N5550: uses 5pcs 500GB SSD to build RAID5, there are iSCSI volume and shared folders, and multiple user access; we want to emphasize the performance and multiple user sharing.

N4800Eco: 4pcs 4TB SATA III HDD to build RAID5, emphasize dual-protection by data redundancy.

Scenario-Remote Backup: N5550 to N4800

Ben is a MIS in an advertising design company which has about 30 people. It’s a miscellaneous work that everyday Ben has to maintain all kinds of devices, and back up all data that members generate. They purchased a Thecus N5550 to be a data pool inside the company. The N5550 makes Ben’s jobs easier and more convenient when he is in charge of network environment setting and data protection. So they bought a N4800Eco designed for data backup purposes.


Ben’s Backup Plan: Scheduled Backup

Each department saves their files to the N5550’s public folder. The backup plan Ben delivered is to do a full backup once a month. In the full backup setting, Ben chooses to compress files when he transfers because of the huge data.

Full Backup: scheduled

Request from Design Department: Real-time Backup Important Files

The artwork (AD, film, …) created by designer is very important, it’s the product, the cash. If the products (digital files) that must be delivered to customers are damaged or gone, results in significant losses. Therefore custom backup fits the need. Ben selects the shared folder dedicated to Design department, backup type set to “Real-time.” Choose “Incremental” sync type to make the backup more efficiency because the file size is big and usually up to hundreds of megabytes. Ben only sets up once, and when designers add or revise files in the shared folder, the NAS will backup automatically.

Custom backup

Request from Administration Department: Document Archive

Angela is responsible for arranging administration documents from each department. In addition to classifying them, those out of date but need to keep record have to be archived as well. Ben provides a backup plan for her. Because the backup is not an immediate task, Ben chooses the “Custom backup” option. He sets the backup type as “scheduled,” the N5550 will perform the backup task automatically once a week, and sync type is “incremental”.

The data backup task is once and for all, and each task set does not take more than one minute to complete!

Custom Backup: Document Archive


Here’s the remote backup How-to guide:

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