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Data Transfer Times

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Zen Vault online data backup provides reliable and effective ongoing data protection for your businesses data. The amount of time a backup takes is dependent on multiple factors, the two most influential factors are the amount of data you are protecting and the speed of your Internet connection.

The first backup takes the longest as you will be transferring the first copy of your data therefore it is important to plan how long this will take using your existing Internet connection.

The table below illustrates how long your first backup could take dependent the speed of your internet connection and the amount of data you need to backup.


Connectivity Product Upstream Speed 5GB 10GB 20GB 50GB 100GB 200GB
Broadband 256Kbps 44 h 4 d 7 d 19 d 37 d 74 d
448Kbps 25 h 51 h 4 d 11 d 21 d 42 d
512 Kbps 22 h 44 h 4 d 9 d 19 d 37 d
768 Kbps 15 h 30 h 59 h 6 d 12 d 25 d
SDSL/Leased Line 1 Mbps 11 h 23 h 46 h 5 d 10 d 19 d
2 Mbps 6 h 11 h 23 h 57 h 5 d 10 d
Ethernet 4 Mbps 3 h 6 h 11 h 28 h 57 h 5 d
6 Mbps 2 h 4 h 8 h 19 h 38 h 3 d
10 Mbps 1 h 2 h 5 h 11 h 23 h 46 h
100 Mbps 7 m 14 m 27 m 1 h 2 h 5 h

h = Hour(s), d = Day(s), m = Minutes

Subsequent backups take significantly less time as, thanks to incremental technology, you will only be sending changed data to Zen, which is typically only around 10% of the size of all of the data you are protecting. For example if you choose to protect 5GB of data, subsequent backups are likely to be around 500MB in size and take less than one hour to complete on a typical Broadband line.

If you have large amounts of data to transfer on your first backup we can provide an Offline Backup Service.

Want to find out more?

For more information about our Online Data Backup products, please contact us by phone on 0845 058 9000 or 01706 902000. Alternatively, please complete the

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