Help Center> Data Express Service> Service Overview> Application Scenarios
Updated on 2022-04-02 GMT+08:00
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Application Scenarios

You can estimate the transmission time by using the following formula. If data transmission cannot be completed by the Internet within the time you expect, try DES. The following formula shows how to calculate the data transmission time over the Internet:

Transmission time (days) = [Total capacity (KB)]/[Bandwidth (Mbit/s) x 125 x Network utilization rate x 60 (seconds) x 60 (minutes) x 24 (hours)]

Based on the formula, Table 1 shows the estimated days to transmit 1 TB data with different bandwidths. Table 2 compares DES with the data transmission using the Internet in terms of bandwidth range and data amount.

Table 1 Estimated days to transmit 1 TB data

Network Bandwidth

2 Mbit/s

10 Mbit/s

40 Mbit/s

100 Mbit/s

Days (Network Utilization of 80%)

62.5

12.5

3.5

1.5
Table 2 Recommended transmission modes

Network Bandwidth

Data Volume

Transmission Mode

2 Mbit/s

≥ 100 GB

DES

< 100 GB

Internet

10 Mbit/s

≥ 600 GB

DES

< 600 GB

Internet

40 Mbit/s

≥ 2 TB

DES

< 2 TB

Internet

100 Mbit/s

≥ 5 TB

DES

< 5 TB

Internet
Apart from solving low-bandwidth and high-cost problems, DES is also suitable to the following scenarios:
  • Migration of raw Big Data: Users can transmit raw data of genetics engineering, oil exploration, meteorological research, and Internet of Things (IoT) to Object Storage Service (OBS).
  • Reception of interchangeable data: Instead of transmitting data services over physical storage media, users can upload data to OBS and exchange data on the cloud.
  • Website content migration: Users can transmit static resources, such as static website content, images, scripts, and videos to OBS.
  • Offline data backup: Users can transmit full or incremental backups to OBS to implement reliable and redundant off-site storage. This can be used along with the hybrid cloud backup solution.
  • Disaster recovery: When a large amount of data needs to be prepared for disaster recovery, users can select the cost-effective offline service, DES, for initial synchronization.