How Do I Speed Up Migration?

Improve your network speed. You can test the network performance from the source server to the target server on Huawei Cloud. For details, see How Do I Test the Network Bandwidth Between the Source and Target Servers Using iPerf? If the network speed is less than 500 kbit/s, check the following items:
- If the source server is in a data center, check the bandwidth, switches, routers, security devices (such as firewalls), network lines, and network protocols between the source server and the Internet. If there are any issues, contact network engineers. It is recommended that the network speed from the source server to Huawei Cloud over the Internet be at least 10 Mbit/s.
- Check the outbound bandwidth of the source server and the inbound bandwidth of the target server. Increase the smaller bandwidth or both as needed. For the influence of bandwidth on migration duration, see Table 1.
- Check that the OS settings of the source and target servers. In Windows, you can run perfmon to invoke Performance Monitor to monitor the network. In Linux, you are advised to use the sar tool to monitor the network and use /proc/net/dev to monitor the NIC speed. If the network is slow, the OS configuration may be incorrect. Note that your OS services and processes cannot limit the NIC speed.
Delete any files you no longer need from the source server before migration.
Check the I/O read and write performance and CPU performance of the source server. In Windows, you can run perfmon to invoke Performance Monitor to monitor the CPU and I/O read and write performance. In Linux, you can use top or ps to monitor the CPU, and use iostat or iotop to monitor the I/O performance. If the I/O and CPU performance of your source server is poor, you are advised to increase the I/O and CPU resources or reduce the workloads on the source server.

Parent topic: Migration Duration

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