COS offers the following two migration methods to help you quickly migrate data in a non-Tencent Cloud storage platform to COS.
| Migration Method | Interactivity | Threshold for Large/Small Files | Concurrence | HTTPS Secure Transfer |
|---|---|---|---|---|
| Migration Service Platform (MSP) | Visual operations | Default configuration | The same for all files | Enabled |
| COS Migration | Non-visual operations by modifying configuration files | Customizable | Different for large and small files | Optional; disabling it can speed up migration |
Both migration methods support viewing data migration progress, checking file consistency, uploading again after failure, resuming upload from breakpoint and other features, which can meet your basic migration requirements. However, the two differ in interactivity, specific features, and other aspects as shown in the table above. You can choose an appropriate method in light of the comparisons.
MSP is a platform that integrates multiple migration tools and provides visual interfaces to help you monitor and manage large-scale data migration tasks with ease. The File Migration Tool on it can help you migrate data from various public clouds or data origin servers to COS.
The steps are as follows:
For more information, please see the following documents:
During data migration, how fast the data source can be read depends on the network connection, and selecting a higher QPS concurrence value when creating a file migration task will help speed up the migration.
COS Migration is an all-in-one tool integrating COS data migration features. You can migrate data to COS quickly after completing simple configurations.
The steps are as follows:
For more information, please see COS Migration Tool.
Below describes how to configure COS Migration to maximize the migration speed:
[common] section of the config.ini configuration file:| Parameter Name | Parameter Description |
|---|---|
| smallFileThreshold | Threshold for small files. If the size of a file is higher than or equal to this threshold, multipart upload will be used. The default value is 5 MB. |
| bigFileExecutorNum | Concurrence of large files, which is 8 by default. If COS is connected to over the public network with low bandwidth, reduce this value. |
| smallFileExecutorNum | Concurrence of small files, which is 64 by default. If COS is connected to over the public network with low bandwidth, reduce this value. |
| executeTimeWindow | This parameter defines the time range when the migration tool will execute a task every day, which will enter sleep mode at other times. In sleep mode, the migration will be paused and the migration progress will be retained until the next time window when the migration will be resumed automatically. |
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