Amazon DataSync quotas - Amazon DataSync
Storage system, file, and object limitsDataSync quotasRequest a quota increase
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Amazon DataSync quotas

Find out about resource quotas and limits when working with Amazon DataSync.

Storage system, file, and object limits

The following table describes the limits that DataSync has when working with storage systems, files, and objects.

Description Limit

Maximum total file path length

4,096 bytes

Maximum file path component (file name, directory, or subdirectory) length

255 bytes

Maximum length of Windows domain

253 characters

Maximum length of server hostname

255 characters

Maximum Amazon S3 object name length

1,024 UTF-8 characters

DataSync quotas

The following table describes the quotas for DataSync resources in a specific Amazon Web Services account and Region.

Resource Quota Adjustable

Maximum number of tasks you can create

100

Yes

(Enhanced mode tasks) Maximum number of source and destination objects that DataSync can work with per task execution

For more information, see How DataSync transfers files, objects, and directories

 Virtually unlimited N/A

(Basic mode tasks) Maximum number of source and destination files, objects, and directories that DataSync can work with per task execution between on-premises, self-managed, or other cloud storage and Amazon storage services

For more information, see How DataSync transfers files, objects, and directories

50 million

Important

Remember the following about this quota:

  • If you transfer Amazon S3 objects with prefixes, the prefixes are treated as directories and count towards the quota. For example, DataSync would considers3://bucket/foo/bar.txt as two directories (./ and ./foo/) and one object (bar.txt).

  • If your task is working with more than 20 million files, objects, or directories, make sure that you allocate a minimum of 64 GB of RAM to your DataSync agent. For more information, see agent requirements for DataSync transfers.

Yes

Tip

Instead of requesting an increase, you can create tasks that focus on specific directories using include and exclude filters. For more information, see filtering the data transferred by DataSync.

(Basic mode tasks) Maximum number of source and destination files, objects, and directories that DataSync can work with per task execution between Amazon storage services

For more information, see How DataSync transfers files, objects, and directories

25 million

Important

If you transfer Amazon S3 objects with prefixes, the prefixes are treated as directories and count towards the quota. For example, DataSync would considers3://bucket/foo/bar.txt as two directories (./ and ./foo/) and one object (bar.txt).

Yes

Tip

Instead of requesting an increase, you can create tasks that focus on specific directories using include and exclude filters. For more information, see filtering the data transferred by DataSync.

Maximum throughput per task (for transfers that use a DataSync agent)

10 Gbps

No

Maximum throughput per task (for transfers that don't use a DataSync agent)

5 Gbps

No
Maximum number of characters you can include in a task filter

102,400 characters

Note

If you're using the DataSync console, this limit includes all the characters combined in your include and exclude patterns.

 No
Maximum number of queued executions for a single task 50 No

Maximum number of concurrent Enhanced mode task executions

120

 No
Maximum number of days a task execution's history is retained 30 No

Request a quota increase

You can request an increase for some DataSync quotas. Increases aren't granted right away and might take a couple of days to take effect.

To request a quota increase

  1. Open the Service Quotas console at https://console.amazonaws.cn/servicequotas/.

  2. In the navigation pane, choose Amazon services and then choose Amazon DataSync.

  3. Choose the quota that you want to increase, then choose Request increase at account-level.

  4. Enter the total amount that you want the quota to be, then choose Request.

    If you need to increase a different quota, fill out a separate request.