Amazon DataSync quotas - Amazon DataSync
Storage system, file, and object limitsDataSync task quotasDataSync Discovery quotasRequest a quota increase
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Amazon DataSync quotas

Find out about 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 task quotas

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

Resource Quota Can you increase the quota?

Maximum number of tasks you can create

100

Yes

Maximum number of files, objects, or directories per task when transferring data between self-managed storage or other cloud and Amazon services

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 transferring 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.

Maximum number of files, objects, or directories per task when transferring data between Amazon storage services

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 number of files, objects, or directories per task when running DataSync on an Amazon Snowcone device

200,000

No

Maximum throughput per task

10 Gbps (for transfers that use a DataSync agent)

No

5 Gbps (for transfers that don't use a DataSync agent)

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

DataSync Discovery quotas

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

Resource Quota Can you increase the quota?

Maximum number of storage systems you can use with DataSync Discovery

10

No

Maximum number of storage systems a DataSync agent can access at a time

4

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 Amazon Support Center page, sign in if necessary, and then choose Create case.

  2. For Create case, choose Service limit increase.

  3. For Limit type, choose DataSync.

  4. For Region, select your Amazon Web Services Region, and for Limit, select the quota that you want to increase.

  5. Fill in the case description, and then choose your preferred method of contact.

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