[ aws . datasync ]



Updates some of the parameters of a previously created location for Server Message Block (SMB) file system access. For information about creating an SMB location, see Creating a location for SMB .

See also: AWS API Documentation

See ‘aws help’ for descriptions of global parameters.


--location-arn <value>
[--subdirectory <value>]
[--user <value>]
[--domain <value>]
[--password <value>]
[--agent-arns <value>]
[--mount-options <value>]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]


--location-arn (string)

The Amazon Resource Name (ARN) of the SMB location to update.

--subdirectory (string)

The subdirectory in the SMB file system that is used to read data from the SMB source location or write data to the SMB destination. The SMB path should be a path that’s exported by the SMB server, or a subdirectory of that path. The path should be such that it can be mounted by other SMB clients in your network.


Subdirectory must be specified with forward slashes. For example, /path/to/folder .

To transfer all the data in the folder that you specified, DataSync must have permissions to mount the SMB share and to access all the data in that share. To ensure this, do either of the following:

  • Ensure that the user/password specified belongs to the user who can mount the share and who has the appropriate permissions for all of the files and directories that you want DataSync to access.

  • Use credentials of a member of the Backup Operators group to mount the share.

Doing either of these options enables the agent to access the data. For the agent to access directories, you must also enable all execute access.

--user (string)

The user who can mount the share has the permissions to access files and folders in the SMB share.

--domain (string)

The name of the Windows domain that the SMB server belongs to.

--password (string)

The password of the user who can mount the share has the permissions to access files and folders in the SMB share.

--agent-arns (list)

The Amazon Resource Names (ARNs) of agents to use for a Simple Message Block (SMB) location.



"string" "string" ...

--mount-options (structure)

Specifies how DataSync can access a location using the SMB protocol.

Version -> (string)

Specifies the SMB version that you want DataSync to use when mounting your SMB share. If you don’t specify a version, DataSync defaults to AUTOMATIC and chooses a version based on negotiation with the SMB server.

Shorthand Syntax:


JSON Syntax:

  "Version": "AUTOMATIC"|"SMB2"|"SMB3"

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See ‘aws help’ for descriptions of global parameters.