# Migrating your existing file storage to Amazon FSx for OpenZFS
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The following sections provide information on how to migrate your existing file storage to Amazon FSx for OpenZFS using AWS DataSync, `rsync` or `Robocopy`.
+ **AWS DataSync** – An online data transfer service designed to simplify, automate, and accelerate copying large amounts of data to and from AWS storage services.
+ **rsync** – Remote sync is an open source utility for efficiently transferring and synchronizing files commonly available on most Linux or other Unix-based operating systems.
+ **Robocopy** – Robust File Copy is a command line directory and file replication command set for Microsoft Windows.

Before you begin using the procedures described in the following sections, be sure that the following prerequisites are met:
+ You have created a destination FSx for OpenZFS file system. For more information, see [Creating an Amazon FSx for OpenZFS file system](creating-file-systems.md).
+ The source and destination file systems are connected in the same virtual private cloud (VPC). The source file system can be located on-premises or in another Amazon VPC, AWS account, or AWS Region, but it must be in a network peered with that of the destination file system using Amazon VPC Peering, Transit Gateway, AWS Direct Connect, or Site-to-Site VPN. For more information, see [Access from a different VPC](access-within-aws.md#vpc-peering) and [What is VPC peering?](https://docs.aws.amazon.com/vpc/latest/peering/what-is-vpc-peering.html) in the *Amazon VPC Peering Guide*.

**Topics**
+ [Migrating files with AWS DataSync](migrate-files-to-fsx-datasync.md)
+ [Migrating files with rsync](fsx-migrate-rsync.md)
+ [Migrating files with Robocopy](fsx-migrate-robocopy.md)
+ [Cutting over to your file system](cutover.md)