Create an Amazon FSx for Windows File Server file system

Your Amazon FSx file system and your FSx File Gateway must be owned by the same AWS account and located in the same AWS Region.

Each gateway can support five attached file systems. When attaching a file system, the Storage Gateway console notifies you if the selected gateway is at capacity. In that case, you must choose a different gateway or detach a file system before you can attach another one.

FSx File Gateway supports soft storage quotas (issuing warnings when users surpass their data limits), but does not support hard quotas (enforcing data limits by denying write access). Soft quotas are supported for all users except the Amazon FSx admin user. For more information about setting up storage quotas, see Storage quotas in the Amazon FSx for Windows File Server User Guide.

We don't recommend using Microsoft Distributed File System (DFS) to redirect users to your Amazon FSx file system through FSx File Gateway. Instead, configure DFS to redirect directly to the Amazon FSx file system in the AWS Cloud as described in Grouping multiple file systems with DFS Namespaces in the Amazon FSx for Windows File Server User Guide.

Some file operations on the FSx File Gateway, such as top-level folder renames or permission changes, can result in multiple file operations that lead to a high I/O load on your FSx for Windows File Server file system. If your file system doesn't have enough performance resources for your workload, the file system might delete shadow copies because it prioritizes availability for ongoing I/O over historical shadow copy retention.

In the Amazon FSx console, check the Monitoring and performance page to see if your file system is under-provisioned. If it is, you can switch to SSD storage, increase throughput capacity, or increase SSD IOPS to handle your workload.