Quotas

Following, you can find out about quotas when working with Amazon FSx for Windows File Server.

Quotas that you can increase

Following are the quotas for Amazon FSx for Windows File Server for each AWS account, per AWS Region, that you can increase.

Resource	Default	Description
Windows file systems	100	The maximum number of Amazon FSx for Windows Server file systems that you can create in this account.
Windows throughput capacity	10240	The total amount of throughput capacity (in MBps) allowed for all Amazon FSx for Windows file systems in this account.
Windows HDD storage capacity	524288	The maximum amount of HDD storage capacity (in GiB) allowed for all Amazon FSx for Windows File Server file systems in this account.
Windows SSD storage capacity	524288	The maximum amount of SSD storage capacity (in GiB) allowed for all Amazon FSx for Windows File Server file systems in this account.
Windows total SSD IOPS	500,000	The total amount of SSD IOPS allowed for all Amazon FSx for Windows File Server file systems in this account.
Windows backups	500	The maximum number of user-initiated backups for all Amazon FSx for Windows File Server file systems that you can have in this account.

To request a quota increase

1. Open the Service Quotas console.

2. In the navigation pane, choose AWS services.

3. Choose Amazon FSx.

4. Choose a quota.

5. Choose Request quota increase, and follow the directions to request a quota increase.

6. To view the status of the quota request, choose Quota request history in the console navigation pane.

For more information, see Requesting a quota increase in the Service Quotas User Guide.

Resource quotas for each file system

Following are the quotas on Amazon FSx for Windows File Server resources for each file system in an AWS Region.

Resource	Limit per file system
Maximum number of tags	50
Maximum retention period for automated backups	90 days
Maximum number of backup copy requests in progress to a single destination Region per account.	5
Minimum storage capacity, SSD file systems	32 GiB
Minimum storage capacity, HDD file systems	2,000 GiB
Maximum storage capacity, SSD and HDD	64 TiB
Minimum SSD IOPS	96
Maximum SSD IOPS	400,000
Minimum throughput capacity	8 MBps
Maximum throughput capacity	12,288 MBps
Maximum number of file shares	100,000

Additional considerations

In addition, note the following:

• You can use each AWS Key Management Service (AWS KMS) key on up to 125 Amazon FSx file systems.

• For a list of AWS Regions where you can create file systems, see Amazon FSx Endpoints and Quotas in the AWS General Reference.

• You map your file shares from Amazon EC2 instances in your virtual private cloud (VPC) with their Domain Name Service (DNS) names.

Quotas specific to Microsoft Windows

For more information, see NTFS limits on the Microsoft Windows Dev Center.