# Quotas
<a name="limits"></a>

Learn about quotas when working with Amazon File Cache.

**Topics**
+ [Quotas that you can increase](#soft-limits)
+ [Resource quotas for each cache](#limits-file-cache-resources)
+ [Additional considerations](#limits-additional-considerations)

## Quotas that you can increase
<a name="soft-limits"></a>

The following are quotas for Amazon File Cache per AWS account, per AWS Region, which you can increase.


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| Resource | Default | Description | 
| --- | --- | --- | 
|  Lustre Cache\$11 caches  |  100  |  The maximum number of Amazon File Cache caches with cache type `Lustre` and deployment type `Cache_1` that you can create in this account.  | 
|  Lustre Cache\$11 storage capacity  |  100800  |  The maximum amount of storage capacity (in GiB) that you can configure in this account for all Amazon File Cache caches with cache type `Lustre` and deployment type `Cache_1`.  | 

**To request a quota increase**

1. Open the AWS Management Console at [https://console.aws.amazon.com/fsx/](https://console.aws.amazon.com/fsx/).

1. In the navigation pane, choose **FSx on Service Quotas**.

1. Choose a Lustre Cache quota.

1. Choose **Request increase at account-level**, and follow the directions to request a quota increase.

1. To view the status of the quota request, repeat the first three steps and see the **Recent quota increase requests** pane for details.

For more information, see [Requesting a quota increase](https://docs.aws.amazon.com/servicequotas/latest/userguide/request-quota-increase.html) in the *Service Quotas User Guide*.

## Resource quotas for each cache
<a name="limits-file-cache-resources"></a>

The following are limits on Amazon File Cache resources for each cache in an AWS Region.


****  

| Resource | Limit per cache | 
| --- | --- | 
| Maximum number of tags | 50 | 
| Number of file updates from linked S3 bucket per caches | 10 million / month | 
| Minimum storage capacity | 1.2 TiB | 
| Maximum throughput per unit of storage | 1000 MBps | 

## Additional considerations
<a name="limits-additional-considerations"></a>

In addition, note the following:
+ You can use each AWS Key Management Service (AWS KMS) key on up to 125 Amazon File Cache caches.
+ For a list of AWS Regions where you can create caches, see [Amazon File Cache availability](what-is.md#cache-availability).