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# Create a file system tree quota

Network-attached storage is a file-level storage architecture that makes stored data more accessible to networked devices.

## About this task

See Understanding PowerMax File for storage systems for an overview of PowerMax File.

Tree quotas limit the total amount of storage that is consumed on a specific directory tree. You can use tree quotas to:

- Set storage limits on a project basis. For example, you can establish tree quotasfor a project directory that has multiple users sharing and creating files in it.
- Track directory usage by setting the tree quota hard and soft limits to 0 (zero).

| NOTE: If you change the limits for a tree quota, the changes take effectimmediately without disrupting file system operations.

## Steps

1. Select a storage system that supports PowerMax File.
2. Select Storage > File.
3. Select the FILE SYSTEMS tab.
4. Click VIEW ALL DETAILS.
5. Select the TREE QUOTAS tab.
6. Click Create.
7. Configure the Enforce User Quotas setting.
8. Type values for path and description.
9. Configure the grace period for quotas.

   The Quota Grace Period, provides the ability to set a specific grace period to each tree quota on a file system. The grace period counts down the time between the soft and hard limit, and alerts the user about the time remaining before the hard limit is met. If the grace period expires you can not write to the file system until more space has been added, even if the hard limit has not been met.

   You can set an expiration date for the Grace Period. The default is 7 days, alternatively you can set the Grace Period expiration date to an infinite amount of time and the Grace Period will never expire, or for specified number of days, hours or minutes. Once the Grace Period expiration date is met, the Grace Period will no longer apply to the File System directory.

10. Configure the storage limits.

    A hard limit is an absolute limit on storage usage. If a hard limit is reached for a user quota on a file system or quota tree, the user cannot write data to the file system or tree until more space becomes available. If a hard limit is reached for a quota tree, no user can write data to the tree until more space becomes available.

    A soft limit is a preferred limit on storage usage. The user is allowed to use space until a grace period has been reached. The user is alerted when the soft limit is reached, until the grace period is over. After that, an out of space condition is reached until the user gets back under the soft limit.

11. Click OK.

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