This section explains how to create, modify, and delete directory quotas by using the Qumulo Core Web UI and how to use the Cluster Alerts for Qumulo script to manage cluster quota notifications.

In Qumulo Core, directory quotas are designed to strike a balance between the traditional approaches of hard quotas (that block operations as soon as the directory reaches a set limit) and soft quotas (that only warn about the directory reaching a set limit).

When you create a directory quota, Qumulo Core checks the directory tree every few seconds for usage and marks the directory as full and read-only when it reaches its quota. This design often permits a client to finish writing a file, while still preventing the directory’s usage from expanding indefinitely.

To Create a Directory Quota

  1. Log in to the Qumulo Core Web UI.

  2. Click Sharing > Quotas.

  3. On the right side of the Storage Quotas page, click Create Quota.

  4. In the Create Quota dialog box:

    1. Enter the Path to the directory to which to add a quota.

    2. Enter the quota Limit and enter the units.

    3. Click Save.

To Modify a Directory Quota

  1. Log in to the Qumulo Core Web UI.

  2. Click Sharing > Quotas.

  3. For a storage quota, in the Actions column, click Edit .

  4. In the Edit Quota dialog box, change the quota limit and click Save.

To Delete a Directory Quota

  1. Log in to the Qumulo Core Web UI.

  2. Click Sharing > Quotas.

  3. For a storage quota, in the Actions column, click Delete .

  4. In the Delete quota for path? dialog box, click Yes, Delete.

Configuring Email Notifications for Cluster Quotas

For information about configuring email notifications for your cluster’s quotas, see Cluster Alerts for Qumulo on GitHub.

For an example configuration, see example_config.json.