The SmartQuotas feature enables you to limit the storage that is used for each QVMS Recorder. It presents a view of available storage that is based on the assigned quota to the Recorder. SmartQuotas enables each Recorder to calculate its available disk space and react appropriately.
To better cache the meta data associated with SmartQuotas, the Dell Technologies Safety & Security Lab recommends using two SSD drives per node where possible. The second SSD drive provides no performance gain with A-series clusters.
Without SmartQuotas, the QVMS administrator must anticipate the total write rate to the cluster and adjust the Min Free Space on each Recorder accordingly. A miscalculation can result in lost video. SmartQuotas resolves the issues that can be caused by manual calculations.
Configure SmartQuotas when more than one Recorder is writing to the PowerScale cluster, or when other users share the cluster. Enable SmartQuotas and define a quota for each share or directory.
Configure the SmartQuotas setup with the following settings:
- Configure a hard share limit threshold to the Recorder video files.
- Define OneFS to show and report the available space as the size of the hard threshold.
- Set the usage calculation method to show the user data only.
- From the OneFS GUI, select .
- On the Storage Quotas & Usage page, click Create a storage quota.
- In the Directory path field, click Browse, and then select the share directory.
- Define the SmartQuotas limit and set the threshold:
- Select Specify storage limits.
- Select Set a hard storage limit.
- Type the hard limit value.
- Select the size qualifier, typically TB.
- Select Size of hard threshold for Show Available Space as:.
- Click Save.
- Repeat the process for the remaining shares.