Home > Storage > PowerScale (Isilon) > Product Documentation > Cloud > PowerScale: CloudPools and Microsoft Azure > WORM integration
Dell PowerScale SmartLock is an optional software feature of OneFS that enables SEC 17-a4 data compliance. In enterprise mode, individual directories can be set up as Write Once, Read Many (WORM) directories. And the data is immutable by everyone except the root account on the cluster once the files have been committed. A PowerScale cluster can also be set up in compliance mode where the root account on the cluster is removed. And no user can change or delete data in WORM-locked folders.
In OneFS versions before OneFS 8.2.0, SmartLink files are not allowed in both enterprise and compliance modes. In OneFS 8.2.0, CloudPools 2.0 and SmartLock integration is as follows: