Home > Storage > PowerScale (Isilon) > Product Documentation > Security and Compliance > Dell PowerScale: SmartLock Best Practices > System clock and compliance clock
In the context of SmartLock, there are two types of clocks: system clock and compliance clock.
The system clock is the standard clock that is common to both Enterprise and Compliance modes. The compliance clock is exclusive to Compliance mode. The compliance clock updates the time in a protected system B-tree entry. Unlike the system clock, the compliance clock cannot be manually modified by the root or compadmin user. This action could lead to the files being released from a WORM state earlier than intended.
To set the WORM compliance clock, use the following command:
# isi worm cdate set
To view the WORM compliance clock, use the following command:
# isi worm cdate view