# Running the Consistency Check

The consistency check operation verifies the correctness of the data in virtual drives that use RAID levels 1, 5, 6, 10, 50, 60, 1E, and Spanned RAID 1E configurations. For example, in a system with parity, checking consistency means calculating the data on one drive and comparing the results to the contents of the parity drive. You should periodically run a consistency check on fault-tolerant virtual drives.

Because RAID 0 and RAID 00 does not provide data redundancy, you cannot run a consistency check on these RAID volumes.

To run a consistency check, you must first set the consistency check properties, and then you can either schedule a consistency check to be run at a defined interval chosen by you or you can start the consistency check operation immediately.

- Setting the Consistency Check Properties
- Scheduling a Consistency Check

Parent topic: Managing Controllers