Should Consistency Check (CC) Corrections Be Considered a Sign of RAID Corruption?

A system with an Intel® RAID Controller RS3DC080 is running a weekly consistency check that returns around 20-30 corrections every time it runs. Is this expected behavior?

• A Consistency Check (CC) is a maintenance operation that verifies all stripes within a virtual drive (VD) configured with a redundant RAID level are consistent and, when possible, automatically corrects any detected inconsistencies. For RAID 1 drive groups, the CC process confirms that the mirrored data is identical across both drives for every stripe.
• When a CC is performed for the first time on a RAID volume that has not been fully initialized, it is normal to encounter CC corrections or errors. These findings are expected and do not necessarily indicate a hardware failure or a corrupted RAID array.
• While occasional inconsistencies discovered during a CC are not uncommon, repeatedly detecting and correcting inconsistencies during successive periodic CC operations may warrant further investigation, as this could indicate an underlying issue with the RAID subsystem, storage devices, controller, or data integrity.

For more information, refer to the Intel® RAID Software User Guide for full featured and entry level RAID controllers