Article ID: 000057984 Content Type: Maintenance & Performance Last Reviewed: 10/27/2022

Are Consistency Check (CC) Corrections Signs of a Corrupted RAID System?

Environment

RAID 1, 5, 6, 10, 50, or 60 configurations

OS Independent family

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Summary

Information of RAID event messages.

Description

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?

Resolution
  • Consistency Check (CC) is an operation that verifies that all stripes in a virtual drive (VD) with a redundant RAID level are consistent and that automatically fixes any errors. For RAID 1 drive groups, this verifies correct mirrored data for each stripe
  • When CC is first run on a RAID volume that has not been fully initialized, CC errors are expected, and this is not an indication of a failure.
  • It is not uncommon to find inconsistencies for a VD, however, if inconsistencies is always found in periodic CC, there might be an issue.
Additional information

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

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