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NetApp Knowledge Base

E-Series "Isolation of drive causing redundancy mismatch" - AutoSupport Message

Last Updated:

Applies to

  • NetApp E-Series
  • Dynamic Disk Pools (DDP)
  • RAID6 Volume Groups (VG)

Event Summary

The controller detected a data parity mismatch and isolated the mismatch to a single drive.


If the CRITICAL event of Isolation of drive causing redundancy mismatch or Data/parity mismatch on volume gets reported by ASUP, it is required to execute this procedure.


Please contact NetApp Technical Support or log into the NetApp Support Site to create a case. Reference this article for assistance with the solution. 

  • The solution requires Diagnostic-level recovery. 
  • The use of Diagnostic commands and recovery steps is potentially disruptive and should only be used with guidance from NetApp Support. 


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