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EMC CLARiiON Disk Subsystems Support



EMC² Clariion Installation & Maintenance 

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 Clariion CX


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URGENT : data corruption and data lost risks on Clariion CX4 running R30-508 and earlier.

Regarding the ETA emc258303, the CX4 must be upgraded to the R30-509 (

In case of data corruption, the Clariion logs show "Coherency error detected" messages. In that case, you must apply the following action plan :

  1. Upgrade the CX4 to the R30-509
  2. Run a file check from the connected hosts to all Luns affected by the "Coherency error detected"
  3. Restore corrupted files


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