HD Failure - how serious are Multi Zone errors?

Discussion in 'Mac mini' started by pianoman88, Apr 9, 2014.

  1. pianoman88 macrumors regular

    Aug 20, 2010
    I own a 2012 Mac Mini Server. I recently added an external Raid 0 array of SSDs and decided to check my hard drives using Trim enabler.

    I was surprised to discover high error rates on one of the drives (see images). I'm not certain what a Multi Zone Error rate is - or a lot of what is listed - but I'm wondering is this qualifies for a replacement - single or both drives?

    It's still under Apple Care.


    Attached Files:

  2. jimj740 macrumors regular


    Jul 25, 2013
    Pining for the company that once gave us Clarus
    Multi-zone error rate is an indication of write failures; generally these are recoverable errors through retry and/or remapping of sectors.

    There is not a "hard" number for acceptable write failures; certainly less is better, and frequency of failure and/or trends in failure are important indicators of a drive that is deteriorating.

    My advice: make sure you are performing regular backups and monitor this. It is unlikely that Apple will replace the unit until it has a hard failure, but I cannot say this for certain.

    Good luck!


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