1 Reply Latest reply: Nov 2, 2012 8:37 PM by Camelot
William Martin1 Level 1 Level 1 (40 points)

An established array on my RAID has sudddenly begun the intilising process. Is this normal? Why would it be doing this now - it was initialised when I set it up so why now?


Also - why does the initialising proces take so incredibly long?!

Mac OS X (10.7.3), lots
  • Camelot Level 8 Level 8 (46,440 points)

    Initializing? that sounds like a problem. Unless you mean either scrubbing/conditioning or rebuilding.


    The former can be initiated via RAID Admin, and makes the XServe RAID check every block on the disk.

    The latter may happen if a disk fails and the data needs to be replicated/rebuilt on a spare drive.


    Initializing, as its name implies, involves setting up an new array. This doesn't usually (ever?) happen on its own, but only at the behest of someone using RAID Admin to manipulate the array.


    As for the duration - if you're using RAID 5, creating the array performs a scrub of each disk to verify its integrity, as well as creating the initial parity data. If you enable the background option, the array is available for use immediately, even while the scrub is progressing.