Remove smaller drives from RAID 5 so that larger drives take over

Posted on 2004-11-08
Last Modified: 2010-04-03
I have a RAID 5 with 6 drives at 38gb and 6 new drives at 148gb running on a netware 6 server Is there a way to remove the 36gb drives from the stripe set and then expand into the 148s?  
Question by:mdelagarza
    LVL 95

    Expert Comment

    by:Lee W, MVP
    You can remove one drive at a time and let them rebuild onto the drives, one at a time.  BUT, you're not going to expand the RAID that way.  You'll have 6x110GB of unallocated space you can create another RAID for.  If you want to make this a 6x148GB RAID set, you have to backup everything and then replace the drives and restore data.

    Author Comment

    If I remove all of the 36gb drives can I expand the 148s with out destory data?
    LVL 69

    Accepted Solution

    You can't expand the allocated space on each drive to use more than what was allocated originally when you use RAID-5.  As leew said, you have to archive the data, create a new array with the 148GB drives, and then copy the data to the new array.  If your controller supports it, you can keep the original array and add a second array, then copy the data to it.

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