Add additional drive to RAID 5

Posted on 2006-06-06
Last Modified: 2010-04-03
Hello, I am running windows 2003 server. I currently have 3 72gb disks, raid 5 configuration. We are running out of space on this server. I have  available drive bay. Is it possible to just add another 72gb hard drive to this array to gain more space WITHOUT reformatting/reconfiguring server ?
I just want to be able to add more space and not have to redo that whole server. Any takes ?
Question by:itly09
    LVL 95

    Expert Comment

    by:Lee W, MVP

    It depends if the RAID controller and what drive you want to expand.  Some RAID controllers support dynamically expanding the array.  Doing so only expands the HARDWARE array, it does not expand the logical drives within Windows.  For that you have to use DISKPART command line utility.  HOWEVER, DISKPART cannot expand the c: drive, only non system drives can be expanded.

    Author Comment

    So even if my raid controller could do this, your saying I would still have to extend that drive in windows ?
    LVL 95

    Accepted Solution

    Yes.  The RAID controller (as far as I've ever seen) cannot extend the logical Windows partitions.  It MAY be possible to use windows based RAID controller management software could do that, but I've never seen any that could.

    Would help if you posted the RAID controller your using and which drive(s) you want to expand.  We MAY be able to provide further information.

    Author Comment

    Thats ok. I got the answer I was looking for. I just didn't want to spend Countless hours trying if it can't be done.

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