Extending partition

Posted on 2011-10-20
Last Modified: 2012-05-12
Hi experts I have a Windows 2008 server the C Drive. is running a space so I'd like to extend the partition and add another hard drive to the server it's running into raid five configuration is this going to  cause me any problems. And is this as easy as adding another drive and just clicking to extended partitions
Question by:fessiambre
    LVL 7

    Expert Comment

    Look out this article

    else if you are affordable go for Softwares like partition magic which makes the process easier.

    Even trial versions can help.
    LVL 46

    Expert Comment

    Would be easier to give you exact answer if you take and post here a screen shot of your Windows Disk Management.
    Normally adding more disks to RAID5 is not a problem. Once you add the disk it will show in Windows Disk Management as free unallocated space right after the last partition on the disk (RAID that Windows considers to be a single HDD).
    There if you have only C: partition on the RAID you can right click on C: and use Extend partition.
    In case you have several partitions on this RAID then you need to use partitioning tools such as Parted Magic 6 or Paragon Partition Manager 11 Server.
    The first is free open source boot CD and the second one is paid version but works in Windows.
    Still post a screen shot.
    LVL 87

    Accepted Solution

    First of all it depends on whether your RAID controller supports expanding it's array by adding a disk. Some controllers support this but require optional hardware, like battery backup and RAM modules which sometimes doesn't come with the default installation. Read up on the functions of your RAID controller to see what is needed and whether it does support expanding the array. If it does support this then it is usually as simple as plugging the new disk in (if it is a system that supports hot-plugging you can do this without shutting the server down), then go into the controller's utility and tell it what it should do with the new HD. It then expands the array on the fly. But before you start it goes without saying that you need a good, tested backup, as when you don't have one it'll be sure to fail (Murphy's Law).

    Once the disk is in the array you can extend the partition via the diskmanagement utility of windows, provided there is no other partition on the same volume after C:\. You can only extend a Partition if there is unpartitioned space right next to the partition you want to extend. Also, if you extend the partition via diskmanagement, leave ca 10MB unpartitioned space, otherwise your OS might no properly reflect the added space when done.

    If there is a partition just after C:\, you need to move it towards the back of the Volume in order to get free space just after C:\. You can't do that with the Built-in tools of Windows. Third party tools that can do that would be the OpenSource and free PartedMagic LiveCD) it includes the Partition Editor icon on the desktop with which you would do this:

    If that CD doesn't recognize your RAID controller properly, you will need a commercial tool for this. Paragon has such tools:
    LVL 87

    Expert Comment

    Sorry, I see now that noxcho has already recommended those tools.
    LVL 18

    Expert Comment

    what RAID Array controller are you using? if its something like an HP then you can extend that on the fly - but you would need to be able to swap out all the disks to do it

    Author Closing Comment

    To all  who contributed thank you very much you're all experts in my opinion. But this was the most comprehensive description and I really appreciate that thank you

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