Steps to Create Spanned Volume

What do you understand by Spanned volume?

Basically, a spanned volume is a dynamic volume which comprises of disk space on more than one physical disk. Here you can extend it beyond additional disks so as to create a spanned volume. You can also create spanned volume in the unallocated space that is available on a dynamic disk. So in order to create a spanned volume, you need at least two dynamic volumes so as to startup; there is a provision of spanned volume extension of 32 dynamic disks. Moreover spanned volumes are not fault tolerant. In this post discover how to create spanned volume.

Note: For creating a spanned volume, you should be backup operator or administrator

How to create a spanned volume using Windows interface?

Point # 1: Go to Disk Management, and then right click on the unallocated space on one of the dynamic disks which are responsible for creating spanned volume

Point # 2: click on New Spanned Volume

Point # 3: Just go on following the instructions and you are done

How to create the spanned volume using the command line?

  1. All you need to do is open the command prompt and type diskpart
  2. Here you need to type list disk. You need to make a note of the number of the disk where you want to generate a simple volume
  3. Again on the DISKPART prompt, type create volume simple [size =<size>][disk=<disknumber>]
  4. Go to the DISKPART prompt, type list volume. All you need to do is make a note of the number of simple volumes which you wish to generate onto another disk
  5. Go to the DISKPART prompt and type select volume <volumenumber>. Get the simple volume number that you wish to extend onto other disks
  6. At DISKPART prompt, you have to type list disk. It is recommended that you should note the number of disks you wish to extend the simple volume on other disks
  7. Again at the DISKPART prompt, type extend [size=<size>] {disk=<disknumber>}. This extends the selected volume on other related disk number makes the suitable extension size = size megabytes (MB)

Understanding the commands mentioned above:

  • list disk: It is responsible for displaying the list of disks and information such as size, amount of available free space; i.e. disk is basic or dynamic and whether the disk makes use of master boot record (MBR) or GUID partition table (GPT). The asterisk mark indicated that it has been focused.
  • create volume simple: it is responsible for creating a simple volume. As soon as the volume is created the focus will be shifted to the new volume
  • list volume: it is used for displaying the list of basic and dynamic volumes on all the available disks.
  • select volume: it has specific volume and volume number is the volume number. If there is no volume specification then select command lists the current volume with focus. Basic volumes need unallocated space on the same disks itself. A dynamic simple / spanned volume can be easily extended to empty space onto available dynamic disk.
  • extend: if you have formatted the partition with the help of NTFS file system then you can easily extend it to occupy larger partition. If it is not formatted with NTFS and done with any other file system then this command fails to work indicating a no change to the partition.

In this way, the above-mentioned steps help you to store your data securely onto other storage holding the dynamic disks