In this example instead of using a circle to

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In this example, instead of using a circle to represent my hard disk, we use a linear line to represent the hard disk. Then we'll add the existing partitions. Here I have the C drive, along with some free space and I have a D drive assigned, along with more additional space. Let's squeeze another one in there on the end. We'll have an E drive with some more free space. And all of these partitions exist on the same physical disk. When you extend the volume, you simply take some free space and add that to an existing volume.So for instance, for my D volume I could extend that to occupy the additional free space that was next to it. And now I have a larger volume than I originally started with.
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When extending volumes this way you need to be aware of where the location of the free space is in relation to the drive that I want to expand. Contiguous Space 3:02-3:28 Contiguous space is free space that is directly next to an existing volume. So this free space here is contiguous to my C volume. This free space here is contiguous or next to the E volume. Also, if this disk is a basic disk, I can only extend other partitions to contiguous space. For example, I can take my E drive and extend it to the space that is here, but I cannot extend my D drive to the free space on the end. Non-contiguous Space 3:29-4:20 Non-contiguous space is free space that is not directly next to the volume that I want to expand. So this free space here is not contiguous to the E drive because it is not next that drive. And similarly, this free space here is not contiguous to the C drive. However, if I were to upgrade this basic disk to a dynamic disk, I could now extend volume to non-contiguous space on the same disk. For instance, my D drive could use this space on the end of the disk. But the rule about this system partition remains. Even on a dynamic disk, my C drive cannot be extended to any free space that is not contiguous. One of the rules when extending an existing volume is that the system drive can only be extended to free space that is contiguous to that drive. So in this case I can extend my C drive to the free space here, but I cannot extend it to the free space on the end of the disk. Adding a Second Disk 4:21-5:11 In addition to using free space in the same disk, I can add a second disk and create partitions and free space on that disk. I can also take an existing volume on one disk and extend it to free space on a different disk. Using the contiguous and non-contiguous rules, you can determine how to extend your volumes to the second disk. If this were a basic disk I can only extend my volume to contiguous free space. Extending onto a separate disk is not allowed when the disk is a basic disk. However, if I have a dynamic disk, then I can extend my volume to free space on a separate disk. This configuration is known as a spanned volume. It contains space from two different physical hard drives.
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