This storage space if one of the drives in the

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this storage space, if one of the drives in the storage space were to fail, then parity information could be used to reconstruct this file and I would still have access to it. Now let's go ahead and close File Explorer and let's take a look at the storage space itself. Notice over here we have information about the storage pool, which is, as we looked at before, about 94 gigs in size. And we're currently using 4.25 gigabytes of that total pool capacity. And down here, we see information about the storage space that's been defined in this pool. It's been assigned drive letter E, it uses Parody, it's about 61 gigs in size, and it is currently consuming 3 gigabytes of the pool capacity. Now you might be asking, wait a minute, that file we created was actually pretty small, how come we're using 3 gigabytes? Well a lot of that is just overhead for the storage space itself. If we wanted to, we can come down here and click on Physical Drives and we can see each of the drives that are used to create the pool and the storage space. Now, here's one of the great things about a storage space. And that is the fact that if you run out of space for some reason, for example, suppose we're using this storage space to store video files that are being edited and it's just slamming that storage space, it's out, we need more space added to it.Well, with a traditional disk partition and volume, we'd have to back up the data, install a new hard disk drive that's bigger, recreate the volume and then restore the data. That's a big pain. With a storage space, we don't have to do that. All we have to do is add drives to the pool and then change the size of the storage space. Let's go ahead and do that right now. Let's go over here and click on Add Drives. Notice that we have two un-formatted drives still in the system that haven't been allocated to anything. We can go ahead and add them to the existing pool. Click Add Drives. Ok, so those drives have been added to the pool.Notice I didn't have to do anything. I didn't have to back up anything, I didn't have to delete anything,I didn't have to restore anything. The space was just dynamically added and the pool size grew as a result. We're up to 156 gigabytes of pool capacity as a result. We added about 64 gigs of space to the pool. We can now come down here to Physical Drives and click on the drop down list and we can see all five drives currently being used in the pool and the storage space. Now notice that the size of the storage space is still just 61.5 gigabytes. We can change that by coming over here to Change and now we can add some of that new space that we added to the poolto the storage space itself. Now remember even with the additional drives added to the system, we can actually only use 2/3 of the space on those drives for storing files. The other 1/3 of those two drives still needs to be used for Parody. So we can't use all of the available pool capacity for storing files, we can only use some of it. Right now, we're currently using about 92 gigs. So we can
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