dection 5Storage Devices.docx

Now notice that its about 40 gigs total size and of

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storage. Now, notice that it's about 40 gigs total size, and of those 40 gigs, about 25 gigs are still free.We're well under 50% utilization on the hard disk drive. We're actually good. This is unusual, however.This is a lab system that doesn't actually get used for much of anything.
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On a real system, in a production environment that an end user has been using for months and months and months, or even years, you'll see, most of the time, that the utilization bar is probably right up around here because end users use disk space like water. They just use it, use it, use it, and you can never have enough. That's because, notice over here, that on our system drive we have a folder called Users, and within Users, we have all the user profile directories for each user on the system, so when this user downloads video files from the web or music files from the web, well guess where those files go? Right on our C: drive, and so the C: drive always gets clogged up with files. Now this principle applies to not just the system drive, but any hard disk drive on the system.Anytime you see a hard disk drive that is being over- utilized, it's going to perform poorly, so what do you do in that situation? Well, you have two different options. One is to go through and delete a lot of the files that aren't actually needed anymore, or you need to migrate to a larger hard disk drive.We're going to kind of take a look at the first option in this demonstration. Now, understand that Windows provides a utility called the Disk Cleanup utility that will go through and delete a lot of the unnecessary files that are created and stored by the Windows operating system itself on your hard disk drive, and there are actually, sometimes, a lot of them. To do this, you right click on the drive, and then click on Properties, and then you look at the General tab. Now notice on the General tab, it provides us with disk utilization statistics that tells us how much space is currently in use, storing files on this volume, and here's how much free space is currently available, and as we've said earlier, this drive's in pretty good shape, it's not being over-utilized. Down here, we see the total capacity of the hard disk drive and we also see the Disk Cleanup utility. I'm going to go ahead and click on that option, and when I do, it's going to go through and analyze the hard disk drives. It's going to look for files that Windows has created that aren't actually needed anymore and that can be deleted from the system. Over here on the Disk Cleanup tab, you can see a list of different file categories and how large the files are in each of these categories. We have our Setup Log Files, we have our Downloaded Program Files, Temporary Internet Files, Offline Web Pages. Down here, we have the Recycle Bin, some Temporary files and our Thumbnails. Now notice not all of these files are selected by default. If I'm cleaning up a hard disk drive, I usually go through and mark all of thesebecause, usually, you don't need any of these files. They're just taking up space.
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