The error checking tool looks and fixes two different

Info icon This preview shows pages 41–42. Sign up to view the full content.

View Full Document Right Arrow Icon
The error checking tool looks and fixes two different things. Lost Clusters 9:26-10:49 The first thing the Error Checking utility does is to look for lost clusters. A lost cluster is a series of clusters on the hard disk drive that are not claimed by a particular file. In this example here, we have two files saved on the hard disk drive. First, we have MyFile.txt saved in these clusters. And we have YourFile.txt saved in these clusters. However, we have these clusters right here that are not claimed by any file. There's still data there but it's unknown as to which file this data belongs to. It could belong to YourFile.txt or MyFile.txt, or it may belong to a different file that we've lost the name of. But somewhere along the line, something got messed up, and the filename that these clusters belong is lost. These are called lost clusters. The Error Checking tool that comes with Windows will try to identify any lost clusters on your hard disk drive and try to repair them. It'll try to figure out which file they actually go with. Sometimes it's able to figure out which file they go to. If the Error Checking utility finds lost clusters but it can't find the file they go to, then it saves the clusters and gives them a filename so they can be accessed using tools within the operating system.Then you can decide where they're supposed to go. However, depending on what type of file the lost clusters were, that may or may not be possible. If it is a text file, as in the examples here, then you can probably pull the data out of them and save it to whatever file it was supposed to go to. If it's binary data, then that's a whole different story. Cross-linked Files 10:50-11:37 The second thing that the Error Checking utility looks for are cross-linked files. A cross-linked file occurs when two files try to claim the same clusters. In this example, we have two files saved on the system. We have MyFile.txt, and we have YourFile.txt. The problem, as you can see, is that YourFile says, "I have all these clusters that belong to me. "These are my clusters where I am saved." Over here, we also have MyFile.txt, and MyFile.txt says, "I have all these clusters, "and I have all these clusters as well." As you can see, these three clusters in the middle are claimed by both files. That is a cross-linked file.Your Error Checking tool will look for any clusters that are cross-linked between two or more different filenames and it'll try to fix them by determining which file those clusters actually belong to, and un-crosslink them. How Often do You Optimize your Storage 11:38-12:59 So the question at this point is how often should you perform these procedures to optimize the storage in your system? Well, from the hardware perspective, you're probably not going to upgrade your hard disk drive and your disk interfaces often because it's expensive, and it takes some time to accomplish. Upgrading your hard disk and disk interfaces may happen every couple of years or so.
Image of page 41

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 42
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern