Windows: Disk Usage

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Operating Systems and You: Becoming a Power User

3975개의 평가

Google

Operating Systems and You: Becoming a Power User

3975개의 평가

Specialization Google IT Support Professional Certificate에서 5의 강좌 3

In this course -- through a combination of video lectures, demonstrations, and hands-on practice -- you’ll learn about the main components of an operating system and how to perform critical tasks like managing software and users, and configuring hardware. We’ll wrap up with an example of how you might see this content show up in an interview setting. By the end of this course you’ll be able to: ● navigate the Windows and Linux filesystems using a graphical user interface and command line interpreter. ● set up users, groups, and permissions for account access. ● install, configure, and remove software on the Windows and Linux operating systems. ● configure disk partitions and filesystems. ● understand how system processes work and how to manage them. ● work with system logs and remote connection tools. ● utilize operating system knowledge to troubleshoot common issues in an IT Support Specialist role.

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Filesystems

In the fourth week of this course, we'll learn about how filesystems work for Windows and Linux OS. We'll learn about filesystem types and why they're different for certain OS. We'll learn about disk partitioning and virtual memory and why these are so important for an IT Support Specialist's role. We'll also cover ways mount and unmount filesystems, read disk usage, and repair filesystems. By the end of this module, you will partition and format a disk drive yourself in both Windows and Linux.

Module Introduction0:49

Review of Filesystems2:33

Disk Anatomy3:02

Windows: Disk Partitioning and Formatting a Filesystem6:59

Windows: Mounting and Unmounting a Filesystem0:51

Linux: Disk Partitioning and Formatting a Filesystem6:01

Linux: Mounting and Unmounting a Filesystem3:42

Windows: Swap3:44

Linux: Swap2:18

Windows: Files6:02

Linux: Files2:56

Windows: Disk Usage3:46

Linux: Disk Usage1:44

Windows: Filesystem Repair4:20

Linux: Filesystem Repair1:45

Ben Passion1:16

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Now that we've taken a good,

hard look at files in different file systems,

let's turn our attention to how we can monitor

the number and size of those files in Windows.

You seen how there are loads of third party programs

out there to partition and format discs on Windows.

Well, there are also lots of applications you can download that

can check and visualize disk usage on a Windows machine.

But you can use the disk management council we examined in

an earlier lesson to get a sense of your disk capacity usage.

To check disk usage,

you can open up the computer management utility.

Then head to the disk management console.

From there, right click on the partition you're interested in and select properties.

This will bring up the general tab where you can

see the used and free space on the drive.

In addition to using this graphical user interface to check the disk usage,

Windows provides a command line utility called

disk usage as part of it system internal tool offering.

That DU utility can print out the usage of

a given disk and tell you how many files it has.

It can be useful for creating scripts which might need text

based output instead of visual reports like the pie chart in disk management.

You can find a link to the DU tool in the next supplemental reading.

On the same tab in the disk management console,

you might notice a button that says disk cleanup.

If you press this button,

Windows will launch a program called CleanManager.exe

which will do a little housekeeping on your hard drive to try and free up some space.

This housekeeping includes things like deleting temporary files,

compressing old and rarely used files,

cleaning up logs and emptying the recycle bin.

Another task related to disk health is called defragmentation.

The idea behind disc defragmentation is to take all the files

stored on a given disk and reorganize them into neighboring locations.

Having files ordered like this will make life easier for rotating

hard drive disks that use an actuator arm to write to and read from a spinning disk.

The head of the actuator arm will actually travel less to read the data it needs.

I should call out that this is less of a benefit for solid state drives since

there's no physical read write head that needs to move around a spinning disk.

For these kinds of drives,

the operating system can use a process called

Trim to reclaim unused portions of the solid state disk.

We won't go into details of how trim works but it's good to know that exists.

I've included a link to more information on trim in the reading right after this video.

Defragmentation in windows is handled as a scheduled task.

Every so often the operating system will

defragment the drive automatically and you don't need to

worry about it but you can manually defragment a drive in Windows if you want to.

To kick off a manual defragmentation,

open up the disk defragmenter tool bundled with the OS.

Type disk defragmenter.

When it launches,

you'll be given a list of disks which can be defragmented along with buttons to analyze

the potential gains from running a defrag or

defragmentation and to run the defrag itself.

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