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It's not a matter of 'if,' it's a matter of 'when.' Sooner or later the hard drive on your computer will die, and the odds are that you will lose all your files stored on that drive.
Of course, there is a number of ways to prevent data loss. You can, for example, keep a current backup of your computer, you can make copies of your files to an external drive, or you can store your data in the cloud. However, similar to previous versions, Windows 10 includes a feature that let you mirror the data on one drive into another to offer data protection from a drive failure.
In Windows, we call the feature 'mirror,' but the concept actually comes from the standard RAID levels, which define a number of techniques to combine multiple hard drives to offer speed, redundancy, or performance.
Jul 18, 2012 If the mirrored volume is done through Windows 7, you can pull one of the hard drives out and move it to another computer, and use the data. I can't really think of a practical reason to do this, but just in case you ever run into the situation of installing a drive from your mirror into a new or different computer, here is how: Install the. Again, you can now install OS X on your mirrored striped RAID set, or simply use it as a data drive. You can also set up a striped mirrored RAID set (as opposed to mirrored striped), just set up two mirrors and stripe those together instead. Functionality and performance will.
On the standard RAID levels, 'mirror' is defined as RAID 1, and it consists of having an exact bit-to-bit replica of the data in another hard drive. Usually, a mirror setup contains two hard drives, but you can always add more, as long you add them in pairs.
- Nov 22, 2019 Before you can establish a mirror, both the primary (source) drive (Disk-0) and the shadow (destination) drive (Disk-1) must be converted to Dynamic. After the disks are Dynamic (after a reboot), you can then establish the mirror. You can do this step with either the Disk Management console or the Diskpart.exe utility.
- I'v tried this on PMG4 using two 6GB HDD's and running Mac OS X Server (10.2 & 10.2.8). Then on an XServe with two 180GB IBM's (why Apple is still using these?) Works great. Disk Utitilty.app sees the RAID, can check it, but it has no clue about the volumes on it. So you have to fsck manually. When journaling is turned on, this is probably not.
In this Windows 10 guide, we'll walk you through the steps to create a mirrored volume on your computer to protect your data from drive failure.
Details before beginning
Before we dive in this guide, it's important to note that to create a mirrored volume on Windows 10, or with any operating system, you'll need at least two physical hard drives. Your second drive should be at least the same size as the original (a larger second drive is okay).
How to create a new mirrored volume
The instructions described below are to create a brand new mirrored volume where neither hard drive have any data.
To create a mirrored volume, do the following:
- Use the Windows key + X keyboard shortcut to open the Power User menu and select Disk Management.
- Right-click one of the empty drives, and select New Mirrored Volume.
- Click Next.
- Select the available drive from the left.
- Click Add.
- Specify the amount of space for the mirrored volume.Important: The volume cannot be larger than the amount of the available space in the smaller hard drive, as you can't mirror data to space you don't have.
- Click Next.
- Assign a drive letter or leave the default settings and click Next.
- Select Format this volume with the following settings option making sure file system is set to NTFS, allocation unit size is set to default, and you enter a name for the volume.
- Check the Perform a quick format option.
- Click Next.
- Click Finish.
- Click Yes to convert the basic disks to dynamic disks, which is a requirement to create a mirrored volume on Windows.
Once the process completes, you'll only see one volume created, and as you store content on the new volume, the data will also automatically get replicated into the secondary drive.
How to create a mirrored volume with data already in the drive
The following instructions explain the steps to set up a mirrored volume when one of the drives already have data on it.
To create a mirrored volume with data already in the drive, do the following:
- Use the Windows key + X keyboard shortcut to open the Power User menu and select Disk Management.
- Right-click the primary drive with data on it, and select Add Mirror.
- Choose the drive that will act as a duplicate.
- Click Add Mirror.
- Click Yes to convert the basic disks to dynamic disks, which is a requirement to create a mirrored volume on Windows.
Can You Set Up Mirrored Drives On Mac Os X
After completing the steps above, Windows 10 will synchronize the data on the primary drive to the second drive. This process can take a long time depending on the data you have stored in the volume.
How to recreate a mirror after drive failure
Once you set up a mirror, if either hard drive fails, you'll still be able to access your data. However, it's highly recommended that you replace the drive as soon as possible.
To recreate a mirror after a drive failure, do the following:
- Use the Windows key + X keyboard shortcut to open the Power User menu and select Disk Management.
- Right-click the hard drive in working conditions on the mirror and select Remove Mirror.
- Select drive labeled Missing.
- Click Remove Mirror.
- Click Yes.
- Right-click the primary drive with data on it, and select Add Mirror.
- Select the new drive that will act as a mirror.
- Click Add Mirror.
- Click Yes to convert the basic disks to dynamic disks, which is a requirement to create a mirrored volume on Windows.
After completing the steps above, Windows 10 will synchronize the data onto the new drive. Then simply repeat the process whenever a drive fails (which hopefully shouldn't be very often).
Wrapping things app
The primary purpose of a mirror setup is to provide data redundancy to protect your files from a hard drive failure. It's not designed to offer speed or performance like other RAID array levels.
Although mirroring can protect your data, it's not a replacement for a data backup. If you accidentally delete a file from one drive, the action will also replicate to the second drive.
Finally, it's worth pointing out that thanks to the Windows 10 flexibility, you can also use Storage Spaces to create a mirrored volume.
Do you use any form of file redundancy on your computer? Tell us in the comments below.
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More on Windows 10 resources
For more tips, coverage, and answers on Windows 10, you can visit the following resources:
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You can make all of your displays mirror each other, or extend your workspace with different apps and windows on each display. If you use an external display with your Mac notebook, you can also use closed-display mode.
Check your requirements
- Check the ports on your Mac to find out whether you need an adaptor.
- Check how many displays your Mac supports: Choose Apple menu > About This Mac, click Support, then click Specifications. On the web page that appears, the number of displays your Mac supports appears under Video Support.
Use extended desktop mode
Maximise your workspace with extended desktop mode, which lets you enjoy full-screen apps and windows on each monitor. Then, use Mission Control to organise apps and windows across your displays. If your Dock is on the bottom of your screen, it appears on any of your displays when you move your pointer to the bottom edge of your display.
Turn on extended desktop mode
- Make sure that your external display is turned on and connected to your Mac.
- Choose Apple menu > System Preferences, then click Displays.
- Click the Arrangement tab.
- Make sure that the Mirror Displays tick box isn’t selected.
Arrange your displays or change your primary display
So that you can move apps and windows across your displays in one continuous motion, arrange your displays to match the setup on your desk. You can also change your primary display, which is where your desktop icons and app windows first appear.
- Choose Apple menu > System Preferences, then click Displays.
- Click the Arrangement tab.
- To change the position of a display, drag it to the desired position. A red border appears around the display as it's moved.
- To set a different display as the primary display, drag the menu bar to the other display.
Use video mirroring
With video mirroring, all of your displays show the same apps and windows.
Turn on video mirroring
- Make sure that your external display is turned on and connected to your Mac.
- Choose Apple menu > System Preferences, click Displays, then click the Arrangement tab.
- Make sure that the Mirror Displays tick box is selected.
Use AirPlay
With Apple TV, you can mirror the entire display of your Mac to your TV, or use your TV as a separate display. To turn on AirPlay, follow these steps:
- Make sure that your TV is turned on.
- Choose in the menu bar, then choose your Apple TV. If an AirPlay passcode appears on your TV screen, enter the passcode on your Mac.
- Mirror your display or use your TV as a separate display:
- To mirror your display, choose , then choose Mirror Built-in Display.
- To use your TV as a separate display, choose , then choose Use As Separate Display.
- To turn off AirPlay, choose , then choose Turn AirPlay Off.
If you don't see in the menu bar, choose Apple menu > System Preferences, click Displays, then select the 'Show mirroring options in the menu bar when available' tick box.
Learn more about how to AirPlay video from your Mac.