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To keep multiple folders and thousands of files synchronised can be a real headache without a convenient method to automate the task. Consider this scenario: you have several folders on your Mac that must be kept fully synchronised with an external USB memory stick, hard drive, or simply with another computer or mobile phone. I have two external hard drives (ExFAT formatted) which I need to keep in sync. Specifically, drive B must mirror the contents of drive A and drive A must not be modified. How can I do this without having to do a full copy of drive contents every time? I'm on OS X 10.10. This is simply for periodically backing up the contents of drive A. Jan 20, 2020 Auto Sync: This software a feature called Schedule, which allows you to auto sync files to external hard drive with a regular interval, such as, daily, weekly, monthly. Fast Synchronization: This feature is used to only sync changed files in the source and can help you save sync time and disk space.
The app's main function is: basic backup/synchronization of one or more source folders to a target storage device. Copying only happens in 1 direction. Possible data storage devices are: - A hard drive of the computer. An external USB storage device: USB sticks, USB hard drives or SSD drives. A network storage station: a shared network drive. Enter to Search. To an external hard drive is an exact copy. So even if your computers completely crash, you can immediately access your docs by connecting the drive to any available. Jun 11, 2017 Is there Mac software I can use to easily create an exact duplicate backup of an external hard drive? Basically, I put all my photos from jobs on an external hard drive for archiving that I keep.
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Synchronize Hard Drive Mac Software
Disk Utility User Guide
You can use Disk Utility to create a disk image, which is a file that contains other files and folders.
Note: You can burn information to a CD or DVD using the Burn command in the Finder. See Burn CDs and DVDs.
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Create a blank disk image for storage
You can create an empty disk image, add data to it, then use it to create disks, CDs, or DVDs.
- In the Disk Utility app on your Mac, choose File > New Image > Blank Image.
- Enter a filename for the disk image, add tags if necessary, then choose where to save it.This is the name that appears in the Finder, where you save the disk image file before opening it.
- In the Name field, enter the name for the disk image.This is the name that appears on your desktop and in the Finder sidebar, after you open the disk image.
- In the Size field, enter a size for the disk image.
- Click the Format pop-up menu, then choose the format for the disk:
- If the disk image will be used with a Mac that has a solid state drive (SSD) and uses macOS 10.13 or later, choose APFS or APFS (Case-sensitive).
- If the disk image will be used with a Mac with macOS 10.12 or earlier, choose Mac OS Extended (Journaled) or Mac OS Extended (Case-sensitive, Journaled).
- If the disk image will be used with a Mac or Windows computer and is 32 GB or less, choose MS-DOS (FAT); if it’s over 32 GB, choose ExFAT.
- To encrypt the disk image, click the Encryption pop-up menu, then choose an encryption option.
- Click the Partitions pop-up menu, then choose a partition layout.
- Click the Image Format pop-up menu, then choose an option:
- Sparse bundle disk image: Same as a sparse disk image (below), but the directory data for the image is stored differently. Uses the .sparsebundle file extension.
- Sparse disk image: Creates an expandable file that shrinks and grows as needed. No additional space is used. Uses the .sparseimage file extension.
- Read/write disk image: Allows you to add files to the disk image after it’s created. Uses the .dmg file extension.
- DVD/CD master: Changes the size of the image to 177 MB (CD 8 cm). Uses the .cdr file extension.
- Click Save, then click Done.Disk Utility creates the disk image file where you saved it in the Finder and mounts its disk icon on your desktop and in the Finder sidebar.
- In the Finder, copy your files to the mounted disk image, then eject it.
- Restore the disk image to a disk.For more information about disk image types, see the manual (man) page for hdiutil.
Create a disk image from a disk or connected device
You can create a disk image that includes the data and free space on a physical disk or connected device, such as a USB device. For example, if a USB device or volume is 80 GB with 10 GB of data, the disk image will be 80 GB in size and include data and free space. You can then restore that disk image to another volume.
- In the Disk Utility app on your Mac, select a disk, volume, or connected device in the sidebar.
- Choose File > New Image, then choose “Image from [device name].”
- Enter a filename for the disk image, add tags if necessary, then choose where to save it.This is the name that appears in the Finder, where you save the disk image file before opening it.
- Click the Format pop-up menu, then choose an option:
- Read-only: The disk image can’t be written to, and is quicker to create and open.
- Compressed: Compresses data, so the disk image is smaller than the original data. The disk image is read-only.
- Read/write: Allows you to add files to the disk image after it’s created.
- DVD/CD master: Can be used with third-party apps. It includes a copy of all sectors of the disk image, whether they’re used or not. When you use a master disk image to create other DVDs or CDs, all data is copied exactly.
- To encrypt the disk image, click the Encryption pop-up menu, then choose an encryption option.
- Click Save, then click Done.Disk Utility creates the disk image file where you saved it in the Finder and mounts its disk icon on your desktop and in the Finder sidebar.
Important: Don’t create a disk image of a disk that you believe to be failing or that contains corrupted information. The disk image may not serve as a reliable backup.
Synchronize Hard Drive Mac Software Mac
For technical information about creating a restore disk image, see the Apple Software Restore (ASR) manual (man) page.
Create a disk image from a folder or connected device
You can create a disk image that contains the contents of a folder or connected device, such as a USB device. This method doesn’t copy a device’s free space to the disk image. For example, if a USB device or volume is 80 GB with 10 GB of data, the disk image will be 10 GB in size and include only data, not free space. You can then restore that disk image to another volume.
- In the Disk Utility app on your Mac, choose File > New Image, then choose Image from Folder.
- Select the folder or connected device in the dialog that appears, then click Open.
- Enter a filename for the disk image, add tags if necessary, then choose where to save it.This is the name that appears in the Finder, where you save the disk image file before opening it.
- To encrypt the disk image, click the Encryption pop-up menu, then choose an encryption option.
- Click the Image Format pop-up menu, then choose an option:
- Read-only: The disk image can’t be written to, and is quicker to create and open.
- Compressed: Compresses data, so the disk image is smaller than the original data. The disk image is read-only.
- Read/write: Allows you to add files to the disk image after it’s created.
- DVD/CD master: Can be used with third-party apps. It includes a copy of all sectors of the disk image, whether they’re used or not. When you use a master disk image to create other DVDs or CDs, all data is copied exactly.
- Hybrid image (HFS+/ISO/UDF): This disk image is a combination of disk image formats and can be used with different file system standards, such as HFS, ISO, and UDF.
- Click Save, then click Done.Disk Utility creates the disk image file where you saved it in the Finder and mounts its disk icon on your desktop and in the Finder sidebar.
For technical information about creating a restore disk image, see the Apple Software Restore (ASR) manual (man) page.
Create a secure disk image
If you have confidential documents that you don’t want others to see without your permission, you can put them in an encrypted disk image.
Note: If you want to protect the contents of the system disk, turn on FileVault using the FileVault pane of Security & Privacy Preferences.
- In the Disk Utility app on your Mac, choose File > New Image > Blank Image.
- Enter a filename for the disk image, add tags if necessary, then choose where to save it.This is the name that appears in the Finder, where you save the disk image file before opening it.
- In the Name field, enter the name for the disk image.This is the name that appears on your desktop and in the Finder sidebar, after you open the disk image.
- In the Size field, enter a size for the disk image.
- Click the Format pop-up menu, then choose a format:
- If you’re using the encrypted disk image with a Mac computer using macOS 10.13 or later, choose APFS or APFS (Case-sensitive).
- If you’re using the encrypted disk image with a Mac computer using macOS 10.12 or earlier, choose Mac OS Extended (Journaled) or Mac OS Extended (Case-sensitive, Journaled).
- Click the Encryption pop-up menu, then choose an encryption option.
- Enter and re-enter a password to unlock the disk image, then click Choose.WARNING: If you forget this password, you won’t be able to open the disk image and view any of the files.
- Use the default settings for the rest of the options:
- Click the Partitions pop-up menu, then choose Single partition - GUID Partition Map.
- Click the Image Format pop-up menu, then choose “read/write” disk image.
- Click Save, then click Done.Disk Utility creates the disk image file where you saved it in the Finder and mounts its disk icon on your desktop and in the Finder sidebar.
- In the Finder , copy the documents you want to protect to the disk image.
- If you want to erase the original documents so they can’t be recovered, drag them to the Trash, then choose Finder > Empty Trash.
When you’re finished using the documents on the secure disk image, be sure to eject the disk image. As long as it’s available on your desktop, anyone with access to your computer can use the documents on it.
To access the data in a disk image, double-click it. It appears on your desktop, and you can add, remove, and edit files on it just as you would with a disk.
See alsoAdd a checksum to a disk image using Disk Utility on MacVerify that a disk image’s data isn’t corrupted using Disk Utility on MacRestore a disk image to a disk using Disk Utility on MacConvert a disk image to another format using Disk Utility on Mac
Synchronize files, backup files, mirror files, replicate files: visual or automatic
Compatible with all Windows (10, 8.1, 8, 7, Vista, XP, 2019, 2016, 2012, 2008, 2003) incl. servers and 64-bit.
Unique interactive view gives you full control over your files
Fully automated unattended mode lets you schedule your job to run hourly, daily, weekly
Supports any type of storage media, over USB, LAN, WAN, Network, VPN
Preview and review all operations before running for complete peace of mind
Auto run on folder content change, real-time
Real two-way file synchronization: if a change occurs in either location, it is reflected on the other side
Copy open files: you do not need to close the program you are using
Smart file archiving, backup software tool: keep multiple versions of your files
Supports encryption and compression: safely store your data on-line and on movable media
Password protect: only authorized users can change program settings
Fast, solid software used daily by thousands of customers: because your data is your most important asset
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