Setting the file sort order

By default, files are sorted clockwise by decreasing file size. From the View menu, you can set a different sort order.

File Size

The default. You can quickly find files that take away most of your disk space.

Allocated File Size

When opening an ordinary directory, this setting will produce a similar display as for the File Size sort order (since usually there is only a small difference between the file size and the allocated file size). When scanning a directory managed by a cloud service such as Google Drive, Dropbox or OneDrive, this setting will effectively hide all those files that are not currently on the selected drive but are downloaded on demand (since their allocated file size is 0 Bytes).

Child count

Directories are sorted by the number of subfiles, followed by all the regular files sorted in alphabetical order. Having a lot of (small) files may slow down some operations: for example, copying a directory containing many files is often slower than copying a directory with less files.

You can quickly find such slow directories which you may want to exclude from a periodic copy operation or backup

Granting access to protected files

By default, Disk Graph can only show files that are not protected by the operating system, which will result in the graph showing more free space than expected when scanning directories such as /Library or /System. Starting from macOS 10.14, you can grant access to these protected system files.

  1. Go to System Settings > Security > Privacy.
  2. Click on the lock at the bottom left of the window and enter your system password.
  3. Click on the plus button and select the application.
  4. Click on the lock again. You can now close the window.

Backup strategy

Starting from version 2.9, you can choose whether files that are overwritten or removed from the destination should be moved to the trash or a custom folder.

A custom backup folder must be on the same device as the destination. If the backup folder is inside the destination (or the source for two-way syncs), it will be automatically excluded.

When moved to the backup folder, the current timestamp is appended to each filename. The timestamp has the format yyyy-MM-dd[T]HH-mm-ss+ZZZZ, which is independent of the current system locale and takes into account the timezone as well. This timestamp will be used in order to determine the oldest backup files that are to be removed when the destination drive has no more space available.

Follow hard and symbolic links and Finder aliases

While following hard links is supported, symbolic links and Finder aliases are not. This is a standard behaviour for sandboxed apps from the Mac App Store and cannot be circumvented.

If you want to copy files pointed to by a symbolic link or a Finder alias, you can create separate sync items taking care of these files.

Confirmation dialog

The confirmation dialog, which is displayed by default for new sync items, shows all the changes that will be applied during a sync grouped by files to be removed (left tab), overwritten (center tab) and added (right tab).

By default, while the name of regular files is always displayed in black, names of directories can be a light grey color to show that they will not be created or deleted: in the Remove tab, grey directory names won’t be deleted (but contents with a black name will) and grey directory names in the Overwrite or Add tab will not be created because they already exist.

The modification date of directories whose contents have changed is also synchronised according to the overwrite policy. An optional dot „•“ in the Size column indicates that only the destination date of a directory is going to be synchronised (and no contents are added or removed).

If the option „Always synchronise tags“ in the Destination tab of the sync item settings is enabled, files whose tags will be copied will appear in grey and show a dot „•“ in the Size column to indicate that the actual file will not be transferred.