By default, Mac OSX preserves the case of filenames, but does not distinguish files on the basis of case. For example a file named MyFile
is considered the same as myfile
and cannot exist in the same folder as it. Unfortunately, many other common filesystems behave differently and regard these files as different. In order to avoid unexpected results when syncing with other filesystems DropSync ignores differences on the basis of case. This means that if you sync with a case sensitive filesystem as the source and a case insensitive one as the destination only one of the two source files will be synced (both cannot exist at the destination). Importantly, when syncing in the opposite direction the alternate file (on the basis of case) will be ignored and therefore not subject to deletion. An additional complication is that it is not possible to use the ignore case mode for all SSH Folder Pairs because most remote hosts do not support it.
If all this seems horribly complicated the best advice we can give is simply to avoid using case to distinguish files.
Deletion cannot be used for bidirectional syncs
When using the deletion option take care to inspect previews to avoid accidentally deleting items. If you do accidentally delete something, try looking in the Folder Pair's rescue folder.
Previews are not displayed for automatic syncs, or for some syncs initiated using the run menu or status menu.
The total transfer size displayed in a preview is an upper-limit estimate only. Actual syncs might transfer much less data if files at the destination only need updating rather than copying from scratch.