The MobiLink server holds download data that has not been received by the client for use in a restartable download. This option
limits the amount of data that the server holds for all the synchronizations combined.
If size is too small the server may release download data, making it impossible to restart a download. The server does not release
download data until one of the following occurs:
The user successfully completes the download.
The user comes back with a new synchronization request without resume enabled.
The cache is needed for incoming requests. The oldest unsuccessful download is cleared first.
Use k, m, or g to specify units of kilobytes, megabytes, or gigabytes, respectively. The default is 10m.