The short answer is no we don’t allow it.
As stated in our Legal Agreements under “File Storage / Online Backups”
We do not permit the use of our hosting plans platforms for the storage of backup or archival data, mirror sites, personal multimedia content such as movies, music, photos or other media. Your account and any sub-accounts may be used for genuine web hosting purposes only. Any such content is not permitted and will be removed and any offending accounts suspended.
Services such as OwnCloud are not permitted on our hosting plans and accounts found to be utilising web space for such services will have their data removed and services suspended.
We don’t limit your disk space providing the majority of your space is used for web hosting. We do not permit the use of our hosting plans as an e-mail archival system and you may be asked to remove e-mail, archive e-mail to your computer