To create account in VO Storage, you need to have an account in federation of identities eduID.cz. In case you don't have any account in federation eduID.cz, you can use Hostel service, where you can register for free to get necessary account. You will need the verified account to access data services.
Summary of used protocols and services can be found here - VO Storage accounts are always created in Ostrava data center, so you have to use appropriate addresses:
ftp.du4.cesnet.cz nfs.du4.cesnet.cz ssh.du4cesnet.cz samba.du4.cesnet.cz