To assist you in selecting the right Ciphertex SecureNAS to meet your needs, use this RAID-Z calculator to determine how much usable disk space you get with select NAS appliances in different RAID-Z configurations. Based on the total RAW capacity (in TB) and RAID-Z configuration you select, the calculator will show recommended products and their respective 1) model number, 2) total raw capacity, 3) storage allocated for data protection, 4) and usable capacity.
Note: 1TB = 1024GB