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


*Usable capacity will vary depending on RAID configuration and NAS model

4 TB
8 TB
16 TB
24 TB
32 TB
40 TB
48 TB
56 TB
60 TB
62 TB
64 TB
72 TB
78 TB
80 TB
94 TB
96 TB
110 TB
112 TB
120 TB
126 TB
128 TB
142 TB
144 TB
150 TB
158 TB
174 TB
240 TB
270 TB


Traditional RAID (“Redundant Array of Inexpensive Disks” or “Redundant Array of Independent Disks”) is a data storage virtualization technology that combines multiple physical disk drive components into one or more logical units for the purposes of data redundancy, performance, or both. Ciphertex SecureNAS Series uses ZFS-based RAIDZ, a filesystem and volume manager that offers greater reliability, performance, and data integrity.

If you are interested in acquiring a portable SecureNAS with RAID-Z, you can click here to learn more. If you are searching for a non-network portable desktop RAID system, please click here.

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