Raidcapacity Calculator
Our storage & raid tool computes raidcapacity accurately. Enter your inputs for detailed analysis and optimization tips.
Formula
Usable = (N - P) x Disk Size
Where N is the number of disks, P is the number of parity/mirror disks (varies by RAID level), and Disk Size is the capacity of each individual drive. RAID 0: P=0, RAID 1: P=N-1, RAID 5: P=1, RAID 6: P=2, RAID 10: P=N/2.
Worked Examples
Example 1: NAS with RAID 5
Problem: You have 4 x 4TB drives configured in RAID 5. Calculate usable capacity and storage efficiency.
Solution: Total raw capacity: 4 x 4,000 GB = 16,000 GB\nRAID 5 usable: (n-1) x disk size = 3 x 4,000 = 12,000 GB\nParity overhead: 1 x 4,000 = 4,000 GB\nStorage efficiency: 12,000 / 16,000 = 75%\nFault tolerance: 1 disk failure
Result: Usable: 12,000 GB (12 TB) | Efficiency: 75% | Fault tolerance: 1 disk
Example 2: Database Server with RAID 10
Problem: A database server uses 6 x 2TB SSDs in RAID 10. Calculate usable capacity and performance characteristics.
Solution: Total raw capacity: 6 x 2,000 GB = 12,000 GB\nRAID 10 usable: (n/2) x disk size = 3 x 2,000 = 6,000 GB\nMirror overhead: 6,000 GB\nStorage efficiency: 6,000 / 12,000 = 50%\nRead performance: 6x single disk\nWrite performance: 3x single disk
Result: Usable: 6,000 GB (6 TB) | Efficiency: 50% | Read: 6x, Write: 3x single disk speed
Frequently Asked Questions
Can I use Raidcapacity Calculator on a mobile device?
Yes. All calculators on NovaCalculator are fully responsive and work on smartphones, tablets, and desktops. The layout adapts automatically to your screen size.
Is my data stored or sent to a server?
No. All calculations run entirely in your browser using JavaScript. No data you enter is ever transmitted to any server or stored anywhere. Your inputs remain completely private.
How accurate are the results from Raidcapacity Calculator?
All calculations use established mathematical formulas and are performed with high-precision arithmetic. Results are accurate to the precision shown. For critical decisions in finance, medicine, or engineering, always verify results with a qualified professional.
Can I share or bookmark my calculation?
You can bookmark the calculator page in your browser. Many calculators also display a shareable result summary you can copy. The page URL stays the same so returning to it will bring you back to the same tool.
What formula does Raidcapacity Calculator use?
The formula used is described in the Formula section on this page. It is based on widely accepted standards in the relevant field. If you need a specific reference or citation, the References section provides links to authoritative sources.
How do I interpret the result?
Results are displayed with a label and unit to help you understand the output. Many calculators include a short explanation or classification below the result (for example, a BMI category or risk level). Refer to the worked examples section on this page for real-world context.