# Disk Raid and IOPS Calculator

Do you know how many Input/Output Operations Per Second (IOPS) your RAID configuration is going to produce? Are you trying to calculate how much usable storage you are going to net from different RAID configurations?

Source: https://expedient.com/knowledgebase/tools-and-calculators/disk-raid-and-iops-calculator/

# Disk Raid and IOPS Calculator

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Do you know how many Input/Output Operations Per Second (IOPS) your RAID configuration is going to produce? Are you trying to calculate how much usable storage you are going to net from different RAID configurations? Use this calcualtor to help properly size your environment.

## Options

Hard Drive TypeSSD15K SAS10K SAS7K SAS

Hard Drive Capacity

[ ? 

### Hard Drive Capacity:

Input your drive size in GB.

 ](#)

Number of Drives

Read Percent

Write Percent

\*Assumes NO Hot Spares  
 \*SSD IOPS Is An Estimate Due to SSD/NAND Performance Differences

[Email My Configuration & Results](#calc-optin-form)

| | CAPACITY | IOPS |
| --- | --- | --- |
| RAID 10 | | |
| RAID 6 | | |
| RAID 5 | | |

  
  

[Hide Details ∧](#mobile-wrap1)

| Features | RAID 1+0 | RAID 6 | RAID 5 |
| --- | --- | --- | --- |
| Diagram | [![](http://thecloudcalculator.com/sites/all/themes/thecloud/img/calculators/raid-10.png)](http://thecloudcalculator.com/sites/all/themes/thecloud/img/calculators/raid-10.png) | [![](http://thecloudcalculator.com/sites/all/themes/thecloud/img/calculators/raid-6.png)](http://thecloudcalculator.com/sites/all/themes/thecloud/img/calculators/raid-6.png) | [![](http://thecloudcalculator.com/sites/all/themes/thecloud/img/calculators/raid-5.png)](http://thecloudcalculator.com/sites/all/themes/thecloud/img/calculators/raid-5.png) |
| Minimum # of Drives | 4 | 4 | 3 |
| Data Protection | Up to one drive failure in each sub-array | Two drive failure | Single drive failure |
| Read Performance | High | High | High |
| Write Performance | Medium | Low | Low |
| Read Performance (Degraded) | High | Low | Low |
| Write Performance (Degraded) | High | Low | Low |
| Capacity Utilization | 50% | 50% - 88% | 67% - 94% |
| Typical Applications | Fast Databases, Application Servers | Data Archive, Backup to Disk, High Availability Solutions, Web Servers, Servers With Large Capacity Requirements | Data Warehousing, Web Serving, Archiving |

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