SSD RAID Performance Calculator

This calculator has been designed to perform performance calculation for RAIDs with solid state drives (SSD) - devices with substantial difference in read and write performance.

Provide the following parameters:

• RAID type,
• disk read and write performance (IO/s or MB/s),
• disk capacity,
• number of disks drives per RAID group,
• number of RAID groups (if your storage system consists of more than one RAID group of the same configuration),
• percentage of read operations
• single disk cost (optional) - to calculate the total storage cost and the cost per TB of usable capacity.

To display the results, click Calculate.

Supported RAID levels are RAID0, RAID1, RAID5, RAID6, and RAID10 (1+0).

This calculator does not perform automatic conversion between IO/s and MB/s. If you've switched the units, do not forget to update the values in the drive performance fields.

IOPS (IO/s) and throughput (MB/s) are two common performance measurements for storage devices, such as disk drives and RAID sets. Most often IOPS measurement is used for random small block (4-8 KB) read and/or write operations typical for OLTP applications. MB/s is used for large block (>= 64 KB) random or sequential operations, such as file transfer and streaming.

Examples of IOPS and throughput values for some SSD drives are provided in the table below.