What is the mathematical relationship between IOPS, Block Size, and Throughput?

Throughput (MB/s) = (IOPS × Block Size in KB) ÷ 1024. For example, 10,000 IOPS at 16 KB block size produces 156.25 MB/s of bandwidth.

What is a RAID write penalty?

Because parity RAID arrays (RAID 5 and RAID 6) must perform read-modify-write cycles to update parity blocks, a single write requires 4 disk IOs on RAID 5 and 6 disk IOs on RAID 6.

Database IOPS & Storage Throughput Calculator

Convert between IOPS, block sizes, and MB/s throughput with RAID write penalty adjustments.

Target / Workload IOPS

I/O Block Size (KB)

Read / Write Ratio

Storage Architecture

Computed Storage Throughput & Disk Load Real-Time Sizing

Continuous Throughput

187.50 MB/s

Raw Backend Disk IOPS Needed

12,000 IOPS

AWS EBS gp3 Baseline Cost

$45.00 /mo

Average IO Latency Sizing

< 1.5 ms (NVMe SSD)

⚡ IOPS Bottleneck Warning: Cloud instances (e.g. AWS EC2 m6i.large) have EBS bandwidth limits separate from volume limits. Ensure your EC2 instance size supports the target throughput.

Database Storage Performance & IOPS Architecture

Database latency is primarily bounded by storage input/output operations per second (IOPS) and throughput bandwidth (MB/s). Miscalculating storage requirements results in database connection pool starvation and high latency spikes.

Cloud Storage Baseline Specifications

Cloud Volume Type	Baseline IOPS	Max Burst / Provisioned	Max Throughput
AWS EBS gp3	3,000 IOPS (Free)	Up to 16,000 IOPS	1,000 MB/s
AWS EBS io2 Block Express	100 IOPS / GiB	Up to 256,000 IOPS	4,000 MB/s
Google Cloud pd-balanced	6 IOPS / GB	Up to 80,000 IOPS	1,200 MB/s
Azure Premium SSD v2	3,000 IOPS (Free)	Up to 80,000 IOPS	1,200 MB/s