Storage IOPS Calculator
Estimate effective IOPS and throughput based on read/write mix and block size. Plan storage performance for databases, VMs, and high-throughput workloads.
How to Use the Storage IOPS Calculator
- Enter percentage of sequential read operations.
- Enter percentage of random operations.
- Enter block size in KB.
- Click Calculate to get effective IOPS and throughput.
使用场景
- •Sizing SSD storage for database workloads.
- •Comparing HDD vs SSD performance for specific workloads.
- •Planning storage for virtual machine environments.
- •Estimating storage performance for cloud migrations.
公式
Effective IOPS = Base IOPS × (seq% × 1.0 + rand% × 0.3 + other × 0.6). Throughput = IOPS × block size.
常见问题
What is IOPS?
IOPS (Input/Output Operations Per Second) measures storage read/write performance, critical for databases.
Why do random IOPS matter more?
Random I/O is much harder for storage systems, especially HDDs. SSDs handle random I/O much better.
What block size should I use?
Databases typically use 4–16 KB blocks. Video streaming uses 256 KB–1 MB sequential blocks.