Cloud Architects and Infrastructure Engineers
Designing a high-performance database cluster that requires specific IOPS and throughput guarantees
Use cases
About
The Disk Storage mind map provides a technical framework for understanding cloud-based storage architecture, specifically focusing on persistent disk management and optimization. This 42-node Disk Storage template covers critical infrastructure metrics including throughput calculations, vCPU scaling, and network egress caps. It serves as a Disk Storage cheat sheet for cloud architects and DevOps engineers who need to balance cost-efficiency with high-performance requirements. The content is structured into four primary domains: IOPs, Performance, Networking, and Size. By detailing how 'SSD persistent disk' performance scales linearly and explaining the relationship where 'Throughput = IOPs * I/O size', this guide helps professionals avoid common bottlenecks in virtualized environments. It specifically addresses how network ingress utilization affects IOPS consistency and provides concrete rules for calculating budget based on disk volume and machine type limits.
Terms and ConditionsWhen to use this template
DevOps and Site Reliability Engineers
Troubleshooting performance bottlenecks in virtual machine instances where disk latency is suspected
IT Managers and Financial Operations (FinOps) teams
Estimating monthly cloud infrastructure costs for storage-heavy workloads
How to use this template
Step 1
Import the storage template
Open the .xmind file in Xmind to view the full hierarchy of disk performance and networking rules.
Step 2
Input your instance specs
Replace the generic performance nodes with your specific vCPU count and machine type to see how they impact egress caps.
Step 3
Calculate throughput requirements
Use the provided formulas in the IOPs branch to calculate your required disk size based on your application's I/O size.
Frequently asked questions
According to the 'IOPs' branch, you can determine the cost per IOPS of a persistent disk by dividing the price per GB per month by the number of IOPS per GB. This helps in comparing standard versus SSD persistent disks for budget planning.
The 'Performance' section notes that performance depends on the number of vCPUs assigned to a VM instance. Specifically, using sixteen or more vCPUs ensures performance is not limited by network egress caps on write throughput.
In the 'Networking' branch, the template explains that when disk traffic competes with IP traffic, 60% of the maximum write bandwidth is allocated to the persistent disk, leaving 40% for IP traffic.
Yes, the template suggests that you can resize persistent disks to increase both IOPS and throughput limits, or change the machine type of the instance to increase per-instance limits.
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