Web Sizing Tool

Calculates capacity, throughput, and node needs for planning web-related data sizing; targets IT admins, architects, and operations teams.

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About This Tool

The tool estimates sizing for web-oriented data protection workloads by combining data volume, efficiency gains, and growth assumptions.
It models capacity as initial_data_gb multiplied by dedup_ratio and compression_ratio, then applies a growth factor based on daily_change_gb and the retention period.
The workflow yields estimates for total storage, peak throughput, and the number of nodes required to sustain ingest with acceptable QoS.
Intended users include IT admins, data engineers, and capacity planners who perform scoping, migrations, or capacity expansion; it provides a reusable, transparent basis for procurement decisions.

How to Use

  1. Provide inputs: initial_data_gb, daily_change_gb, backup_retention_days, dedup_ratio, compression_ratio.
  2. Optionally set ingestion_rate_gbps and concurrency for refinement.
  3. Run calculation to generate outputs: estimated_storage_gb, peak_throughput_gbps, required_nodes, deployment_plan_summary.
  4. Review results and adjust inputs to model different scenarios.
  5. Export or save the deployment plan for procurement and capacity planning.
How to use cohesity web sizing tool

Frequently Asked Questions

Find Quick Answers

What inputs are required?
Required inputs include initial_data_gb, daily_change_gb, backup_retention_days, dedup_ratio, and compression_ratio. Optional inputs like ingestion_rate_gbps and concurrency improve accuracy. Values must be non-negative and in the specified units.
What outputs does the tool provide?
The tool outputs estimated_storage_gb, peak_throughput_gbps, required_nodes, and a deployment_plan_summary that maps to a practical sizing and procurement approach.
How reliable are growth projections?
Projections rely on user-provided daily_change and retention assumptions. They are indicative and should be recalculated if data growth or retention changes, to maintain aligned capacity and performance targets.

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