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  1. Home
  2. Glossary
  3. Effective Capacity
Glossary

Effective Capacity

Usable storage capacity after a compression or deduplication assumption has been applied.

Related Terms

Usable Capacity

The storage capacity available for workloads after protection and system overhead, before optional data reduction assumptions.

FlashCore Module

IBM FlashSystem flash media technology designed for density, data reduction, telemetry, and cyber resilience features.

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FlashSystem AS/400 Center

IBM FlashSystem Decision Center

A structured IBM FlashSystem decision center built around buyer questions: which model fits, what usable capacity means, how FCM differs from standard NVMe, what replaces Storwize or older FlashSystem gear, and how storage resilience fits an IBM Power estate.

Models

  • FlashSystem Models
  • FlashSystem Specs
  • Sizing & Usable Capacity

Decisions

  • IBM i & Power Fit
  • FCM vs NVMe
  • Quote Checklist

Migration

  • Storwize Migration
  • Cyber Resilience
  • HA / DR Architecture

Directory

  • Model Directory
  • Decision Areas
  • Sourcing Vendors

Portfolio

  • AS400System.com
  • Power 11 AS/400 Systems
  • Power 9 AS/400 Systems
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