What it means
Object storage organizes data as objects accessed through APIs, block storage presents volumes to compute systems, and file storage provides shared hierarchical access. Managed archival and specialized data services add further tradeoffs.
Why it matters
Selecting the wrong model can create performance, cost, backup, access-control, and recovery problems. Security design must account for how identities and applications actually access the data.
Practical focus
- Match storage type to access pattern and recovery needs
- Use private access and explicit authorization
- Enable encryption, versioning, and lifecycle controls where appropriate
- Monitor public exposure and high-volume access
Common mistakes
- Using object storage like a traditional file server without redesign
- Granting account-wide storage access
- Assuming durability replaces backup
- Ignoring deletion and retention behavior
Certification relevance
This subject appears in or supports the following certification bodies of knowledge: