Block Storage — Complete Guide

Block Storage — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part of Cloud Computing Tutorial on Toolliyo Academy.

8 min read Updated 8/20/2026

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Cloud Computing Tutorial · Lesson 42 of 100

Block Storage

Foundations ✓ → Platform → Ops → Projects

Platform · 2 — Containers & data · ~6 min · Cloud — Storage & Databases

What is this?

Block storage attaches disk volumes to VMs/Pods — databases and filesystems that need low latency.

Why should you care?

CloudVerse Postgres data directories use managed disks / PersistentVolumes.

See it live — copy this example

Use AWS/Azure/GCP free tier or local Docker/Kind. Sketches and YAML are meant to be typed and adapted.

# K8s PVC sketch
# kind: PersistentVolumeClaim
# resources.requests.storage: 100Gi
# storageClassName: managed-csi

What happened?

Choose SSD vs HDD.
Snapshots for backup.
AZ attachment limits matter.

Practice next

Attach a managed disk to a VM.
Create PVC in lab.
Snapshot once.
Resize disk.
Note AZ stickiness.

Remember

Attached volumes. SSD for DB. Snapshots.

CloudVerse DB volume

Postgres on 100Gi SSD PVC.

Outcome: Data survives pod restarts.

Interview prep for this lesson

Practice these questions aloud after reading—each links to a full structured answer.

Junior Detailed

Explain Services in the context of Cloud Computing.

Short answer: Interviewers want a crisp definition, a practical example from your projects, and awareness of trade-offs—not textbook dumps. Explain a bit more How to structure your answer (60–90 seconds) Define Services…

Mid Detailed

What are common mistakes teams make with Deployment when using Cloud Computing?

Senior Detailed

How would you debug a production issue related to Security in a Cloud Computing application?

Junior Detailed

Describe a real-world scenario where Monitoring mattered in a Cloud Computing project.

All course Q&A Practice exams

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