- Cloud storage solution by Microsoft Azure for storing unstructured data (images, videos, docs, backups).
- “Blob” = Binary Large Object.
- Scalable, secure, and accessible via internet.
🔸 Blob Types
- Block Blob – For large files like images/videos/documents. Most common.
- Append Blob – For logs and data that is appended over time.
- Page Blob – For virtual hard disks (used with Azure VMs).
🔸 Storage Structure
- Storage Account → top-level container.
- Container → like a folder inside the account.
- Blob → actual file/data object.
🔸 Access Tiers
- Hot – Frequently used data (high cost, low latency).
- Cool – Infrequently accessed (lower cost).
- Archive – Rarely accessed, long-term (very cheap, slow access).
🔸 Security
- SAS Token – Temporary secure access link.
- RBAC – Role-based permissions.
- Encryption – Data is encrypted at rest.
🔸 Common Use Cases
- Storing media for apps/websites.
- Data backups and disaster recovery.
- Log files and telemetry.
- Big data storage for analytics/ML.
🔸 Access Methods
- Azure Portal (UI)
- Azure CLI / PowerShell
- SDKs (Python, C#, etc.)
- Azure Storage Explorer
- REST API