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Azure Storage Services

 Azure Storage Services:

• Describe products available for Storage such as Blob Storage, File Storage, Queue Storage, Table Storage, Disk Storage, and Storage Tiers

Data Types

• Structured - Data that can be represented using tables with very strict schema. Each row must follow defined schema. Some tables have defined relationships between them. Typically used in relational databases.

• Semi-structured - Data that can be represented using tables but without strict defined schema. Rows must only have unique key identifier.

• Unstructured - Any files in any format. Like binary files, application files, images, movies, etc.

Storage Account

• Group of services which include

  • blob storage,
  • queue storage,
  • table storage, and
  • file storage

• Used to store

  • files,
  • messages, and
  • semi-structured data

• Highly scalable (up to petabytes of data)

• Highly durable (99.999999999% - 11 nines, up to 16 nines)

• Cheapest per GB storage

Blob Storage

• BLOB – binary large object – file

• Designed for storage of files of any kind

• Three storage tiers

  • Hot – frequently accessed data
  • Cool – infrequently accessed data (lower availability, high durability)
  • Archive – rarely (if-ever) accessed data

Queue Storage

• Storage for small pieces of data (messages)

• Designed for scalable asynchronous processing

Table Storage

• Storage for semi-structured data (NoSQL)

  • No need for foreign joins, foreign keys, relationships or strict schema
  • Designed for fast access

• Many programming interfaces and SDKs

File Storage

• Storage for files accessed via shared drive protocols

• Designed to extend on-premise file shares or implement lift-and-shift scenarios

Disk Storage

• Disk emulation in the cloud

• Persistent storage for Virtual Machines

• Different

  • sizes,
  • types (SSD, HDD)
  • performance tiers

• Disk can be unmanaged or managed



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