Azure Storage

Azure Storage is Microsoft's cloud storage solution for modern data storage scenarios. 
 Why Azure Storage:
Durable and Highly Available:
·       Data is safe during hardware failure.
·       Replicate data across data centres.
·       In local catastrophe or natural disaster data replicated to other data centres remains highly available.
Secure:
·       Data encrypted by Azure service Storage Service encryption (SSE) for data at rest.
·       Completed control over who access your data.
Scalable:
·       Designed to massive scale.
Managed:
·       Azure handles maintenance, updates and critical issues.
Accessible:
·       Accessible from anywhere in the world.
·       You can access using http, https, .net, java, php, python and etc.
 You can store all type of data
-       Structure:
The term structured data refers to data that resides in a fixed field within a file or record. Structured data is typically stored in a relational database (RDBMS). ... Typical examples of structured data are names, addresses, credit card numbers, geolocation, and so on.
-  Unstructured:
         In the modern world of big data, unstructured data is the most abundant. It’s so prolific because unstructured data could be anything: media, imaging, audio, sensor data, text data, and much more.
Types of Storage Account:
1.     Standard
2.     Premium

1.     Standard:
-       Backed by HDD (magnetic drives)
-       Low cost per GB
-       Used for applications that requires bulk storage.
-       Infrequently accessed data.

2.     Premium:
-       Backed by SSD (Solid State Drive)
-       Low latency performance.
-       Used by i/o intensive applications.
 
Note: You can’t convert standard storage account to premium and vice versa.
 
Azure Storage Services
Azure Storage includes these data services, each of which is accessed through a storage account.
Azure Container (Blobs):
-       Massively scalable object store for text and binary data.
Ideal for:
-       Serving image or document directly to a browser.
-       Storing files for distributed access
-       Streaming video or audio.
-       Storing data for backup and restore, disaster recovery and archiving purpose.
-       Storing data for analysis by on-premises or azure services.
Can be accessed from anywhere in the world using http, https, java, .net, php, python and more.
Azure Files:
Managed files share for cloud or on-premises deployments.
Ideal for:
-       Enable you to setup highly available network file share that can be accessed using server messages block (SMB).
-       Multiple vm’s can share files with both read and write access.
-       You can access the files from anywhere is the world using url includes SAS.
-       You can generate tokens for specific amount of time to have access.
-       Mostly used in on-premises applications, configuration files, or diagnostic log and metrics.
-       Storage account credentials used to provide authentication for access to the file share.
-       Anybody with the share mounted will have read/write access to share.
 
Queue Storage:
A messaging store for reliable messaging between application components.
-       Used to store and retrieve messages
-       Messages can be up to 64kb in size.
-       Can contain millions of messages.
Azure Table storage:
A NoSQL store for schemaless storage of structured data.
-       Part of a azure cosmos DB.
-       Ideal for storing structured and non-relational data.

What is NoSQL:

Please go through below url to understand what is NoSQL

https://www.mongodb.com/nosql-explained

 Storage account kind:

Storage Account	Recommended Usage
Standard General purpose V2	blob, files, queue, table and data lake storage.
Premium block storage	with high transaction rates or scenario that uses  smaller object or low storage latency
Premium file share	Enterprise or high performance file share applications
Premium Page Blobs	Premium high-performance page blob scenario

Note: All storage accounts are encrypted using SSE (Storage Service Encryption) for data at rest. 

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