Dear DBA-Mates,
As we all are knowing that cloud is hot in market
in which AWS is one of the most important. So, I would like to share some
important knowledge in short and easy way which can be learn in short time and
will help in career.
So, let’s start and grow together!!!
Cloud Computing:
Suppose, we have to start any business then we have
to setup an infrastructure and then we need Human power to manage that
infrastructure.
Also, here infrastructure like servers where you
can develop your software and test your software which was very costly and
everyone was not able to effort it.
Earlier disadvantages:
1. More expenses for setup and resources
2. Less time to focus on business.
For example:
If you have to open a shop then you have to buy land then build room/house which
is very costly and everyone can't effort.
So, people take shop on rent and they run their
business.
Same way cloud also works here...
Here, Computation means calculation.
Cloud computing example like Electric
Supply -- You pay what you use.
We can use scale-up and scale-down means resources
can be increase or decrease as per requirements.
Cloud Computating:
It enables on-demand services like compute,
storage, networking etc... which needs to develop and deploy a software and can
be access through internet in the world anywhere.
Features:
Scalable, Pay as You use, Flexible, Cost Effective,
smooth services,
Secure and Disaster Recovery. (It depends how you
want manage with permissions and access.
It's up to you how much access/permissions you want
and how much you to give to providers).
Cloud Service Models <<click here
Some more
useful links:
What is PDB and CDB in oracle 12c
SQL Tuning Advisor steps and details
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