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Let's try to think about each one in terms of what it would cost us to replicate in our own data centers instead of using Azure so on a diagram on the right part of my screen we'll start with high availability which already should be selected and high availability is the ability to maintain an acceptable continuous performance despite temporary load fluctuations or failures in services hardware or data centers. And the key point here in Microsoft Azure is to maintain acceptable continuous performance which is in bold and that means that even if traffic varies to our site if it increases greatly or decreases greatly or in fact if certain Azure services fail if some hardware fails or in fact if an entire data center fails our applications and systems can still maintain acceptable continuous performance. Microsoft azure concepts course can be accessed here online: https://www.udemy.com/course/linux-academy-microsoft-azure-concepts/
And so let's take a look at how Azure does that and it's based on redundancies at every level. So we'll start at the finest level which is a single individual data center within Azure and we'll look at the redundancies employed there to make sure that everything stays up as much as possible.
First off with power the power systems in these Azure Data centers are fully redundant. It's not uncommon for a data center to be able to generate its own power and as well there might be different providers of power coming into the data center. IQ Stream Technologies offering top quality Microsoft azure training in Bangalore with 100% placements. All the azure training sessions will be delivered by highly experienced professionals and industry experts.
So if one has an interruption the other stays up. And there's also redundancies in the power generation the power battery backups and systems like that. There's also redundancies with the cooling systems they might use a combination of different cooling approaches like water cooling and air cooling and they might have redundancies as well with the providers that they use to power and to fuel those cooling systems and additionally with the networking equipment like switches and routers and other networking hardware all of those are fully redundant.
And as your data centers as well. And in fact there might be multiple Internet service providers coming into the data centers as well. So again if one is actually down or has an interruption the other one can stay up and service the needs of the data center so within an Azure Data Center there's redundancies at nearly every level but in case something happens to an entire data center we can step up a level from the data center and go to
Availability Zones and reap even more redundancies there.
So an availability zone is essentially a grouping of one or more data centers put together.
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