Azure Availability Sets and Availability Zones
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- Опубликовано: 14 окт 2024
- A student asked today about the difference between Azure Availability Sets and Availability Zones.
Here's I try to explain the difference between them. If you have any more questions about this, leave them in the comments!
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I was going through my Udemy course on AZ-104 and then quickly jumped to RUclips to get a clear understanding of this topic, and to my surprise, it's the same trainer here on RUclips as well. Scott Duffy..Excellent job sir. :)
I guess in simpler words, Availability set provides redundancy within a datacenter, Availability zone provides redundancy within a region.
In case of a data center failure, VMs in availability goes down.
so no possible to have availability within regions ? i mean my VM is deployed in US , West Europe and Brazil for example ? cuz if no , in this case if the whole region is down for some reason ( global disaster in UK for example ) and i set only availability zone there , in this case i will lose my vm ?
finally someone who understands it, the other videos are useless
No, I know this is about 3 years now but since it's still online, I want to emphasize that his explanation of Fault Domaine & Update domain is inaccurate. Your VMs are placed in different racks for fault tolerance to avoid downtime due to an entire rack failing as a result of anything that might affect the whole rack. Update Domains are to protect machines against planned maintenance. Update domain protects against routined scheduled maintenance; meaning, the VMs will be on different servers but on the same rack. VMs in the same Update domain will be restarted together
Nice Explanation.Thanks Scott. Waiting for more interesting videos from you.
Thanks for Explanation Scott
Thanks for the explanation and demo. One question: Does choosing Availability Set & Availability Zone cost more
Nice explanation... Please correct me if I am wrong... No vm= no UD? If yes max we can set 20 right ... If we want to configure morthan that what is the way?
Thanks Scott, you explained it very well
Great video, thanks for the comment below, I may find you on Udemy for my AZ-104 course!
Thanks
Crystal Clear. thanks for the video.
When using an Availability Set, are all VMs deployed within the same AZ or are they split across multiple AZ ?
And within an AZ are they split accross multiple Datacenters or not ?
Thanks
availability set means same az but different rack (fault domain) or server (update domain)
and az 1 is one datacenter, az 2 is a different one, etc..
@@25566 Thanks for your reply. From my tests, even within a region with AZ when creating an Availability Set you don't see which AZ is used for placement of you VMs. So i imagine it's in a datacenter randomly chosen from one of the 3 Az in the Region.
Thanks for the video. How VMs are identical in a set? Imagine we have an SFTP server which we want to have it in a AV set, how should we configure them?
for servers that are in Avail sets, are they typically in same IP Subnet, and servers in Avail zones in different IP subnets?
Thanks..Good explanation
Excellent..
Thank you
Nice one