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Microsoft Azure Outage: Questions Remain
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Charlie Babcock
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Charlie Babcock,
User Rank: Author
11/24/2014 | 6:54:14 PM
No question South Central Azure was down
One more point from the Cedexis data on this outage: US East in Northern Virginia is a heavily trafficked Azure site, but it never quite went entirely off the air. Between roughly 7-8 p.m. Eastern standard time, users trying to access Azure from many different points around the globe suffered a similar fall off in service which took it from at least 95% available to about 5% available. Services continued running but were obviously impaired. South Central Azure, in Dallas, however, did simply go off the air with services zero % accessible, for 80-90 min., during the same period. What was the difference? I could speculate, would rather Microsoft explain.
pete23
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0%
pete23,
User Rank: Apprentice
11/24/2014 | 4:21:01 PM
A couple of additional points about the Azure outage.
One of the more important lessions that can be learned about this (or any outage) is that from the enterprise perspective there is no reason to let these types of outages hinder your business. Its long been a truism in IT, 'dont buy one of anything'. What that means is that you dont have one firewall at the top of your stack, you dont have one IP provider from a datacenter, you dont have one CDN delivering your content - and what we are learning is that you dont have one homogeneus cloud vendor as your only cloud. Its not enough to be deployed in multiple regions with the same vendor. You need to spread your compute accross multiple vendors in multiple availablity zones. This is the new best practice that is taking hold. Enterprises that fail to take this lesson will be brought to task. Innovators that understand this lesson will profit. Cedexis is one of the key innovators in this space -  
jring281
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jring281,
User Rank: Apprentice
11/24/2014 | 12:46:39 PM
Azure unintended infinite loop
If MSFT is willing to share the Azure code we will tell them which statement(s) are the fault.
CherylY937
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50%
CherylY937,
User Rank: Apprentice
11/23/2014 | 12:15:12 PM
Small correction
The Dublin data centre define North Europe, not West Europe, and vice versa for Amsterdam.  This often confuses people because Dublin in a few hundred kilometers further west than Amsterdam.  There again, it is also a little further north.  It's difficult to make out from low-res graphic, but I think it was Dublin that suffered the major problems, not Amsterdam.
CherylY937
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50%
CherylY937,
User Rank: Apprentice
11/23/2014 | 12:15:12 PM
Small correction
The Dublin data centre define North Europe, not West Europe, and vice versa for Amsterdam.  This often confuses people because Dublin in a few hundred kilometers further west than Amsterdam.  There again, it is also a little further north.  It's difficult to make out from low-res graphic, but I think it was Dublin that suffered the major problems, not Amsterdam.
Charlie Babcock
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50%
Charlie Babcock,
User Rank: Author
11/21/2014 | 7:30:32 PM
Why France?
Without being well informed on Azure operations, it's hard to know what some of the Cedexis data means. But another interesting oddity is that of the countries worst affected, France stands out with a deeper and longer lasting trough than other counties. That shows up in two performance charts highlighting country by country results provided by Cedexis, along with a look at the Orange network segment there.
Stratustician
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Stratustician,
User Rank: Ninja
11/21/2014 | 3:39:42 PM
Re: Post a Status update sooner?
Instances like this just point out that you can't rely 100% on cloud providers, real life sadly gets in the way and these things happen.  That being said, I agree with Charlie in that yes, Microsoft should've been more timely on the announcement and updates. 
Charlie Babcock
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50%
Charlie Babcock,
User Rank: Author
11/21/2014 | 2:04:23 PM
Post a Status update sooner?
So far, Microsoft has tended to be fairly forthright on the fact there was a problem, and later in a post mortem, on the nature of the problem. The timing of the notice on the Azure Status page in this case tended to lag the actual existence of the problem by about 45 min., but in my experience, all service providers operate that way. My interpretation: they try to get on top of the problem or fix it first, supply notice of it when it's becoming obvious to users. Not sure we'll reform them on that point any time soon.


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