CODEWITHSUNDEEP
azureconfigurationcloud
stefjnl
stefjnl

Reputation: 732

Azure maintenance: possible downtime with 8 instances?

Microsoft just sent out an email notifying our company that there will be scheduled maintenance for our Windows Azure environment.

We will be performing maintenance on our networking hardware. We are scheduling the update to occur during nonbusiness hours as much as possible, in each maintenance region. Single and multi-instance Virtual Machines and Cloud Services deployments will reboot once during this maintenance operation. Each instance reboot should last 30 to 45 minutes. We suggest using availability sets in the architecture to protect against downtime caused by planned maintenance. This maintenance will proceed by updating instances in only one Fault Domain (FD) at a time for the Cloud Services and Virtual Machines in an Availability Set.

Now our website consists of a Cloud Service with 8 (small) instances of a web role. With these 8 instances, is there still a possibilty of downtime for the website? Do we need to use 'Availability Sets' or are we safe? Thanks for any info..

Upvotes: 1

Views: 571

Answers (1)

Panos
Panos

Reputation: 1973

Depends on which service you're referring to. From my understanding, because you mentioned "Web Role", you're talking about Cloud Services (PaaS).

In General:

  1. If you have Cloud Services (PaaS), which is what you have based on my understanding, then you won't have any downtime, no.

  2. If you have VMs (Virtual Machines) that don't belong to the same Availability Set, then there is a chance of downtime. To fix that, just make sure they are on the same Availability Set. If you don't have VMs, ignore this.

Hope it helps.

Upvotes: 1

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