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You're reading from  Microsoft Azure Fundamentals Certification and Beyond

Product typeBook
Published inJan 2022
PublisherPackt
ISBN-139781801073301
Edition1st Edition
Tools
AzureAzure Functions
Concepts
Cloud Computing
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Author (1)
Steve Miles
Steve Miles
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Steve Miles

Steve Miles is a Microsoft security and Azure/hybrid MVP and MCT with over 20 years of experience in security, networking, storage, end user computing, and cloud solutions. His current focus is on securing, protecting, and managing identities, Windows clients, and Windows server workloads in hybrid and multi-cloud platform environments. His first Microsoft certification was on Windows NT and he is an MCP, MCITP, MCSA, and MCSE for Windows and many other Microsoft products. He also holds multiple Microsoft Fundamentals, Associate, Expert, and Specialty certifications in Azure security, identity, network, M365, and D365. He also holds multiple security, networking vendor, and other public cloud provider certifications.
Read more about Steve Miles

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Thought exercise

Returning to our digital company, MilesBetter Pizza, they have encountered some service availability issues over the last few months. They have noticed that their services have different SLAs, and they need to ensure that, in total, they always meet a target total of 99.9%. However, they are unsure how to calculate and achieve this.

First, the team at MilesBetter needs to understand the concept of a composite SLA; as we learned earlier in this chapter, this means that when you combine services, the overall SLA is lower than the individual highest SLA on one of the services. This is because each service that you add increases the probability of failure and increases complexity. The following example illustrates how a composite SLA is calculated across the services:

  • Service 1 = 99.9%
  • Service 2 = 99.95%
  • Service 3 = 99.99%
  • Service 4 = 99.99%

The calculation looks as follows, which shows that the target SLA will not be met:

0.999 x 0.9995...

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Microsoft Azure Fundamentals Certification and Beyond
Published in: Jan 2022Publisher: PacktISBN-13: 9781801073301
© 2022 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Steve Miles

Steve Miles is a Microsoft security and Azure/hybrid MVP and MCT with over 20 years of experience in security, networking, storage, end user computing, and cloud solutions. His current focus is on securing, protecting, and managing identities, Windows clients, and Windows server workloads in hybrid and multi-cloud platform environments. His first Microsoft certification was on Windows NT and he is an MCP, MCITP, MCSA, and MCSE for Windows and many other Microsoft products. He also holds multiple Microsoft Fundamentals, Associate, Expert, and Specialty certifications in Azure security, identity, network, M365, and D365. He also holds multiple security, networking vendor, and other public cloud provider certifications.
Read more about Steve Miles

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