IaaS versus PaaS will be a choice you will often be faced with. In general, you will be better off starting with PaaS (quicker provisioning and near-zero maintenance). For some use cases, PaaS may not cut it  – and you may have to resort to IaaS. IaaS will put the onus of upgrades, updates, patches and all other instance level maintenance tasks on you – the owner of the infrastructure asset. 

It is not just the initial provisioning that is smoother in PaaS. Future scalability and expansion are all part of most PaaS solutions.

Example 1 – Azure Websites (PaaS) versus Azure VMs with IIS (IaaS)

It is trivial to add multiple instances to create a ‘server farm’. By default, you get a load balancing group – which can contain anywhere from 2 to 16 instances.

Example 2 –  SQL Azure versus SQL Server on an Azure VM

Example 3 – Azure Data Factory versus your regular ETL processes

Anuj holds professional certifications in Google Cloud, AWS as well as certifications in Docker and App Performance Tools such as New Relic. He specializes in Cloud Security, Data Encryption and Container Technologies.

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Anuj Varma – who has written posts on Anuj Varma, Hands-On Technology Architect, Clean Air Activist.

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