Azure Classroom Series – 25/Nov/2020

Virtual Machine Sizes

• Virtual Machine size defines

  • number of vCPUs
  • size of RAM
  • number of data disks
  • temporary disk size

• Virtual Machine Types: Refer Here

  • General Purpose:
    • Balanced CPU-Memory Ratio
  • Compute Optimized:
    • High CPU to Memory Ratio
  • Memory Optimized
    • High Memory to CPU Ratio
  • Storage Optimized:
    • These tyepes provide high disk througput
  • GPU:
    • Targeted for heavy graphics rendering, video editing and machine learning model trainging & deep learning
  • High Performance Compute
    • Fast & Most Powerfull CPU Virtual machines

• VM Series: Each VM Series is designed for specific vm type with diffent hardware configuration. Each Series is represented by an alphabet and they have versions (Generations). Any VM Series with S in it supports SSD Harddisk

• For Free Tier, we can use

  • A Windows VM For 750 hours/month of vm size B1s
  • A linux VM For 750 hours/month of vm size B1s

• Virtual Machine Pricing: Generally for any VM

  • Price is based on vm size
  • Price is impacted by Operating System (Windows machine will have extra price due to OS license)
  • Disks are not included in VM Pricing (Only temp disk is part of vm)
  • VM Prices may differ slightly from one region to other region
  • Pricing model for vm
    • On-demand
    • Reserved Instances
    • Spot VMS

• Lets create a Windows Virtual Machine of Type Memory Optimized

• Lets create a Linux Virtual Machine which is General purpose and has 4 VCPU’s and atleast 8 GB of RAM

• Once the vm is created can i change type?

  • Yes, But the machine will be restarted (So, there will be downtime)