MultiCloud Classroom notes 31/Jul/2025

Azure VM Creation

• Factors impacting Virtual machine creation
  • VM Image
  • Vm Size
  • Zone/Region Selection
  • Subnet
  • Managed Disk
  • Local Disk
  • Cloud-init/User data
• In azure zone is selected by Virtual machine option and generally most vms get two types of disk
  • Managed disk:
    • This is created on a different physical server
    • This is persistent/non-ephemeral
  • local disk
    • This is created on a same physical server
    • This is temporary/ephemeral (data will be available as long as machine is running.)
• In AWS when we select instance type we are selecting
  • cpu
  • ram
  • instance family (hardware)
  • network speed
  • optional local storage
• In Azure when we select vm size
  • cpu
  • ram
  • instance family (hardware)
  • local disk (Size)
  • Maximum number of managed disks
    
• Azure free plan
  • VM: 750 hours each of B1s, B2pts v2 (Arm-based), and B2ats v2 (AMD-based) burstable VMs
  • Disk: 2 64 GB (P6) solid state drives SSD storage, plus 1 GB snapshot and 2 million I/O operations

Lets create a VM in Azure which install nginx.

• Azure Organization:
  • Management Group
  • Account
  • Subscription
  • Resource Group
  • Resource
    
• Refer Here for quick start from Azure
• Create a Resource Group
• Create a vm and ensure in the Advanced tab you select user data and enter the script to install nginx
  
  
• Lets login into linux instance and

Explore disks

• The local disks are generally mounted to /mnt
  

AWS also has an option for local storage – instance store

• Instance store is available only for certain instance types.