Azure Classroomnotes 05/Apr/2023

Block Storage or Disk Storage in Azure

• Lets create a windows VM Refer Here
  
• In the vm we have seen two logical drives
  
  
  
• In Azure We deal with
  • OS Disk
    • This is disk mounted from different server
    • This disk has operating system in it
    • This disk has life time different from vm.
  • Data Disk
    • This is disk mounted from different server
    • This disk has life time different from vm.
  • Temp Disk:
    • Allocated from same server where vm is created (same host)
    • Shutdown of the vm will clean the physical space, so whenever vm is shutdown data will be lost
      
• If we shutdown the vm , Azure will not charge for vm hourly bills but disk charges continue.
• Number of Data disks and Size of Temp disk is mandated by VM Size
  
• Lets understand disk costs by exploring pricing calclulator Refer Here
• As of now we have seen 3 disk types
  • Standard HDD
  • Standard SSD
  • Premium SSD
• There is one more which is ultra ssd
• Free tier:
  • 2 64 GB Premium SSD’s are free for 12 months
• We need to take back up for disks,
  • Backup of disk is called as snapshot and snapshots can be taken manually or can be automated.