AZ-900 Certification Notes

Chapter 6.8 - Premium Performance Options

Premium Performance Options for Low-Latency Requirements

• Stored on SSDs
  • Separate considerations from managed disk types
• Key considerations:
  • Available storage types for each performance option
  • Redundancy options
    • Trade more performance for less redundancy
    • LRS/ZRS only for all types
  • All premium options have a higher cost

Storage Account Performance Options

• Standard
  • Standard general-purpose v2
    • The default -- supports all storage types
    • All redundancy options
• Premium
  • Premium block blobs
  • Premium page blobs
  • Premium file shares

Premium Block Blobs

• Supported Storage Type
  • Blob Storage
  • Ideal for low-latency blob storage workloads
    • AI applications, IoT analytics
• Redundancy
  • LRS/ZRS only

Premium Page Blobs

• Supported Storage Type
  • Page blobs
    • Unmanaged virtual disk (currently being retired)
    • Standalone API access
      • For third party storage solutions which are using Azure page blobs in the background
  • Redundancy
    • LRS only (single zone)

Premium File Shares

• Supported Storage Type
  • Azure Files
    • Ideal for high-performance enterprise (file server) applications
    • Supports both Server Message Block (SMB) and Network File System (NFS) file shares
      • Windows (SMB)/Linux (NFS) file shares
  • Redundancy
    • LRS/ZRS only

Premium Storage Summary

Types of Storage Account

• Premium block blobs
  • Support Storage Services: Blob Storage
    • Redundancy Options: LRS/ZRS
• Premium page blobs
  • Support Storage Services: Page blobs only (IaaS disks)
    • Redundancy Options: LRS
• Premium file shares
  • Support Storage Services: Azure Files
    • Redundancy Options: LRS/ZRS