Azure offers multiple virtual machine series with varying performance and cost characteristics. Upgrading from older GS series machines to newer Esv5 or Mv3 series can significantly reduce cloud infrastructure expenses while improving computational performance.
Why This Policy Matters
Older Azure VM series like the GS machines often have higher costs and less efficient processors compared to newer generation instances. By strategically migrating to more modern VM series, organizations can:
Reduce monthly infrastructure costs
Improve computational performance
Leverage newer processor technologies
Optimize cloud spending efficiency
Cost Reduction Potential
Comparative analysis reveals substantial cost savings opportunities:
Example Scenario:
GS4 Instance
16 vCPUs
224 GB RAM
448 GB temporary storage
Monthly Cost: $3,212 (East US region)
E32s v5 Instance
32 vCPUs
256 GB RAM
Remote storage
Monthly Cost: $1,472
Potential Savings: 54%
Performance Benefits
Upgraded VM series offer:
More advanced processor architectures
Improved core-to-cost ratios
Enhanced memory configurations
Better overall computational efficiency
Implementation Guide
Infrastructure-as-Code Transformation Example (Terraform)
Before:
resource "azurerm_virtual_machine" "example" {
vm_size = "Standard_GS4"
# Other configuration parameters
}
After:
resource "azurerm_virtual_machine" "example" {
vm_size = "Standard_E32s_v5"
# Other configuration parameters
}
Manual Migration Steps
Assess current VM workload and resource requirements
Select appropriate Esv5 or Mv3 series machine
Create a new VM with updated configuration
Migrate data and applications
Validate performance and functionality
Decommission old VM
Best Practices
Gradual Migration: Implement changes in phases
Performance Testing: Validate workload compatibility
Cost Modeling: Use tools like Infracost to estimate savings
Backup: Ensure complete system backup before migration
Recommended Tools
Infracost: Scan infrastructure code and estimate cost savings
Azure Cost Management
Azure Advisor
Example Scenarios
Scenario 1: Web Application Hosting
A mid-sized company running web services on GS4 VMs migrated to E32s v5, reducing monthly costs by over 50% while improving request processing capabilities.
Scenario 2: Data Processing Workloads
A data analytics team transitioned from GS machines to Mv3 series, achieving better memory performance and lower overall infrastructure expenses.
Considerations and Caveats
Application Compatibility: Verify software works correctly on new VM series
Migration Complexity: Some workloads might require additional configuration
Licensing Implications: Check software licensing requirements
Network Configuration: Potential network setting adjustments
Frequently Asked Questions (FAQs)
How quickly can I realize cost savings?
Savings are immediate upon migrating to the new VM series, typically within the first billing cycle.
Are there risks in migrating VM series?
Minimal risks if proper assessment and testing are conducted. Always perform thorough validation.
Can Infracost help me identify migration opportunities?
Yes, Infracost’s free trial can scan your infrastructure code and highlight potential cost optimization strategies.
What if my specific workload has unique requirements?
Consult Azure documentation and consider a proof-of-concept migration to validate performance.
How often should I review VM series for potential upgrades?
Recommended quarterly review to stay current with Azure’s evolving infrastructure offerings
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