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Data Migration Methods

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Data Migration Methods

Data migration methods vary based on the system layer and the level at which the data transfer occurs. The two primary approaches include Hypervisor-Based and Storage-Based migration techniques.

🖥️ Hypervisor-Based Migration

This method leverages the capabilities of the virtualization layer to facilitate data movement with minimal disruption.

VM Migration

Tip

Ideal for balancing workloads across compute systems with no service interruption.

  • Enables migration of entire virtual machines between compute systems
  • Typically executed live (no downtime)

VM Storage Migration

Note

Enhances storage performance by enabling dynamic resource allocation.

  • Moves VM storage across different storage systems
  • Performed online, improving efficiency and resource optimization

🗄️ Storage-Based Migration

Storage-level techniques focus on direct data transfers managed by the underlying storage infrastructure.

SAN-Based Migration

Warning

Ensure compatibility between heterogeneous systems to prevent data integrity issues.

  • Block-level migration between diverse storage platforms
  • Control storage system orchestrates push or pull transfers

NAS-Based Migration (Appliance)

Example

Common in environments using file-level storage abstraction, especially in enterprise NAS setups.

  • File-level data movement
  • Virtualization appliance abstracts physical storage location, allowing non-disruptive migrations

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