This chapter focuses on the end-to-end process of migrating business systems and virtual machines (VMs) from existing IT environments to Sangfor HCI. The content covers the full migration lifecycle—including feasibility analysis, pre-migration preparation, migration design, implementation with detailed operational steps, post-migration verification, troubleshooting, and rollback. Its core goal is to ensure smooth migration progress, minimize business downtime, and guarantee the stable operation of services in the target HCI environment after migration.

Intended Audience

This guide is written for IT professionals and stakeholders involved in migration projects, including:

IT Architects & Pre-sales Engineers: To understand the migration methodology, tool capabilities, and design a feasible migration solution.

System Administrators & Operation Engineers: As the primary audience, to perform the technical tasks of installing migration tools, executing migration plans, and performing post-migration verification.

Project Managers: To understand the overall migration process, key phases, and timelines for effective project planning and coordination.

Technical Support & Professional Services: As a reference for assisting customers during migration implementation and troubleshooting.

Summary of Core Chapters

The guide structures the migration journey into four logical phases:

Migration Preparation
Focuses on the foundational work of information gathering and analysis. It details what data to collect from the source environment (hardware, software, resource loads, application dependencies) to assess the scope, plan resources, and identify potential risks before the migration begins.

Migration Design
Covers the planning and solutioning phase. It introduces Sangfor's migration tools (SCMT, aHM, ISO), compares their strengths and limitations, and guides the selection of the optimal method. This chapter also provides methodologies for assessing and planning the required CPU, memory, and storage resources on the target HCI platform.

Migration Implementation
Provides the practical, step-by-step instructions for executing the migration. It includes detailed guides for deploying tools and performing migrations using various methods, along with essential procedures for post-migration verification and rollback plans to ensure business continuity.

Troubleshooting

Serves as a critical quick-reference guide for resolving common issues encountered during migration. It systematically categorizes problems by tool (SCMT, aHM, ISO) and phase (agent installation, task creation, synchronization, post-migration), providing root cause analysis and actionable solutions to minimize downtime and keep the project on track.