Compute
Elastic Cloud Server
Huawei Cloud Flexus
Bare Metal Server
Auto Scaling
Image Management Service
Dedicated Host
FunctionGraph
Cloud Phone Host
Huawei Cloud EulerOS
Networking
Virtual Private Cloud
Elastic IP
Elastic Load Balance
NAT Gateway
Direct Connect
Virtual Private Network
VPC Endpoint
Cloud Connect
Enterprise Router
Enterprise Switch
Global Accelerator
Management & Governance
Cloud Eye
Identity and Access Management
Cloud Trace Service
Resource Formation Service
Tag Management Service
Log Tank Service
Config
OneAccess
Resource Access Manager
Simple Message Notification
Application Performance Management
Application Operations Management
Organizations
Optimization Advisor
IAM Identity Center
Cloud Operations Center
Resource Governance Center
Migration
Server Migration Service
Object Storage Migration Service
Cloud Data Migration
Migration Center
Cloud Ecosystem
KooGallery
Partner Center
User Support
My Account
Billing Center
Cost Center
Resource Center
Enterprise Management
Service Tickets
HUAWEI CLOUD (International) FAQs
ICP Filing
Support Plans
My Credentials
Customer Operation Capabilities
Partner Support Plans
Professional Services
Analytics
MapReduce Service
Data Lake Insight
CloudTable Service
Cloud Search Service
Data Lake Visualization
Data Ingestion Service
GaussDB(DWS)
DataArts Studio
Data Lake Factory
DataArts Lake Formation
IoT
IoT Device Access
Others
Product Pricing Details
System Permissions
Console Quick Start
Common FAQs
Instructions for Associating with a HUAWEI CLOUD Partner
Message Center
Security & Compliance
Security Technologies and Applications
Web Application Firewall
Host Security Service
Cloud Firewall
SecMaster
Anti-DDoS Service
Data Encryption Workshop
Database Security Service
Cloud Bastion Host
Data Security Center
Cloud Certificate Manager
Edge Security
Managed Threat Detection
Blockchain
Blockchain Service
Web3 Node Engine Service
Media Services
Media Processing Center
Video On Demand
Live
SparkRTC
MetaStudio
Storage
Object Storage Service
Elastic Volume Service
Cloud Backup and Recovery
Storage Disaster Recovery Service
Scalable File Service Turbo
Scalable File Service
Volume Backup Service
Cloud Server Backup Service
Data Express Service
Dedicated Distributed Storage Service
Containers
Cloud Container Engine
SoftWare Repository for Container
Application Service Mesh
Ubiquitous Cloud Native Service
Cloud Container Instance
Databases
Relational Database Service
Document Database Service
Data Admin Service
Data Replication Service
GeminiDB
GaussDB
Distributed Database Middleware
Database and Application Migration UGO
TaurusDB
Middleware
Distributed Cache Service
API Gateway
Distributed Message Service for Kafka
Distributed Message Service for RabbitMQ
Distributed Message Service for RocketMQ
Cloud Service Engine
Multi-Site High Availability Service
EventGrid
Dedicated Cloud
Dedicated Computing Cluster
Business Applications
Workspace
ROMA Connect
Message & SMS
Domain Name Service
Edge Data Center Management
Meeting
AI
Face Recognition Service
Graph Engine Service
Content Moderation
Image Recognition
Optical Character Recognition
ModelArts
ImageSearch
Conversational Bot Service
Speech Interaction Service
Huawei HiLens
Video Intelligent Analysis Service
Developer Tools
SDK Developer Guide
API Request Signing Guide
Terraform
Koo Command Line Interface
Content Delivery & Edge Computing
Content Delivery Network
Intelligent EdgeFabric
CloudPond
Intelligent EdgeCloud
Solutions
SAP Cloud
High Performance Computing
Developer Services
ServiceStage
CodeArts
CodeArts PerfTest
CodeArts Req
CodeArts Pipeline
CodeArts Build
CodeArts Deploy
CodeArts Artifact
CodeArts TestPlan
CodeArts Check
CodeArts Repo
Cloud Application Engine
MacroVerse aPaaS
KooMessage
KooPhone
KooDrive

Notes

Updated on 2025-01-24 GMT+08:00

Pre-Migration

  • You need to check the OS version of the server you are migrating. If it is too early, for instance, Windows Server 2008, the kernel may be incompatible and services on the server may fail to start after the migration is complete. To prevent that, you need to evaluate whether a lift-and-shift migration is suitable for the server before the migration.
  • You are advised to disable any software such as antivirus software that may prevent the SMS Agent from start on the server. If you are not sure whether there is a software conflict with the Agent, back up your data before the migration.
  • Linux block-level migration is in the open beta test (OBT) and is only recommended for testing scenarios.
  • Ensure that the VirtIO drivers are installed in the source server OS, or the target server may fail to start after the migration is complete. If your source server runs on Huawei Cloud, you can install the drivers by referring to Installing VirtIO Drivers.

Network

Migration Duration

  • The migration speed is affected by factors such as network bandwidth, disk I/O, CPU and memory usage, and file size and quantity, so it is impossible to accurately estimate the migration duration. The remaining migration duration estimated by SMS for a migration task is for reference only. For more information, see FAQs about Migration Duration.
  • It is recommended that data migration and service cutover be completed within 30 days.
  • The time required for an incremental synchronization is affected by many factors, such as the number of incremental files, the continuity of valid blocks, and the size of incremental data. It is impossible for SMS to estimate the required time.

In-Migration

  • Before a migration is complete, do not perform operations on the OS or disks of the target server, including but not limited to changing or reinstalling the OS.
  • Make sure you have backed up any data on the target server that you need to save and ensure that the disks can be formatted. Disks on the target server will be formatted and re-partitioned based on the source disk settings during the migration.
  • During the migration of a Windows source server, do not restart the source server. The restart will disconnect the source server from the SMS console. To retry the migration, you need to delete the migration task and create a new one.
  • Do not restart the Agent during a Windows migration or a Linux block-level migration.
  • You are advised not to start the Agent during a Linux file-level migration unless necessary, even though resumable data transmission is supported.
  • During the migration, a temporary pay-per-use disk is created and attached to the target server to ensure that the migration runs normally. After the migration is complete, the disk is automatically detached and deleted. If you manually delete the migration task before it completes, you need to manually delete the temporary disk to avoid extra fees.
  • If an error occurs during the migration, you are advised to provide migration logs to technical support engineers so that the fault can be resolved quickly.

    For details about how to get migration logs, see Where Can I Find the Agent Run Logs?

Post-Migration

  • SMS migrates OS and data. It ensures data consistency before and after the migration, but does not ensure that your applications will run properly on the target server after the migration is complete. You may need to adjust your applications by yourself.
  • SMS ensures data consistency before and after the migration but does not provide tools for validating data consistency. You can use third-party tools if needed.

We use cookies to improve our site and your experience. By continuing to browse our site you accept our cookie policy. Find out more

Feedback

Feedback

Feedback

0/500

Selected Content

Submit selected content with the feedback