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How Does SMS Differ from IMS in the Migration Scenario?
Updated on 2024-07-17 GMT+08:00
How Does SMS Differ from IMS in the Migration Scenario?
The following describes the differences between SMS and IMS in terms of application scenarios, migration processes, and service continuity.
Application Scenarios
- IMS is used to migrate on-premises servers to the cloud. IMS enables you to create images for source servers and use the images for migration. The images are usually used for deploying specific software environments, batch deploying software environments, and backing up server running environments. For details, see IMS Application Scenarios.
- SMS is used to migrate x86 physical servers or VMs on premises or in private or public clouds to Huawei Cloud. For details, see What Is SMS?
Migration Process
- To use IMS for migration, you need to create images for source servers and then use the images to create target servers. For details, see Creating a Private Image.
- To use SMS for migration, you need to install and start the Agent on each source server and start the migration. For details, see How Do I Install the Agent on Source Servers?
Service Continuity
- If you use IMS for migration, your services need to be stopped for a long time for image creation.
- If you use SMS for migration, your services do not have to go down during the migration. You only need to pause services briefly for service cutover before the final synchronization. After the final synchronization is complete, you can start services on the target server. SMS ensures minimal downtime.
Service cutover refers to switching services from the source to the target.
Parent topic: Product Consultation
Product Consultation FAQs
- Can I Migrate Servers from Other Clouds to Huawei Cloud Using SMS?
- Can I Migrate ECSs from Huawei Cloud to On-Premises Environments or Other Clouds Using SMS?
- Can I Ask Huawei Cloud Technical Support to Help Me Migrate Services?
- Can I Migrate Workloads to a DeH, DeC, Kunpeng ECS, or BMS Using SMS?
- Does SMS Support Resumable Data Transfer?
- How Do I Migrate an ECS from One Account to Another Using SMS?
- How Do I Migrate an ECS from One Region to Another Using SMS?
- Will My Services on the Source Server Be Interrupted During Migration?
- How Do I Obtain an AK/SK Pair for a Huawei Cloud Account?
- How Do I Obtain an AK/SK Pair for an IAM User?
- How Do I Migrate a Linux Source Server as a Non-root User?
- What Information Does SMS Collect About Source Servers?
- How Do I Select a Target Server?
- How Do I Create an ECS?
- What Is Block-Level Migration?
- What are Valid Data Blocks?
- How Does Migration Using SMS Differ from Migration Using IMS?
- Why Is the OS Name of the Target ECS Displayed on the ECS Console Different from That of the Source Server?
- How Do I Determine Whether a Migration Is Complete?
- Can I Migrate Only Some Workloads from a Source Server?
- Can the Target Server Run a Different Type of OS from the Source Server?
- What Determines the Specifications of a Target Server?
- How Do I Download the SMS-Agent for Windows and the SHA256 Verification File?
- Can I Migrate a Source Server If There Is No Corresponding Image Available on Huawei Cloud?
- How Does SMS Differ from IMS in the Migration Scenario?
- How Do I Display the OS Name of a Target Server on the ECS Console?
- What Are the Snapshots of a Target Server Used for?
- In a Linux File-Level Migration, How Do I Exclude Specific Directories from Migration and Synchronization?
- Will an Incremental Synchronization Overwrite Existing Data on a Launched Target Server?
- How Do I Create a Target Server That Meets the SMS Requirements?
- Can I Use SMS to Migrate Self-built Databases, Big Data Services, or Websites Deployed on a Source Server?
- Can I Use an AK/SK Pair of a Federated User (Virtual IAM User) for Authentication During the SMS-Agent Startup?
- How Do I Synchronize Data in Specific Directories After a Linux File-Level Migration Is Complete?
- Will the Migration Be Affected If the SSH Service Does Not Use Default Port 22 on the Source Server?
- How Do I Obtain the SMS Domain Name?
- How Many Resources Will Be Used for a Linux Block-Level Migration?
- How Do I Configure Data Compression for a Linux Block-Level Migration?
- Do I Need to Activate the Windows OS and Paid Software After the Migration Is Complete?
- What Do I Do If the Source Server's Clocks Are Not Synchronized to the Target Server?
- How Do I Set the Number of Concurrent Processes for Linux File-Level Migrations?
- Which Directories Are Not Synchronized by Default During Incremental Synchronization on a Linux Server?
- How Do I Verify Data Consistency Between the Source and Target Servers?
- Can I Use a Temporary AK/SK Pair for Migration?
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