Step 1: Import the information of a migration source

Migration sources can be physical servers, VMware virtual machines (VMs), Xen, KVM, or Hyper-V VMs, and VMs that run in public clouds. Before you use Server Migration Center (SMC) for server migration, you must run the SMC client with your Alibaba Cloud account on the migration source, and import the migration source information. Then, you can log on to the SMC console to perform migration. This topic describes how to import the information of a migration source.

1. Download and decompress the SMC client package.
   1. Download the SMC client package.
      If the migration source has access to the Internet, you can also download the SMC client package to the migration source.

      Note You can log on to the SMC console. In the upper-right corner of the page, click Download Latest SMC Client to download the latest version of the SMC client.
   2. Upload the SMC client package to the migration source.
      • You can build an FTP site to upload files. For more information, see Build an FTP site on a Windows instance or Build an FTP site on a Linux instance.
      • You can also use a remote connection tool that supports file transfer. This allows you to upload the SMC client package to the migration source.
   3. Decompress the SMC client package.
      The SMC client is available for Windows and Linux of the 32-bit version (i386) and the 64-bit version (x86_64). Select the version that is compatible with the migration source. The following figure shows the decompressed client folders for Windows.
      Note Linux systems run the unzip <name of the SMC client package> command. This allows you to decompress the SMC client package. Make sure that the unzip utility is installed on the source server. For example, the installation command for CentOS 7 is yum -y install unzip.

      
   4. Decompress the client package that is compatible with the operating system of your source server.
      The following figure shows the directories and files in the decompressed folder.

      Table 1. SMC client folders and files

      Folder or file	Description
      go2aliyun_client.exe	The executable file of the command-line interface (CLI) program for Windows.
      go2aliyun_gui.exe	The executable file of the graphical user interface (GUI) program for Windows. For more information, see Use the Windows GUI version of an SMC client.
      go2aliyun_client	The executable file of the CLI program for Linux.
      user_config.json	The configuration file of the migration source and destination.
      Excludes	The folder of the files and directories that are excluded from migration.
      client_data	The migration data file. This includes the intermediate instance information and migration progress.

2. Optional. Exclude files or directories from migration.
   Note If the source server supports block replication, you cannot exclude files or directories from migration.

   The configuration files are located in the Excludes directory of the SMC client. If a configuration file is lost or deleted by accident, you can create another one.

   • System disk configuration file: rsync_excludes_win.txt (for Windows servers) or rsync_excludes_linux.txt (for Linux servers)

   • Data disk configuration file: named by adding a suffix disk [disk index number] to the system disk, for example, rsync_excludes_win_disk1.txt (for Windows servers) or rsync_excludes_linux_disk1.txt (for Linux servers)

   • Example 1: Exclude files or directories from migration of a Windows server
     • System disk
       • Specify the files or directories to be excluded:

         C:\MyDirs\Docs\Words
         C:\MyDirs\Docs\Excels\Report1.txt

       • Add the following information to the rsync_excludes_win.txt file:

         /MyDirs/Docs/Words/
         /MyDirs/Docs/Excels/Report1.txt

     • Data disk
       • Specify the files or directories to be excluded:

         D:\MyDirs2\Docs2\Words2
         D:\MyDirs2\Docs2\Excels\Report2.txt

       • Add the following information to the rsync_excludes_win_disk1.txt file:

         /MyDirs2/Docs2/Words2/
         /MyDirs2/Docs2/Excels2/Report2.txt

       Note

       To exclude a Windows directory, perform the following operations:

       • Remove the prefix of the directory (scr_path). In the preceding example, you must remove D:.
       • Replace \ with /.
   • Example 2: Exclude files or directories from migration of a Linux server
     • System disk (root directory/):

       • Specify the files or directories to be excluded:

         /var/mydirs/docs/words
         /var/mydirs/docs/excels/report1.txt

       • Add the following information to the rsync_excludes_linux.txt file:

         /var/mydirs/docs/words/
         /var/mydirs/docs/excels/report1.txt

     • Data disk

       • Specify the files or directories to be excluded:

         /mnt/disk1/mydirs2/docs2/words2
         /mnt/disk1/mydirs2/docs2/excels2/report2.txt

       • Add the following information to the rsync_excludes_linux_disk1.txt file:

         /mydirs2/docs2/words2/
         /mydirs2/docs2/excels2/report2.txt

       Note To exclude a Linux directory, you must remove the prefix of the directory (scr_path). In the preceding example, you must remove /mnt/disk1.
3. Run the SMC client to import the migration source information.
   1. Enter the SMC client folder and run the SMC client.
      • For Windows servers, use one of the following methods to run the SMC client:
        • To run the Windows GUI version, double-click the go2aliyun_gui.exe file.
        • To run the Windows CLI version, double-click the go2aliyun_client.exe file.
        Note When you run the program, you must click OK to confirm that you have the administrator privilege.
      • For Linux servers, run the SMC client as a root or sudo user.
        • In the directory of the go2aliyun_client file, run the following commands as a root user:

          chmod +x go2aliyun_client

          ./go2aliyun_client

        • In the directory of the go2aliyun_client file, run the following commands as a sudo user:

          sudo chmod +x ./go2aliyun_client

          sudo ./go2aliyun_client

        If you have required permissions on the migration source system, you can also run the following commands to import the migration source information. In this case, you do not need to enter your AccessKey pair.

        • Run the following command as a root user:

          ./go2aliyun_client --accessid=<Your AccessKeyID> --secretkey=<Your AccessKeySecret>

        • Run the following command as a sudo user:

          sudo ./go2aliyun_client --accessid=<Your AccessKeyID> --secretkey=<Your AccessKeySecret>

   2. Enter the AccessKey pair of your Alibaba Cloud account.
      Note If the AccessKey pair you entered is invalid, open the user_config.json file, delete the access_id and secret_key values, and then run the client again.

      • For Windows servers
        • If you use the Windows GUI version, enter the AccessKey ID in the Access Id field, enter the AccessKey secret in the Secret Key field, and then click Start. For more information, see Use the Windows GUI version of the SMC client.
        • If you use the Windows CLI version, enter the AccessKey ID and AccessKey secret, and then press Enter.
      • For Linux servers
        Enter the AccessKey ID and AccessKey secret, and then press Enter.
        The following prompts may appear:

        • The rsync tool is installed in most mainstream migration sources. If rsync is not installed on the migration source, the SMC client displays a prompt. Enter yes to install rsync, as shown in the following figure.
        • If SELinux is enabled on the migration source, you are prompted to disable SELinux. Enter yes to disable SELinux, as shown in the following figure.
   Notice Do not close the client until the migration is complete. Otherwise, the migration source will be disconnected from the SMC console and the migration fails.