How Do I Detach the Temporary System Disk from My Target Server and Re-attach the Original Disk?
The solution described here works for ECSs except spot ECSs. It does not work for HECSs. Spot ECSs and HECSs do not allow you to detach or attach disks. If your target server is a spot ECS or HECS, contact technical support.
Symptom
After you deleted a failed or suspended migration task from the SMS console, the target server was still using the temporary system disk, whose name starts with SMS. As a result, the original system disk could not be re-attached.
Possible Causes
If a migration task fails or is suspended, the system will not automatically detach the temporary system disk and re-attach the original system disk. If you want to restore this server to its original condition, you need to perform this step manually.
Solution
- Detach the temporary system disk.
- Log in to the ECS console.
- In the server list, locate this server and click its name.
- Click the Disks tab, locate disk SMS-Temp_Disk_Deleted-after-migration, and click Detach.
- Click Yes.
- Detach the original system disk.
The original system disk is attached as a data disk. You need to detach it and attach it as a system disk again.
- Detach the original system disk from the target server by referring to step 1.
- Log in to the EVS console. In the disk list, locate the disk you detached and click the disk name.
Check whether the disk has changed from a data disk to a system disk. If it has, go to the next step.
- Detach the original system disk from the target server by referring to step 1.
- Reattach the original system disk.
Reattach the disk you detached in step 3 as a system disk to the target server. For details, see Calling APIs.
Disk Management FAQs
- Why Was a 40 GB EVS Disk Added to the Target Server During the Migration?
- Why Can't I Attach the Original System Disk Back to a Target Server?
- How Do I Resize Partitions and Disks When I Migrate a Windows Source Server?
- How Do I Shrink the Disk Partitions on a Source Server Running Windows?
- How Do I Exclude a Partition from Migration in Windows?
- How Do I Resolve Error "Target server has fewer disks than source server. Select another target server" When I Configure the Target Server?
- What Are the Requirements on Disks on a Target Server?
- How Can I Migrate a Source Server with a Large System Disk?
- How Do I Resolve Error "Some disks on the target server are smaller than those on the source server. Select another target server" When I Configure the Target Server?
- Can SMS Migrate Local Disks on a Source Server?
- Why Do I Need to Set the Target Server Disk Be at Least 1 GB Larger than the Paired Source Server GPT Disk on Alibaba Cloud?
- Why Can't I Specify Whether to Migrate a Physical Volume When I Resize Disk Partitions in Linux?
- Why Can't I Specify Whether to Migrate a Logical Volume When I Resize Disk Partitions in Linux?
- What Are the Rules for Resizing Volume Groups, Disks, and Partitions?
- How Do I Migrate a Server with a System Disk Larger Than 1 TB?
- How Do I Detach the Temporary System Disk from My Target Server and Re-attach the Original Disk?
- Why Is There Less Data on the Target Server After the Migration Than There Was on the Source Server?
- How Do I Merge Disks During a Linux Migration?
- How Do I Split a Disk During a Linux Migration?
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