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?
Scenario
You wanted to migrate a Windows server from Alibaba Cloud. The server had a 40 GB GPT disk, and the disk only had a single partition. When you configured the target server, you chose a 40 GB disk as the source server pair, and the system displayed the message "Some disks on the target server are smaller than those on the source server. Select another target server." The size recommended for this target server disk is 41 GB.
Possible Causes
When a disk is formatted in GPT format, an MSR partition is automatically generated. This partition is invisible to users and can only be viewed by using DiskPart.
On Alibaba Cloud, an MSR partition occupies 15 MB by default.
On Huawei Cloud, an MSR partition occupies 128 MB by default.
When a GPT disk is migrated from Alibaba Cloud to Huawei Cloud, 113 MB space needs to be provided for the MSR partition. Since the EVS disk capacity must be expanded in increments of 1 GB, the paired target server disk must be at least 1 GB larger than the source GPT disk.
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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