{{ $t('productDocDetail.updateTime') }}: 2026-01-09

Starting from aCloud6.0.0., system disk can be replace individually without replacing the whole node, including the storage disk.

The business integrity and availability can be ensure by replacing the system disk through the following steps:

Step 1.Migrate VM

Step 2.Enter Host Maintenance Mode

Step 3.System config backup

Step 4.Rebooting and proceed with OS disk replacement

Step 5.ISO guided OS re-installation

1. You will be prompted to enter maintenance after clicking Repalce System Disk.
   

2. Before enter the maintenance mode, it provides the options to migrate VM to another host or shutdown the VM.
   

3. After host entered maintenance mode, proceed to replace the system disk.
   

If there have RAID configuration done on the OS disk, kindly contact technical
support to assist you on your issue.

4. Click on the backup to save a copy of config into available host.
   
   
5. Click Finish to complete the system disk replacement wizard.
   

6. Make a bootable USB with aCloud 6.0.0 EN, and restart the node and boot the aCloud ISO from USB.
7. Select third option Replace Sysdisk Install Sangfor aCloud on this.

8. Configure network configuration for the booting ISO.

Local IP: Replacement node IP

Netmask: Network subnet mask

Master IP: Cluster IP address

Gateway: Default gateway for the IP

9. Select Yes to restoring backup configuration from the system.

After click OK, it has to wait some time for aCloud firmware installation on this new OS disk.

10. After all, it has to quit the maintenance mode to verify the new OS disk is working fine.