Hyper Converged Infrastructure (HCI/aSV)

Sangfor HCI and aSV provide a unified infrastructure combining compute, storage, networking, and built-in security to simplify deployment, operations, and services.
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6.11.1R1
Hyper Converged Infrastructure (HCI/aSV) {{ breadTitle }} User Manual Platform Operation and Maintenance Platform Hardware Maintenance Hardware Troubleshooting System Disk Replacement
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System Disk Replacement

{{ $t('productDocDetail.updateTime') }}: 2026-01-05

Description

If the system disk fails and the node is offline, or the system disk is detected as a sub-healthy disk, you can safely replace the system disk.

Precautions

  1. If the system disk that does not support the RAID group is used to replace the disk, please contact Sangfor technical support.
  2. Replacement of the system disk on multiple nodes simultaneously is not supported.
  3. Not allowed to replace the system disk when there are tasks in the cluster.
  4. Replace the main controller system disk is not supported. If you need to replace it, you need to switch the main controller to another node before replacing it.
  5. The witness node does not support the system disk replacement function.
  6. Before and after replacing the system disk, it is forbidden to change the physical NIC.
  7. After the system disk is replaced successfully, the maintenance mode will not be exited immediately. You need to wait for 1 minute for the node service to restart before exiting the maintenance mode manually.
  8. If the system disk has insufficient space, the system disk configuration backup will fail.
  9. Before replacing the system disk, you need to enter the single-node maintenance mode. Do not check After entering the maintenance mode, the node will shut down automatically checkbox.
  10. The system will automatically back up the system disk data to other nodes every day and support the replacement of the system disk when the node is offline due to system disk failure.

Prerequisites

None.

Steps

  1. Find the corresponding node in Nodes > System Disks.
  2. Click Replace System Disk to enter maintenance mode.
  3. When entering the maintenance mode, do not check After entering the maintenance mode, the node will shut down automatically. The shutdown will cause the node system disk data not to back up.
  4. To enable maintenance mode, you need to migrate or shut down the virtual machines and virtual devices running on the node.
  5. After confirming the virtual machine's processing, click Next, and you will be prompted to enter the administrator password.
  6. The node enters the maintenance mode, and the prompt is not applicable to the system disk to form a RAID scenario.
  7. Click Confirm Replacement to enter the system backup interface.
  8. Click Start Backup to back up the system disk configuration information of the node that needs to be replaced with another node.
  9. After the backup is complete, the interface will display the instructions for replacing the system disk.
  10. After removing the original system disk, insert the new system disk. Start the physical node through the installation CD/U disk of the same version and choose to replace the system disk. Then, enter the new system disk installation wizard, and choose to replace the system disk.
  11. Enter the configuration network interface page, and write the node's IP to be restored in the local node's IP.
  12. The system will automatically obtain the latest system disk data backup based on the entered IP for recovery.
  13. Wait for the recovery to complete and prompts the node to restart.
  14. After manually replacing the system disk, click Finish and wait for one minute and exit the maintenance mode.