Replace the Harddisk of the NVR without loosing data

Hi, all!

Good day to you!

In the post, I will explain how to replace back your old HDD.

Process

1. Log into the VCN by SSH using putty.
   

2. Check the content of the disk type file. If the content is 2, the disk is offline. Run the following command:
   

   cat /share/init.d/disktype
   

3. Manually change the value of disk type and try to restore services.
   

• If the /share/init.d/tabledisk file exists but the /opt/SmartDate directory does not exist, the VCN5X0 works in NON-RAID mode. In this case, set disk type to 0.
  

  Command: echo 0 > /share/init.d/disktype
  

• If the /share/init.d/tabledisk file does not exist and the /opt/SmartDate directory exists, the VCN5X0 works in RAID1 or RAID5 mode. In this case, set disk type to 1.
  

  Command: echo 1 > /share/init.d/disktype.
  

Run the reboot command to restart the server and check whether services are restored.

Thanks for reading!

Hope it can help you!