VCS failed to restart

Issue Description：

In VCS 1+1 or N+1 two-node cluster mode, if the operator restarts all the other nodes at the same time when one node is faulty, the VCS fails to restart.

Possbile reason：

To avoid dual-active situation, single-node start is forbidden in the default VCS configuration.

Solution :

1. Log in to a node where the VCS fails to start as the root user. The operating system is hardened by default and remote login as the root user is forbidden. Therefore, you need to log in as a common user and then switch to the root user.
2. Log in as the cgpexpert user. The default password is mt2013@HW.
3. Run the su - root command to switch to the root user. The default password is cnp200@HW.
4. Modify the gabtab configuration file.
   1. Open the gabtab configuration file.

      vi /etc/gabtab

   2. Press I to make the file editable.
   3. Replace /sbin/gabconfig -c -n 2 with /sbin/gabconfig -c -n 1.

      /sbin/gabconfig -c -n 1

   4. Press Esc and run the :wq command to save the file and exit.
5. Run the reboot command to restart the node.
6. When the VCS starts successfully, refer to 2 to restore the default configuration of the gabtab file.