System Restart, Restore, and Sync Tips and FAQs

 

The Appliance Controller processes, such as smbd, are managed by the following service utilities, which serve as monitoring tools for the init daemon:

  • Upstart and System V on CentOS6
  • systemd on CentOS7

If Appliance Controller processes are inadvertently interrupted, they have been configured to automatically restart. If you need to stop or restart processes, you can use the following commands from the rootsh shell:

  • initctl and /etc/init.d on CentOS6
  • systemctl on CentOS7

Example Command from rootsh: Restart smbd on CentOS6

# initctl restart smbd

smbd start/running, process 7814

 

When you issue the system restart services all command on the master node of an NFS NAS cluster with NAS failover configured, a NAS failover occurs. If NFS clients have shares mounted when the NAS failover occurs, the NFS services that were transferred to the new master node may not allow I/O from the clients. In turn, the clients are unable to mount NFS shares.

To resolve this issue, you must manually restart NFS services.

From the master node log into the system command line:

  1. Log in to the command line using the following credentials:
    • User name: stornext
    • Password: <StorNext user account password>

      Note: password is the default password for the stornext user account. If the password has been changed, use the current password. The first time you log in, you are prompted to change the password to a different one.

  2. Enter sudo rootsh to gain root user access.
  3. Enter the password for the stornext user account again.
  1. Restart NFS services on the new master node. Enter:

    systemctl restart nfs-config

    systemctl restart nfs-lock

    systemctl restart nfs-server

  2. Verify that the NFS services have been restarted by issuing the following command:

    exportfs