To enable LLT:

1. Edit the following file to set the value of LLT_START and LLT_STOP to 1.

   /etc/sysconfig/llt

2. Start the LLT module.

   For RHEL 7, SLES 12, and supported RHEL distributions:

   # systemctl start llt

   For earlier versions of RHEL, SLES, and supported RHEL distributions:

   # /etc/init.d/llt start

To enable GAB:

1. Edit the following file to set the value of GAB_START and GAB_STOP to 1.

   /etc/sysconfig/gab

2. Start the GAB module.

   For RHEL 7, SLES 12, and supported RHEL distributions:

   # systemctl start gab

   For earlier versions of RHEL, SLES, and supported RHEL distributions:

   # /etc/init.d/gab start

To enable I/O fencing:

1. Edit the following file to set the value of VXFEN_START and VXFEN_STOP to 1 .

   /etc/sysconfig/vxfen

2. Start the I/O fencing module.

   For RHEL 7, SLES 12, and supported RHEL distributions:

   # systemctl start vxfen

   For earlier versions of RHEL, SLES, and supported RHEL distributions:

   # /etc/init.d/vxfen start