Enabling LLT, GAB, and I/O fencing

Last published : Sep 11, 2026
Complete the following procedures to enable the kernel modules.
To enable LLT:
  1. In the /etc/default/llt file, ensure LLT_START=1.
  2. Create llt.odm in any directory with the following text:
    Config_Rules:
         phase = 2
         seq = 21
         rule = "/etc/methods/loadllt"
    1. Run the following commands with the file path.
    \# odmadd $DIR/llt.odm
    \# /etc/methods/loadllt
To enable GAB:
  1. In the /etc/default/gab file, ensure GAB_START=1.
  2. Run the following commands:
    \# /usr/sbin/slibclean
    \#    /usr/bin/odmadd /usr/lib/methods/gab.odm
    \#    /etc/methods/gabkext -start
    To enable I/O fencing:
    1. In the /etc/default/vxfen file, ensure VXFEN_START=1.
    2. Run the following commands:
    \# /usr/sbin/slibclean
    \# /usr/bin/odmadd /usr/lib/methods/vxfen.odm
    \# /usr/bin/odmadd /usr/lib/methods/vxfend.odm
    \# /etc/methods/vxfenext -start -dvxfen
    \# /etc/methods/vxfenext -start -dvxfend
  3. Reboot the nodes.
After enabling kernel modules, you can run the init scripts for each kernel module to start LLT, GAB, and I/O fencing