Disabling LLT, GAB, and I/O fencing

Last published : Jun 11, 2026
Complete the following procedures to disable the kernel modules.
To disable I/O fencing
  1. Edit the following the file to set the value of VXFEN_START to 0.
    /etc/default/vxfen
    1. Stop the vxfen module.
    # /etc/methods/vxfenext -stop -dvxfen > /dev/null 2>&1
    1. Remove the following Object Disk Manager (ODM) entries.
    # odmdelete -q"name=vxfend" -o CuAt >/dev/null 2>&1
    # odmdelete -q"name=vxfend" -o CuDv >/dev/null 2>&1
    # odmdelete -q"uniquetype='vxfend/node/vxfend'" -o PdAt \
    >/dev/null 2>&1
    # odmdelete -q"uniquetype='vxfend/node/vxfend'" -o PdDv \
    >/dev/null 2>&1
    # odmdelete -q"rule='/etc/methods/vxfenext -define -dvxfend'" \
    -o Config_Rules >/dev/null 2>&1
    # odmdelete -q"name=vxfen" -o CuAt >/dev/null 2>&1
    # odmdelete -q"name=vxfen" -o CuDv >/dev/null 2>&1
    # odmdelete -q"uniquetype='vxfen/node/vxfen'" -o PdAt \
    >/dev/null 2>&1
    # odmdelete -q"uniquetype='vxfen/node/vxfen'" -o PdDv \
    >/dev/null 2>&1
    # odmdelete -q"rule='/etc/methods/vxfenext -define -dvxfen'"\
    -o Config_Rules >/dev/null 2>&1
    To disable GAB
    1. Edit the following the file to set the value of GAB_START to 0.
    /etc/default/gab
  2. Unload the GAB driver.
# /usr/sbin/slibclean
# /etc/methods/gabkext -stop
  1. Remove the following Object Disk Manager (ODM) entries.
# odmdelete -q"name=gab" -o CuAt > /dev/null 2>&1
# odmdelete -q"name=gab" -o CuDv > /dev/null 2>&1
# odmdelete -q"uniquetype='gab/node/gab'" -o PdDv \
> /dev/null 2>&1
# odmdelete -q"uniquetype='gab/node/gab'" -o PdAt \
> /dev/null 2>&1
# odmdelete -q"rule='/etc/methods/gabkext -define'" \
-o Config_Rules > /dev/null 2>&1
To disable LLT
  1. Unload the LLT driver. You can ignore any errors that are displayed as a result of the command.
# /usr/sbin/strload -u -d /usr/lib/drivers/pse/llt
  1. Remove the following Object Disk Manager (ODM) entry.
# odmdelete -q"rule='/etc/methods/loadllt'" -o Config_Rules
  1. Edit the following file to set the value of LLT_START to 0.
/etc/default/llt