Environment variables to start and stop VCS modules

The start and stop environment variables for AMF, LLT, GAB, VxFEN, and VCS engine define the default VCS behavior to start these modules during system restart or stop these modules during system shutdown.

Note:

The startup and shutdown of AMF, LLT, GAB, VxFEN, and VCS engine are inter-dependent. For a clean startup or shutdown of VCS, you must either enable or disable the startup and shutdown modes for all these modules.

In a single-node cluster, you can disable the start and stop environment variables for LLT, GAB, and VxFEN if you have not configured these kernel modules.

Table: Start and stop environment variables for VCS describes the start and stop variables for VCS.

Table: Start and stop environment variables for VCS

Environment variable

Definition and default value

AMF_START

Startup mode for the AMF driver. By default, the AMF driver is enabled to start up after a system reboot.

This environment variable is defined in the following file:

/etc/sysconfig/amf

Default: 1

AMF_STOP

Shutdown mode for the AMF driver. By default, the AMF driver is enabled to stop during a system shutdown.

This environment variable is defined in the following file:

/etc/sysconfig/amf

Default: 1

LLT_START

Startup mode for LLT. By default, LLT is enabled to start up after a system reboot.

This environment variable is defined in the following file:

/etc/sysconfig/llt

Default: 1

LLT_STOP

Shutdown mode for LLT. By default, LLT is enabled to stop during a system shutdown.

This environment variable is defined in the following file:

/etc/sysconfig/llt

Default: 1

GAB_START

Startup mode for GAB. By default, GAB is enabled to start up after a system reboot.

This environment variable is defined in the following file:

/etc/sysconfig/gab

Default: 1

GAB_STOP

Shutdown mode for GAB. By default, GAB is enabled to stop during a system shutdown.

This environment variable is defined in the following file:

/etc/sysconfig/gab

Default: 1

VXFEN_START

Startup mode for VxFEN. By default, VxFEN is enabled to start up after a system reboot.

This environment variable is defined in the following file:

/etc/sysconfig/vxfen

Default: 1

VXFEN_STOP

Shutdown mode for VxFEN. By default, VxFEN is enabled to stop during a system shutdown.

This environment variable is defined in the following file:

/etc/sysconfig/vxfen

Default: 1

VCS_START

Startup mode for VCS engine. By default, VCS engine is enabled to start up after a system reboot.

This environment variable is defined in the following file:

/etc/sysconfig/vcs

Default: 1

VCS_STOP

Shutdown mode for VCS engine. By default, VCS engine is enabled to stop during a system shutdown.

This environment variable is defined in the following file:

/etc/sysconfig/vcs

Default: 1