vxfenmode - I/O Fencing configuration file
The /etc/vxfenmode file contains setup information used by I/O Fencing. The system administrator is responsible for maintaining this file correctly and consistently across all systems in the cluster. If the configuration file is not present, I/O Fencing runs in SCSI3 mode. This default behavior is a relict from a prior release and should be abandoned in favor of explicit settings. A pound sign (#) in the first column of a line means that the line is a comment. Blank lines are ignored. The /etc/vxfenmode file supports the following parameters:vxfen_mode - sets the main operation mode of I/O Fencing
FORMAT: vxfen_mode=[scsi3|customized|disabled]vxfen_mechanism - specifies which mechanism of customized fencing is to be used by I/O Fencing. If the vxfen_mode is customized, a valid vxfen_mechanism is mandatory. NOTE: The customized mechanism is only supported in certain configurations. It is not available for customers to write their own fencing mechanism.
scsi3 use scsi3 persistent reservation disks customized use script based customized fencing (support for this is limited!) disabled run the driver but dont do any actual fencing
FORMAT: vxfen_mechanism=[cps|<user_defined>]vxfen_script_timeout - determines the time vxfend should wait for customized fencing scripts to finish execution before attempting to manually shut them down. If this option is omitted, the default value is 120 seconds. This parameter is only used when running vxfen_mode=customized
cps use coordination point server for cluster membership coordination <user_defined> use a customized fencing mechanism created by the end-user (not supported at this time)
FORMAT: vxfen_script_timeout=[<user_defined>]scsi3_disk_policy - determines the way in which I/O Fencing communicates with the coordination disks
<user_defined> time to wait for customized fencing scripts before shutting them down
raw connect to disks using the native interface dmp use dynamic multipathingAlthough vxfen supports raw for scsi3_disk_policy, it is now deprecated. It is recommended to use dmp as the scsi3_disk_policy for coordinator disks.
The following example shows a typical /etc/vxfenmode file configuring I/O Fencing to run in scsi3 mode with a dmp disk connection:The following example shows a typical /etc/vxfenmode file configuring I/O Fencing to run in customized mode, using cps mechanism.
/etc/vxfenmode I/O Fencing configuration file
vxfenadm(1M), vxfentsthdw(1M), vxfendebug(1M), vxfenconfig(1M), vxfenclearpre(1M)
|VCS 5.1 SP1||vxfenmode (4M)|