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Man Pages
HASTMONCTL(8) FreeBSD System Manager's Manual HASTMONCTL(8)

hastmonctl
hastmon control utility

hastmonctl create [
-d
] [
-c config
] [
-e extentsize
] [
-k keepdirty
] [
-m mediasize
] name ...

hastmonctl role [
-d
] [
-c config
] ⟨init | primary | secondary⟩ all | name ...

hastmonctl status [
-d
] [
-c config
] [
all | name ...
]

hastmonctl dump [
-d
] [
-c config
] [
all | name ...
]

The hastmonctl utility is used to control the behaviour of the hastmon(8) daemon.
This utility should be used to setup initial hastmon resources role and check the resources' current status.
The first argument to hastmonctl indicates an action to be performed:
Change role of the given resource. The role can be one of:
Resource is turned off.
The resource will be started and run on this node.
Local hastmon(8) daemon will act as secondary node for the given resource - it will wait for connection from the primary node and will handle requests received from it. Also it will receive complaints from watchdog and initiate switching to primary if there are complaints and no connection from primary.
Present status of the configured resources.
In addition, every subcommand can be followed by the following options:
config
Specify alternative location of the configuration file. The default location is /usr/local/etc/hastmon.conf.
Print debugging information. This option can be specified multiple times to raise the verbosity level.

/usr/local/etc/hastmon.conf
Configuration file for hastmonctl and hastmon(8).
/var/run/hastmonctl
Control socket used by hastmonctl to communicate with the hastmon(8) daemon.

Exit status is 0 on success, or one of the values described in sysexits(3) on failure.

Run shared resource on nodeA (primary) and nodeB (secondary) and start watchdog on nodeC.
nodeB# hastmon 
nodeB# hastmonctl role secondary shared 
 
nodeA# hastmon 
nodeA# hastmonctl role primary shared 
 
nodeC# hastmon 
nodeC# hastmonctl role watchdog shared 

Switch roles for the shared resource.
nodeA# hastmonctl role secondary shared 
 
nodeB# hastmonctl role primary shared

sysexits(3), hastmon.conf(5), hastmon(8).

The hastmonctl was developed by Mikolaj Golub ⟨to.my.trociny@gmail.com⟩.
October 20, 2010 FreeBSD 12.0-RELEASE

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