dmeventd(8) [centos man page]

DMEVENTD(8)						      System Manager's Manual						       DMEVENTD(8)

NAME

       dmeventd - Device-mapper event daemon

SYNOPSIS

       dmeventd [-d [-d [-d]]] [-f] [-h] [-R] [-V] [-?]

DESCRIPTION

       dmeventd  is the event monitoring daemon for device-mapper devices.  Library plugins can register and carry out actions triggered when par-
       ticular events occur.

LVM PLUGINS

       Mirror Attempts to handle device failure automatically.	See lvm.conf(5).

       Raid   Attempts to handle device failure automatically.	See lvm.conf(5).

       Snapshot
	      Monitors how full a snapshot is becoming and emits a warning to syslog when it exceeds 80% full.	The warning is repeated when  85%,
	      90% and 95% of the snapshot is filled.  See lvm.conf(5).

       Thin   Monitors how full a thin pool is becoming and emits a warning to syslog when it exceeds 80% full.  The warning is repeated when 85%,
	      90% and 95% of the thin pool is filled.  See lvm.conf(5).

OPTIONS

       -d     Repeat from 1 to 3 times (-d, -dd, -ddd) to increase the detail of debug messages sent to syslog.  Each extra d adds more  debugging
	      information.

       -f     Don't fork, run in the foreground.

       -h, -? Show help information.

       -R     Replace  a running dmeventd instance. The running dmeventd must be version 2.02.77 or newer. The new dmeventd instance will obtain a
	      list of devices and events to monitor from the currently running daemon.

       -V     Show version of dmeventd.

SEE ALSO

       lvm(8), lvm.conf(5)

Red Hat Inc					      DM TOOLS 2.02.105(2)-RHEL7 (2014-03-26)					       DMEVENTD(8)

DMEVENT_TOOL(8) 														   DMEVENT_TOOL(8)

NAME

       dmevent_tool - A utility used to load a DSO into dmeventd and (un)register devices with it for monitoring

SYNOPSIS

       dmevent_tool -[Vhmru] {RAID device name} {DSO Name}

DESCRIPTION

       dmevent_tool is a userspace utility used to register/unregister DSOs with the daemon dmeventd.

       If used with the -m command line parameter users can display all of the actively dmeventd monitored devices.

OPTIONS

       -V      Show version of dmevent_tool

       -{h/?}  Show this help information

       -m[r|u] List all currently active device mapper devices
	       and their current status with dmeventd
	       for registered (-r)/unregistered (-m) devices
		   Syntax: dmevent_tool -m[u|r]

       -a[r|u] Same as -m, but for devices with UUID only!
		   Syntax: dmevent_tool -a[u|r]

       -r      Register a device with dmeventd
		   Syntax: dmevent_tool -r <device name> <path to DSO library>
		   Example: dmevent_tool -r isw_abcdeh_Volume0 libdmraid-events.so

       -u      Unregister a device with dmeventd
		   Syntax: dmevent_tool -u <device name> [<path to DSO library>]
		   Example: dmevent_tool -u isw_abcdefgh_Volume0

EXAMPLES

       dmevent_tool -m is used to display all of the actively monitored devices
	   dmevent_tool -m
	   Device Name: isw_defeaigdde_Volume0_dmraid00
	       Registered DSO:			 libdmraid-events.so
	       UUID:				 isw_defeaigdde_Volume0_dmraid00
	       status:				 Active
	       major device #:			 253
	       minor device #:			 0
	       read only device:		 No
	       number of recorded kernel events: 0
	       SATA drives in this volume group: /dev/sdb /dev/sdc

       dmevent_tool -r is used to register a volume group device with dmeventd
	   dmevent_tool -r isw_defeaigdde_Volume0_dmraid00 libdmraid-events.so

       dmevent_tool -u is used to unregister a volume group from dmeventd
	   dmevent_tool -u isw_defeaigdde_Volume0_dmraid00

DIAGNOSTICS

       dmevent_tool returns an exit code of 0 for success or 1 for error.

AUTHOR

       Brian Wood <brian.j.wood@intel.com>

Brian Wood							     1.0.0.rc3							   DMEVENT_TOOL(8)