dmevent_tool (8)

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

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.

-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

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

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

Brian Wood <[email protected]>