Alarm Parameter %6 is empty

[hitzi]

Hi,

I check the free space of the filesystem with this parameter FileSystem.Free(F:). This works great.
But when I define a alarm with the text "File system %6 is low on free space (ony %4GB remains)" parameter %4 is working but parameter %6 is empty. I think should %6 display "F:" if I interpret this tutorial right: https://wiki.netxms.org/wiki/How_to_send_e-mail_notification_when_disk_space_is_low

Or is there another way to display the used drive letter in the alarm message?

Thanks
hitzi

[Filipp Sudanov]

In properties of a DCI on Thresholds page there is "Instance name" field. Value from this field goes into the 6-th parameter of the event.

In event log viewer, if you double-click an event, you'll see event details with all parameters, e.g.:

   "id": 112780,
   "rootId": 0,
   "code": 17,
   "name": "SYS_THRESHOLD_REACHED",
   "timestamp": 1661420446,
   "originTimestamp": 1661420446,
   "origin": 0,
   "source": 5919,
   "zone": 0,
   "dci": 4512,
   "severity": 1,
   "message": " Threshold reached for data collection item \"Free space on file system /\" (Parameter: FileSystem.Free(/); Threshold value: 0; Actual value: 29226643456; instance THIS_IS_INSTANCE)",
   "lastAlarmKey": "DC_THRESHOLD_0x0000171F_0x000011A0",
   "lastAlarmMessage": " Threshold reached for data collection item \"Free space on file system /\" (Parameter: FileSystem.Free(/); Threshold value: 0; Actual value: 29226643456; instance THIS_IS_INSTANCE)",
   "tags": null,
   "parameters": [
      {
         "name": "dciName",
         "value": "FileSystem.Free(/)"
      },
      {
         "name": "dciDescription",
         "value": "Free space on file system /"
      },
      {
         "name": "thresholdValue",
         "value": "0"
      },
      {
         "name": "currentValue",
         "value": "29226643456"
      },
      {
         "name": "dciId",
         "value": "0x000011A0"
      },
      {
         "name": "instance",
         "value": "THIS_IS_INSTANCE"
      },
      {
         "name": "isRepeatedEvent",
         "value": "0"
      },
      {
         "name": "dciValue",
         "value": "29226643456"
      }
   ]

For many events parameters have names and you can also use macros with event names, e.g.  %<instance> instead of %6