# Meaning of "MONITOR" in Histoy

**URL:** <https://forum.opennebula.io/t/meaning-of-monitor-in-histoy/9734>\
**Category:** Installation & Configuration\
**Created:** [July 23, 2021, 11:08am UTC](https://forum.opennebula.io/t/meaning-of-monitor-in-histoy/9734 "2021-07-23T11:08:04Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![alfeijoo](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.opennebula.io/alfeijoo/32/8586_2.png) [@alfeijoo](https://forum.opennebula.io/u/alfeijoo)\
**Post date:** [July 23, 2021, 11:08am UTC](https://forum.opennebula.io/t/meaning-of-monitor-in-histoy/9734/1 "2021-07-23T11:08:04Z")

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Hi.

Im doing a script that give me the info when a VM was running (but not counting when it has been poweroff"

In the “VIRTUAL MACHINE HISTORY” i found an state that I cant understand, for example:

```auto
VIRTUAL MACHINE HISTORY                                                         
SEQ UID REQ HOST ACTION DS START TIME PROLOG
  0 201 9744 NODE poweroff 0 02/04 23:29:07 0d 00h25m 0h00m15s
  1 201 2384 NODE nic-attach 0 02/04 23:54:48 3d 20h39m 0h00m00s
  2 201 2160 NODE nic-attach 0 02/08 20:34:44 0d 00h01m 0h00m00s
  3 201 592 NODE poweroff 0 02/08 20:36:19 0d 20h22m 0h00m00s
  4 - - NODE monitor 0 02/09 17:17:02 0d 00h19m 0h00m00s
  5 201 1440 NODE poweroff-h 0 02/09 17:56:57 0d 16h22m 0h00m00s
  6 - - NODE monitor 0 02/10 10:31:28 25d 11h58m 0h00m00s
  7 201 4848 NODE nic-attach 0 03/07 22:30:31 100d 03h48m 0h00m00s
  8 201 7488 NODE nic-detach 0 06/16 03:18:52 0d 07h28m 0h00m00s
  9 - - NODE monitor 0 06/16 10:47:16 0d 00h00m 0h00m00s
 10 201 8432 NODE nic-attach 0 06/16 10:48:30 0d 13h05m 0h00m00s
 11 - - NODE none 0 06/16 23:53:32 36d 13h07m 0h00m00s

```

There are any info about the ACTION “monitor” or whats the meaning? is running the machine?

Thanks in advance.

pd: there are any way to find the time that the VM was running? (just running, not poweroff)

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<div class="post-metadata">

**Author:** ![ruben](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.opennebula.io/ruben/32/19_2.png) [@ruben](https://forum.opennebula.io/u/ruben)\
**Post date:** [July 23, 2021, 6:27pm UTC](https://forum.opennebula.io/t/meaning-of-monitor-in-histoy/9734/2 "2021-07-23T18:27:30Z")

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This means that the VM changed state because the information sent by the monitor probes. For example, I think that the monitor in your example means that the VM in oned is poweroff but the monitor send an update information with that VM in state running.

You can use the STIME and ETIME attributes in the records to get that information.

The showback tool useful as it accounts for RUNNING periods… [Showback — OpenNebula 6.0.3 documentation](https://docs.opennebula.io/6.0/management_and_operations/users_groups_management/showback.html)