Network Management

Node Details shows different last boot than Asset Inventory with WMI polling

Last Boot Time on Node Details may show a different value than Last Boot Time on Asset Inventory when WMI polling is used.

First published date

11/9/2018 8:06 PM

Last published date

12/23/2025 12:44 AM

Overview

The Last Boot Time is on both the Node Details page and the Asset Inventory page. The Last Boot Time might show a different value on each page.
Note: Asset Inventory Polling only occurs once a day, so data displayed under the 'Asset Inventory' tabs should not be considered to the latest poll. We'd suggest using the resources on the Node, Interface, or Volumes details pages to see data from our most recent poll.

Product section

Orion Platform

Resolution

This applies to WMI polling.

For the Last Boot time on the Node Details page:

  • WMI query:  SELECT SystemUpTime FROM Win32_PerfFormattedData_PerfOS_System
  • When the returned number is below the current number, it is assumed that the node has been rebooted. This method also takes into account counter rollovers.
  • Stored in the NodeStatistics table. It is stored in local time of the node.

For the Last Boot time on the Asset Inventory page:

  • WMI query:   SELECT LastBootUpTime FROM Win32_OperatingSystem
  • Stored in the AssetInventory_ServerInformation table. It is stored in UTC time.

If the main poller and the APE are on different time zones, the time shown on the asset inventory may show a different time zone than the time on the Node Details.