This mode is activated by clicking the corresponding tab over the main area of TNI's window or by pressing Ctrl + 5.
In this mode, you can choose an asset or a group of assets in the Network tree to see all the changes detected by TNI in their hardware, software and other parameters over the inventory period.
Every time an asset is scanned, TNI creates a snapshot of it and places it into the Storage alongside the previous snapshots. You can switch between various snapshots in the Viewer & reports mode using the date/time box next to the asset name:
You can manage snapshots from the corresponding section of the Edit tab. The auto-deletion policy can be set up in Options / Scanner. By default, TNI stores up to 10 snapshots per asset and removes the ones that are more than 90 days old (except for the oldest one).
In order to build the change log, TNI compares the existing snapshots. The change log is not saved anywhere and is always built on the fly from available snapshots.
Reading a change log
To build a log, select one or several assets or a group thereof in the Network tree.
TNI displays the result of snapshot comparison in the form of a nested list.
The timeline is divided into Intervals sorted from the most recent to the least recent. Each interval has a starting and ending date and time from adjacent snapshots. It also shows at a glance how many changes have been detected in this period of time.
Intervals contain Events grouped by object types.
Events represent elements that have been:
Added, Removed or Changed.
These are examples of Change log events:
Almost every piece of data within the snapshots is monitored for changes. Still, some kinds of changes in the actual devices may not be reflected in the log.
Log summary, searching, filtering and printing
Before generating a log, you can change the history depth value to view the changes from a certain number of snapshots, or select specific objects on the Sidebar to only view the changes for these objects. Decreasing the history depth value or selecting less objects can significantly increase the speed of generation if you store a large number of snapshots or if a large number of assets is selected.
After the log is generated, the Sidebar displays a full summary of logged changes.
Numbers on the right indicate how many elements of the corresponding type are present in the change log.
To hide all events of a certain type, untick its checkbox.
To only view events of a certain object type, hover your mouse cursor over the corresponding type and click the Hide the rest/Show all button on the right. Click it again to quickly reveal the full log.
Use the instant search to narrow the log down: press Ctrl + F or click the search bar at the top and enter a search term.
Click Printable reports next to the search bar to print the change log. The printable version will respect all active filters.