Filter machines only online for more than X days

[laurin1]

This might seem like a strange request, but is there a way to filter only machines that have a last seen date of less than X days ago (I know how to do this part), but also have been "online" for more than X days.

The issue is that we have machines that are offline most of the time, but come online periodically for very short periods (spare machines, for example), that we don't want to show up in a report.

[ufficioced]

I would like to filter also machines that are currently online (i.e. respond to ping), do you know if there is some way to filter in this way?
thanks

[laurin1]

I thought about using uptime, but concerned about accuracy. Our machines get restarted a lot - at least every Sunday (by an automated job). Still, that might work. I'll give that a shot.

[MikeMc]

Perhaps the Uptime column from the tblAssets table could be of use. The below sample lists assets that have been seen in the last 7 days and have a recorded uptime of 3 or more days.

Select Top 100000 tblAssets.AssetID, tblAssets.AssetName
From tblAssets
Inner Join tblAssetCustom on tblAssetCustom.AssetID = tblAssets.AssetID
Where tblAssetCustom.State = 1 AND tblAssets.Lastseen >= DATEADD(day,-7, GETDATE())
And (tblAssets.Uptime / 86400) >= 3