Monitor Azure VM Linux Mount Point Availablity

parekhravik 

This will need some work, but its a place to start from, its from a much larger query I did ages ago (so I hope its ok), it checks what drives you had mounted last week compared to this week  

InsightsMetrics
| where TimeGenerated between (startofweek(now(),-1) .. endofweek(now(),-1) )
| where Tags has "mountid" 
| parse Tags with * '":' diskLetter ':' *
| where strlen( diskLetter) == 2
| summarize setLastWeek=make_set(diskLetter) by Computer
|join 
(
    InsightsMetrics
    | where TimeGenerated between (startofweek(now()) .. endofweek(now()) )
    //| summarize min(TimeGenerated), max(TimeGenerated)
    | where Tags has "mountid" 
    | parse Tags with * '":' diskLetter ':' *
    | where strlen( diskLetter) == 2
    | summarize setThisWeek=make_set(diskLetter) by Computer
) on Computer
// now check is the two sets are the same, if not show 
| where tostring(setLastWeek) != tostring(setThisWeek)