Is it something i need to be concerned about this internal waring .. please find the attach screen shot of my lem ....
The highlighted alert is providing you information about queued data on disk. The queued data is only 2.1M in size and it was unable to determine how many events were contained in it.
If there were actual disk problems, you would see them as "InternalWarning" alerts. They are generated when the disk space gets below a certain % of available disk, or when those queue files get very large, indicating there is a processing problem.
Everything looks good.
is it like 90 days ??/ or something it stores data in the LEM or can we configure it manually ??? or after sometime does it says like disk is full can you delete some ??
The LEM appliance's database is self-maintaining and stores as much as you have disk space allocated to the appliance. The database will fill and as it becomes There is a KB article that explains more: SolarWinds Knowledge Base :: How many days of live data will the LEM database store?