What is running on my server every night? My data disk queue is high every night at about 1:00 AM UTC. I did sql profiler trace and found that there are many queries running at the same time similar to these:



Can someone tell me what is going on there and how to stop or to control this?
Thanks in advance.

Version: SQL-Server 2014

EDIT:
I turned off the network, same issue. So, there is something inside SQL server.
From your profiler trace you should be able to see the Login and Host that the queries are coming from. I would then speak to your operations and/or development team to identify the application and function of the queries (or they should at least be able to point you in the direction of where you need to go/who you need to speak to).

Once you have that information you can see if the queries can be tuned in order to reduce the pressure on your disks.