See also: EMC VMAX – Build Location and Model Type
The following table lists the serial numbers associated with VMAX3(100K,200K&400K) and VMAX All Flash(250F,450F&850F) systems:
Code Level 5977 which is known as HYPERMAX OS supports VMAX3 and VMAX All Flash systems.
Are you sure about the 850F id? I have information it should be 980.
Thanks, I will check if it has been updated