All the rest of the room is nice and cool.
The problem is air-flow, not cooling capacify.
The major heaters in the room are:
back of shark is maybe 10 degrees warmer
6h1 maybe 2 degrees
pdu maybe 3 degrees
stacks of F50s, maybe 5 degrees
backs of sp frames.10-15 degrees.
The hottest place is in the back corner by frame 1.
The floor fan was pulling floor air from the back corner (warmish) and blowing it in-front of the frames
The frames take in air from the front, so they were just re-heating the air.
I turned the fan so it blows cooler floor from in-front of the racks into the middle of the back corner
This is moving the trapped air and seems to help greatly behind the racks
I'll re-check in an hour or so and see how it affects that corner and the room as a whole.
Since most of the heat accumulates in the back corner
And heat rises, I may pop a ceiling tile in that corner.
This would provide a huge heat-sink for the room.
Since I didn't see any return-air vents in the room
I think a good amount of the cool air is being forced through the cable-holes in the raised floor.
Decreasing air-pressure by popping the ceiling tile would help this also.
Anyway, if it gets over 80 in there, I'll call security for assistance.
If I can orchestrate it being noticably cooler in there,
I'll let you know what the magic is so we can make sure it stays working.