NA ventilation

[Let'sgoflying!]

Server closet getting pretty hot, want to apply coolness.

Will be doing a temp controlled fan which can be mounted in wall or ceiling.

Question is, how to use this fan.
1. Blow 70F air from adjacent room onto equipment and provide a passive exhaust into the attic?
2. Make a duct from 70F adjacent room, then use the fan to exhaust closet air into attic?
3. 1 or 2 above but not attic. Blow it into the living space outside the closet.

The equipment is all up near the 10' ceiling. (Please do not suggest moving it, that won't be happening, it was the only way.)
Other complicated suggestions will be taken with interest, but the request is there to stick to the partial plan above and provide suggestions within those guidelines.
Thanks!

 

[SCCutler]

Good-sized vent fan, blowing up into attic;
Duct or grate from adjacent conditioned air.

 

[denverpilot]

Good-sized vent fan, blowing up into attic;
Duct or grate from adjacent conditioned air.

Yep. Neat rises. Help it go up. Attic will be unbearable after you do it. Allow new air to come in from elsewhere. Cross flow across the room if possible, preferably front to rear of the servers.

(Technically in a real server room you raise the floor, pump cold air in from underneath, and have a hot row behind and a cold row cold in front of the servers.)

Keep hot air moving the direction it wants to go. Caution that the top servers in the stack aren't overheating, especially without forced AC from below. If you can't push really cold air from anywhere try to get a side draft going across the room through the servers front to rear.

Have fun...