On Thu, Oct 12, 2017 at 3:39 AM, Naslund, Steve <SNaslund@medline.com> wrote:
If the ambient temperature is higher is means the temperatures throughout the device would be higher and the temp at those points is what really matters. I would also be concerned because if they lose one of the a/c units what would the ambient temperature rise to? I would want them to tell me what the set point of the a/c actually is.
Bottom line 80 F input air is too hot in my opinion and apparently the equipment's opinion as well.
My quick thoughts on the matter: 1. Above all else, know what your DC provider states in their SLA/contract. 2. It's never a bad idea to try to be on the best possible personal terms with the DC manager(s), the better you get along the more they're inclined to share knowledge/issues and work with you on any concerns. 3. You can't infer faults or lack of redundancy from the running temperature - by way of example several facilities I know run at 25 degrees celsius but if a chilled water unit in a given data hall fails there's a number of DX units held in standby to take over. This is where point 2 comes in handy as knowing somebody on the ground they'll often be quite happy to run through failure scenarios with you and help make sure everybody is happy with the risk mitigation strategy. Out of idle curiosity - I'm curious as to if the equipment that is alarming is configurable or not? Reason I ask is I've heard users claiming environmental parameters were out of spec before, but then it turned out it was their own environmental monitoring they'd installed in the rack (using default parameters out of the box, not configured to match the facility SLA) that was complaining about a set point of 25... Cheers, Sam