We have small server room with 15 rack servers ATM, and we are planning to add 7U 10 blade enclosure.
One can hear the servers from the outside now (the doors are not too thick) but it is not bad, actually it is OK. But I have read that noise levels from blade are up to 90db and this is - I guess - few times more than what we have now. As we cannot afford to move to bigger place ATM and do not wan to move the servers to data centre I wonder if we can sort it out with decent amount of Noise Cancelling Foam and DIY afternoon.
Did anyone tried it before? Is 90db manageable anywhere outside the data centre at all? Do not want to buy computers just to learn that we have to move out.