TLDR: Laser printer, no AC, high humidity.
I live in Singapore, the environment here is hot, humid, pretty much all the time.
I’m lucky to live in a house with a good breeze, so I tend to keep the windows open and all the rooms, and rarely turn air conditioning on. When I do it’s only for the room I’m in.
My servers and printer, are in a room with no air conditioning usually, this hasn’t been a problem historically. But I just got a brother laser printer, and one of those unpacking it I noticed it had a massive desiccation packet packed inside the printable area.
I wonder if people have had any issues in high humidity environments, with either their electronics, or a laser printer?
When I used to live in an area with a heavy ocean sea breeze, I had electronics that rusted from the inside from the high salt content. So I do wonder.
I have noticed paper I leave in a high humidity environment tends to become less rigid over time.
Most important servers go on top (we can run relatively fine without one of them, but with reduced capacity, as long as the cluster primaries work) and run the AC for longer during mobilization (a full day and overnight) Also, this utility hatch had a broken gasket and loads of bolts missing. This has now been fixed to make sure the container is reasonably air tight.
I’ve also considered some sort of heater in the bottom of the rack to prevent condensation during the initial AC cycle.
If you had been able to get the humidity down, before applying power, do you think the servers would have been okay?
Maybe. It could be that the damage was already done, as the container spent 6 month being slow shipped around the world. That utility hatch was basically venting in sea breeze continuously during transit.