If you have a rack in colo or otherwise in a remote location here’s a couple of tips to help the guy at the other end you’ll end up ringing in a panic at 2am some day.
You can be really proud of the neat cabling in the rack but it means nothing to me if it’s all super tied down so you can’t trace a cable from server to switch. Is it really so hard once you’ve racked up your kit to fire up Excel and make a note of where everything got put and what it got plugged into? Some people even take pictures, the best people will tell you what U, what power, what switchport as well as the label on the server (you’d be surprised how many don’t even do the label part).
If you call up and don’t even know the location of your rack in the building then telling me to restart a 1U black dell server isn’t going to get us very far. I would begin with telling them what company you are with or rent the rack from followed by building, room name, rack number. Then we can get to the specifics..
If it’s been a long while since you even looked at the rack photos will help. Don’t bother with Cable management arms, they rarely make things easier.