IT Asset Labelling: A Scheme That Survives Contact With Reality
Asset labelling is tedious, unglamorous, and the difference between a ten-minute fault and a two-hour one. This covers a scheme that survives contact with reality.
What labelling is actually for
Three uses, and they want different things.
Finding a specific machine physically. Someone is told to reboot a server and needs to identify it in a rack of similar boxes, possibly at a site they have never visited.
Tracing a cable to its other end without unplugging it.
Linking physical equipment to records — asset register, support contracts, monitoring.
A scheme that serves all three is better than three schemes.
A scheme that works
Four principles.
Include the location in the identifier. Site, rack, position. A label that says what a machine is without saying where it is solves only half the problem.
Keep it short enough to read and say. Someone will read it over a phone under pressure. Long identifiers get misread.
Avoid characters that look alike. Zero and letter O, one and letter I. This matters more than it sounds when someone is reading a label in a dim rack.
Do not encode things that change. A label containing the machine’s role or owner is wrong the first time either changes, and nobody relabels. Encode what is stable — location and a unique identifier — and keep the changeable information in records.
What to label
Every machine, front and rear. The rear one matters because that is where you are when cabling.
Both ends of every cable, with each label identifying the other end. A cable labelled only at one end is half-labelled.
Patch panel ports, mapped to outlet locations.
PDU outlets, so you know what you are switching off before you switch it off.
Rack positions themselves, if the rack is not numbered.
Labels that survive
Four practical points, because a label that falls off is worse than none — it suggests the equipment was labelled and is now unidentified.
Printed, not handwritten. Handwriting fades, smudges and is misread. A label printer pays for itself on the first rack. Our label media guide covers choosing stock.
The right adhesive for the surface. Warm equipment, textured plastic and cable jackets all defeat general-purpose adhesive.
Cable labels that wrap, with a flag or self-laminating overlap, rather than a sticker that peels from a curved surface.
Thermal transfer rather than direct thermal for anything in a warm rack, since direct thermal labels darken and become unreadable with heat. Our thermal media guide covers why direct thermal fades.
Keeping it current
The part that fails.
Labelling is done properly at installation and decays afterwards, because changes happen under time pressure and relabelling is the step that gets skipped.
Three habits.
Relabel as part of the change, not afterwards. A cable moved and not relabelled is wrong immediately.
Keep the label printer where the work happens, not in an office. Friction is why labelling does not get done.
Audit during other work. When someone is in a rack for another reason, checking labels costs minutes.
Our documentation guide covers keeping the records that labels point to current.
Why this matters more on a used estate
A practical point.
Equipment bought used arrives with someone else’s labels, or none. Relabelling on receipt, as part of acceptance, is far easier than doing it later in a live rack. Our acceptance testing guide covers the receiving process this belongs in.
And remove the previous owner’s labels. An asset tag from another organisation on your equipment causes confusion for years.
Frequently asked questions
What should an asset label include?
Location — site, rack, position — and a unique identifier, kept short enough to read aloud over a phone. Do not encode role or owner, because those change and nobody relabels.
Should cables be labelled at both ends?
Yes, with each label identifying the other end. A cable labelled at one end only is half-labelled and does not let you trace it without unplugging.
Why do labels fall off equipment?
Wrong adhesive for the surface. Warm equipment, textured plastic and cable jackets defeat general-purpose adhesive. Cable labels should wrap with a flag or self-laminating overlap rather than sticking to a curved surface.
Why do labels become unreadable in a rack?
Direct thermal labels darken and become unreadable with heat. Use thermal transfer for anything in a warm rack.
How do I stop labelling from decaying?
Relabel as part of the change rather than afterwards, keep the label printer where the work happens rather than in an office, and audit labels whenever someone is in a rack for another reason.
What about labels from a previous owner?
Remove them and relabel on receipt as part of acceptance. An asset tag from another organisation on your equipment causes confusion for years, and relabelling later in a live rack is much harder.
We supply the label printers and media for this. Tell us the environment and we will specify stock that survives it.
