Data centre decommissioning

Closing a room is treated as the cheap end of a project. The new site gets the design review, the budget and the attention. The old one gets a skip and a weekend.

Then the detail arrives. The carrier needs sixty days of notice on a cross-connect nobody can find the contract for. The landlord produces a make-good clause requiring the floor reinstated. Forty assets that finance is still depreciating cannot be accounted for. And the one drive somebody asks about eighteen months later has a collection docket against it rather than a serial number.

None of that is a lifting problem. It is a sequencing and records problem that happens to involve lifting, and it is the reason we treat a decommission as a controlled transition out of service rather than a clearance.

Four reasons a room comes out of service

Each one sets a different deadline, and the deadline is what decides the method.

01

The lease is ending

A fixed, immovable date, with make-good obligations attached to it and a landlord who inspects. Everything else on this list can slip. This one cannot, and it is the only driver where the penalty for being late is written into a contract.

02

Consolidation into fewer sites

Two rooms become one, or six become two. The complication is that the room being closed is usually still live while the work happens, so the decommission runs alongside services that cannot go down.

03

Workloads have gone to cloud or colocation

The applications left eighteen months ago and the hardware is still racked, still powered, still insured and still on a support contract. The room is costing money to keep empty.

04

Legacy kit is being retired

Not the whole room, just the half of it that is out of support. Partial decommissions are harder than full ones, because everything you touch sits next to something you must not.

You do not need a complete asset list to start

Nearly every quote request for this work opens with an apology about the inventory. It is out of date, it is in three spreadsheets, half the serials were never captured, and nobody is certain what is in the bottom of the third cabinet.

That is the normal condition of a room being closed, and it is not a reason to delay. If your register were accurate you would not need much of what we do, because building an accurate one is the first stage of the work rather than a precondition for it.

We can start from any of these: a floor and a handback date, a partial asset list, a set of photographs, or a walk-through with whoever knows the room best. What we produce from that is the serialised inventory everything else is measured against.

How a decommission runs, from first walk to final handback

Planned backwards from your handback date, because the long lead items are never the ones people expect.

Scope and sequence

The handback date, the lease obligations, what stays live and what comes out. We work backwards from the date to find the items with notice periods attached, because those decide the programme.

Audit and inventory

Every asset in scope identified, serialised and photographed in place, and your register reconciled against the room as it actually is. Discrepancies get raised here, while there is still time to resolve them.

Classify and decide

Each asset routed before anything is unplugged: returned to a lessor, retained for redeployment, identified as having resale value, or sent for certified destruction. Data-bearing devices flagged separately, including the network equipment people forget.

Disconnect services

Carrier circuits and cross-connects ceased to their own notice periods, power isolated and made safe by a registered electrician, cooling and monitoring withdrawn in a documented sequence.

Remove equipment

Powered down in the agreed order, disconnected, de-racked and packed, with dangerous goods separated as they come out rather than sorted at the far end.

Strip the infrastructure

Cabinets, containment, cabling, PDUs and supplementary plant. This is the part most quotes underestimate, because the structured cabling in a mature room is far more extensive than it looks from the aisle.

Make good

Penetrations patched, seismic restraints removed, floor and ceiling reinstated, and the space returned to the condition the lease defines rather than the condition that looks tidy.

Reconcile and hand over

Asset register updated, destruction certificates matched to serial numbers, exceptions closed, and one document pack covering the whole closure for your finance, audit and property teams.

What actually comes out of the room

The hardware is the obvious half. The other half is the infrastructure built around it over a decade, and it is usually the larger scope.

The active equipment

Everything with a serial number and a support contract.

Servers, storage arrays and chassis
Switching, routing, firewalls and load balancers
Out-of-band management, console servers and KVM
Tape libraries and backup appliances
Access control, CCTV and environmental monitoring

The infrastructure around it

Rarely on the asset register, always in the make-good clause.

Cabinets, cages and seismic restraint
Cable tray, basket, ladder and underfloor containment
Copper and fibre backbone, patching and all terminations
PDUs, busway, sub-boards and supplementary power
In-row cooling, condensate lines and leak detection
UPS, batteries and any generator interface

What stops a handback, and what it costs

Six failures we plan around, because each one has a long lead time and a short window to fix it.

01

The carrier notice period is missed

Cross-connects and circuits carry cease notice periods that can run to a couple of months. Miss it and you keep paying for service into a room you have already emptied, sometimes for a full further term.

02

Make-good is read for the first time at the end

The clause is in the lease the whole time. Discovered in the final fortnight it becomes a reinstatement job priced under duress, against a date that cannot move.

03

The register never gets corrected

Equipment that physically left the building keeps being depreciated, insured and covered by support. It is a quiet cost that runs for years, and nobody goes looking for it.

04

Something still in use gets switched off

A partial decommission in a live room, a device nobody could identify, and a service drops. This is why the inventory comes before the isolation, not after it.

05

The building fights back

Lift ratings, after-hours access, dock bookings, seismic restraint that is structurally fixed, and older buildings that need a hazardous materials survey before anything is cut. All of it survey work, none of it optional.

06

Certificates arrive by the pallet

A certificate of destruction against a consignment does not answer a question about one drive. Serial-level records have to be created at removal, because they cannot be reconstructed afterwards.

Chain of custody, and what we do not claim

From the moment a device leaves the rack it is sealed, recorded and signed at every handover until it reaches the recycler. That record is what makes a destruction certificate mean anything, because a certificate without a custody trail only proves that something was destroyed, not that your thing was.

What we do not do is worth stating plainly. We do not perform the data destruction ourselves, and we do not buy your equipment. A certified recycler performs the destruction and issues the certificates against the serial numbers we recorded, and we name them before the work starts. Where equipment has residual value we identify it and tell you, so you can sell or redeploy it, but the sale is yours rather than ours.

What happens to the hardware after it leaves the room is set out in full on our IT asset disposal page.

When you do not need us

If the room is a cupboard with a switch and a patch panel in it, take the switch out and call a recycler. Putting a project around that costs more than it saves.

If your landlord has waived make-good in writing and the equipment is all leased with the lessor running collection, most of what is on this page is already handled. Use their process.

This is worth buying when there is a date you cannot move, when the room is still partly live, when leased and owned hardware are mixed in the same cabinets, when the lease has a make-good clause nobody has priced, or when the certificates have to survive an audit two years from now.

Common questions

What is data centre decommissioning?

Taking a data hall, comms room or server room permanently out of service and handing the space back. It covers the audit, the disconnection of carrier services and power, the removal of equipment and the physical infrastructure around it, and the reinstatement of the room to whatever condition your lease or your landlord requires. The lifting is the visible part; the records and the lease obligations are where projects actually fail.

Do we need a complete asset list before you can start?

No, and if you had one you would probably not need us. Most rooms that are being closed have a register that drifted years ago. We can start from a floor, a date and a partial list, build the inventory as the first stage of the work, and reconcile your register against what is actually in the room rather than what the spreadsheet claims.

How long does a decommission take?

The removal is rarely the constraint. Carrier disconnection notice periods, landlord approvals, lift bookings and after-hours access windows are, and several of those have lead times measured in weeks. That is why the first thing we do is work backwards from your handback date rather than forwards from today.

What happens to the equipment you remove?

That depends on what it is. Leased hardware goes back to the lessor, equipment with residual value gets identified before it leaves the room rather than after, and the rest goes to a certified recycler who performs the data destruction and issues the certificates. We do not buy equipment and we do not destroy data ourselves. The detail is on our IT asset disposal page.

What is make-good, and is it in scope?

Make-good is the condition your lease says the space must be returned in, and it is usually written in terms most people have not read since they signed. It can mean stripping containment, patching penetrations, removing supplementary power and cooling, and reinstating the floor and ceiling. We price it as part of the job when the lease is provided, because discovering it at the end is how a decommission runs over.

Can you work in a room that is still live?

Usually yes, and often that is the only option, because the services being retired and the services staying up share the same room. It means a documented sequence, agreed isolation points, and work staged around what cannot go down. It is slower than an empty room and it is the normal condition on a consolidation.