A Hardware Checklist Before a Data Centre Relocation
Key Takeaway
Most data centre relocation failures do not happen on moving day but at the "first power-on after the move". Success depends on a complete pre-move inventory, offline backup validation, power and cooling budgeting, and item-by-item acceptance after the move.
Key Comparison
| Phase | Timing | Key Work |
|---|---|---|
| Planning | D-90 to D-60 | Form the project team, confirm the new site, risk assessment, budget |
| Inventory | D-60 to D-45 | Asset inventory, dependency map, power budgeting |
| Preparation | D-45 to D-30 | New server room ready, backup and restore validation, procurement of packing materials |
| Rehearsal | D-30 to D-14 | Shutdown / start-up rehearsal, Runbook finalised, assignment of roles |
| Freeze | D-14 to D-1 | Change freeze, final full backup, labelling and cabling diagrams completed |
| Moving Day | D-Day | Shut down, de-rack, transport, install, power up |
| Acceptance | D+0 to D+7 | Functional verification, performance baseline comparison, monitoring sign-off |
Practical Takeaways
- Server health checks (essential before the move): check the SMART status of all hard drives and SSDs and record power-on hours and error counts; confirm the RAID array is Optimal with no degradation and no rebuild in progress; check the controller battery / supercapacitor status (normally replaced every 3 to 5 years); confirm both power supply units are working; check fan speeds for abnormal noise; clean the air intakes and internal dust (the vibration of the move can loosen dust and create a short-circuit risk); record the BIOS / firmware versions; confirm BMC / iDRAC / iLO / XCC remote management is available and set the IP plan for the new site.
- Network equipment: export the complete configuration files of all switches, routers and firewalls and verify that they can be restored; record all physical connections and port mappings; confirm the stacking cables and optical modules (SFP / QSFP) are complete in model and quantity; confirm that the ISP leased line / broadband at the new site is in place and book the activation time.
- Power and cooling: calculate the kVA requirement per rack at the new site and confirm it does not exceed the distribution capacity; confirm that A / B dual power feeds are provided; check the age of the UPS batteries (normally 3 to 5 years); cooling demand ≈ total equipment power consumption; confirm the rack support feet and the floor load-bearing capacity (a fully loaded rack can reach 800kg or more); confirm that earthing, fire protection, access control and water-leak detection have been accepted.
- Backup and data protection (absolutely not to be omitted): complete a full backup before the move and actually run a restore test (a backup without a restore test is not a backup); keep an offline or immutable copy and transport it separately from the hardware; confirm the database transaction logs / archives are complete and record the LSN / point in time needed for restore; export the configuration files of critical VMs (.vmx / .ovf) rather than relying only on storage-layer replication; confirm that encryption keys have been securely backed up and can be retrieved at the new site.
- Labelling and cabling: cables must be labelled at both ends; colour-coding by purpose is recommended (production network, management network, storage network, power, KVM); use Visio / draw.io to draw cabling diagrams marking the port at each end of every cable; photograph the front and back of each rack before shutdown to record the cable routing; mark the U position of each device on the rack side posts; bag removed screws by device and label them.
- Packing and transport: use original packaging where possible; otherwise use reinforced cartons with pearl foam or foam padding; GPUs must be fitted with a graphics-card support bracket or removed and packed separately (transport vibration can easily damage the PCIe slot or PCB of a heavy card); hard drives should be removed and packed individually if they are removable; use anti-static bags and anti-static wrist straps; racks must be secured to pallets for transport and carried on air-ride trucks; for high-value equipment, consider fitting vibration / tilt recorders as evidence for insurance claims; take out full transport insurance with the sum insured calculated on replacement cost.
Tip: Hong Kong practical considerations: the main data centre districts in Hong Kong include Tseung Kwan O, Tsuen Wan, Fo Tan and Kwai Chung; when choosing, consider travel time from the office, power density (the kW available per rack), certifications (ISO 27001, PCI DSS) and security requirements. Goods lifts in commercial buildings and data centres usually need to be booked and are restricted to use outside office hours, so arrangements must be made one to two weeks in advance. Cooling and power capacity at a new site are often tighter than at the old one, so before the move always confirm in writing the kW available per rack and the design cooling temperature. If personal data is involved, the requirements of the Personal Data (Privacy) Ordinance on processing data across locations must be complied with.
