GHT: Glass House Technologies
GHT service / Data center

Data-center moves and decommissioning

Move the services, retire the equipment, keep the records

Services map to racks, ports, power, and owners; then cutover, validation, rollback, equipment release, media handling, removal, and final record updates run in sequence.

What you should have at closeoutA time-stamped cutover and acceptance record, matched assets and ports, and documented disposition for every released item.
References4 reviewed
Last updated2026-08-20
Overview

What Data-center moves and decommissioning includes

A migration plan connects logical services to physical ports, cables, power feeds, racks and owners. The sequence should include prerequisites, freeze points, acceptance tests, rollback criteria and escalation roles.

Decommissioning is not bulk removal. Equipment and media require positive identification, authorization and disposition. Data sanitization method and evidence are selected by the asset owner’s information policy and current guidance.

Question to answer before designWhich dependencies must move together, what proves the service is restored, and who authorizes the disposition of each retired asset?
Common situations

This service may fit when:

  • A site, room, cage or platform is closing
  • Equipment must move during a limited outage
  • Assets and cables cannot be matched to current services
  • Retired media needs controlled sanitization or destruction
System components

What the system includes

A complete scope covers each part below and the connections between them.

01

Source state

Services, assets, links and data before the change

02

Migration wave

Sequenced dependency group with owners and timing

03

Target state

Expected ports, services and acceptance observations

04

Disposition path

Reuse, return, sanitize, recycle or authorized destruction

Project record

How site information becomes a tested project

A complete project record connects the conditions found on site, the design decisions made from them, and the tests and closeout documents delivered afterward.

Site information

What we confirm before design

  • Service, application and physical dependency map
  • Asset, serial, rack, port and ownership inventory
  • Target-state capacity and configuration readiness
Design decisions

What those findings determine

  • Cutover method: Use dependency coupling, available duplication and outage tolerance.
  • Rollback: Define a time boundary and observable trigger for rollback.
  • Removal: Require asset-owner release before physical removal.
Closeout records

What you should receive

  • Migration/decommission runbook
  • Asset, port and cable reconciliation
  • Time-stamped change and acceptance log

The exact inputs, decisions, and acceptance records depend on the site and signed scope.

Project stagesSurvey through closeoutView details
Project stages

How the work moves from survey to closeout

Each stage should produce the records and test results needed before the next stage begins.

  1. 01

    Discover dependencies

    Map services to assets, ports, links, power, owners, vendors and change restrictions.

    EvidenceDependency matrix, asset/port inventory and unknowns log
  2. 02

    Plan waves and rollback

    Group changes, define prerequisites, acceptance tests, stop criteria and recovery paths.

    EvidenceRunbook, responsibility chart and approved rollback criteria
  3. 03

    Execute and validate

    Perform each authorized wave, observe services and record deviations before proceeding.

    EvidenceTime-stamped change log and service acceptance results
  4. 04

    Decommission and reconcile

    Remove only released assets, control media disposition and restore the space.

    EvidenceDisposition/chain record, sanitization evidence and final inventory
Design choicesCompare the available approachesView details
Options

How to choose the right approach

The right choice depends on the site, application, operating risk, and acceptance requirements. More equipment does not automatically improve the system.

FactorTypical approachMore demanding conditionsWhat determines the choice
Cutover methodTypical approach: Single controlled windowMore demanding conditions: Phased waves with parallel operationWhat determines the choice: Use dependency coupling, available duplication and outage tolerance.
RollbackTypical approach: Restore original patching/configurationMore demanding conditions: Fail back to a maintained parallel serviceWhat determines the choice: Define a time boundary and observable trigger for rollback.
RemovalTypical approach: Released patching and non-data assetsMore demanding conditions: Full rack/cage decommission with restorationWhat determines the choice: Require asset-owner release before physical removal.
Media treatmentTypical approach: Reuse after policy-approved sanitizationMore demanding conditions: Purge or destroy based on media and data sensitivityWhat determines the choice: Asset owner selects method; keep verification and chain evidence.
Before design

What we need to know

  • Service, application and physical dependency map
  • Asset, serial, rack, port and ownership inventory
  • Target-state capacity and configuration readiness
  • Change window, acceptance and rollback thresholds
  • Data classification and disposition policy
At closeout

What you should receive

  • Migration/decommission runbook
  • Asset, port and cable reconciliation
  • Time-stamped change and acceptance log
  • Exception and rollback record
  • Disposition, sanitization and space-restoration evidence
Best fit

When this service makes sense

  • Data-center exit or consolidation
  • Row, cage or network refresh
  • Equipment relocation between facilities
  • Documented removal after a completed service migration
Before we commit

What we verify first

  • Unknown shared dependencies
  • Vendor, carrier and facility change approvals
  • Live-service and rollback timing
  • Data handling, chain of custody and authorized disposal
Site contextSee where this work is usedView details
Where it is used

How site conditions change the design

Occupancy, operating hours, user activity, regulation, weather, construction, and access can change the design.

Common questions

What people usually ask

What is the difference between migration acceptance and project completion?

Migration acceptance confirms the agreed services and dependencies work in the target state. Completion also reconciles records, exceptions, assets, removed infrastructure and owner handoff.

Who decides how drives or other media are sanitized?

The asset and data owner should select the method from applicable policy and current guidance. The project then records the authorized method, execution and verification evidence.

When should cabling be removed?

Only after the associated service and asset are positively identified, released by the owner and checked for shared or hidden dependencies.

Standards and referencesReview the source materialView details