AS400 Facilities Cutover Readiness Checklist
A facilities-level checklist for AS400 and IBM Power cutovers covering room readiness before install.
Facilities Can Delay A Good Hardware Plan
An IBM Power refresh can be technically sound and still stall because the room is not ready. The deeper intent step after checking AS400 power requirements is assigning facilities sign-off before the cutover date is committed.
This matters most when an older AS/400 or iSeries environment is being replaced with a configuration that changes the room requirements.
- Rack depth
- Power supply behavior
- UPS load
- Adapter cabling
- Storage
- Service clearance
Confirm The Final Configuration
Facilities review should use the final quote, not a marketing model page. If the final configuration changes after review, the facilities checklist should be repeated. That prevents a last-minute surprise where the server fits the workload but not the room.
- Installed processor
- Memory
- Storage drawers
- Tape devices
- Network adapters
- HMC
- Rack kit
- Power supply configuration
Power And UPS Sign-Off
Power review should identify the electrical and shutdown assumptions before hardware arrives. Redundant power supplies should map to meaningful power separation, not just two cords plugged into the same weak path.
UPS runtime should be tested against the actual shutdown or failover procedure. Rated runtime is not the same as verified operational readiness.
- Circuit capacity
- Receptacle type
- Redundant feed design
- PDU load
- UPS capacity
- Expected runtime
- Shutdown or failover procedure
Rack And Console Readiness
The rack plan should confirm serviceability before the equipment is scheduled. Cooling review should consider heat load and airflow, especially when storage or tape hardware is being added.
Console and HMC access should be checked before cutover. A server that is physically installed but hard to manage is not ready.
- Depth
- Rails
- Weight rating
- Cable path
- Rear clearance
- Front access
- Floor loading
- Serviceability
Cutover Readiness Sign-Off
The final readiness review should include everyone who owns a cutover risk. That sign-off does not make the project larger. It prevents the avoidable facilities issue from becoming the reason the project misses its window.
- IT
- Facilities
- Reseller or installer
- Business owner
- Room readiness
- Hardware readiness
- Migration readiness
- Operational fallback
Frequently Asked Questions
Who should sign off on AS400 facilities readiness?
At minimum, the people who own the room and workload should sign off.
- IT
- Facilities or data center staff
- Installer or reseller
- Workload owner
- Rack
- Power
- Cooling
- Cabling
- Console access
- Cutover timing
Should facilities readiness be checked before or after the quote?
Check it after the final configuration is known but before hardware ships or the cutover window is committed. A generic model estimate is not enough for facilities sign-off.
Related Resources
Sources
Product catalog pages tied to this Facilities topic.
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