Removing things properly.
WHAT TO ESTABLISH FIRST
What the equipment does What depends on it Whether anything still uses it
WHY THAT MATTERS
Equipment is frequently left running because nobody is certain.
WHAT TO DO BEFORE REMOVAL
Confirm nothing depends on it Back up anything needed Destroy data, verifiably Remove it from monitoring and inventory Remove firewall rules and access permitting it
THAT LAST POINT
Rules for removed equipment accumulate and confuse later work.
WHAT TO DO ABOUT DATA DESTRUCTION
Wipe securely, or destroy the drives, according to sensitivity.
WHAT TO RECORD
What was destroyed, how, and by whom.
WHAT TO DO PHYSICALLY
Power down Remove cables, and remove them entirely rather than leaving them Remove the equipment Remove labels Fit blanking panels in the vacated units
WHY BLANKING PANELS
Otherwise the gap disrupts airflow.
WHAT TO UPDATE
Inventory, elevation diagram, documentation and monitoring.
WHAT TO DO WITH THE EQUIPMENT
Dispose of it responsibly, or resell once wiped.