the.com/disaster recovery
the plan you write hoping never to read again.
means a documented strategy for restoring systems and data after a catastrophic failure, from fire to ransomware.
from emerged in 1970s IT departments after banks realized a burned data center could kill the business faster than the fire itself; formalized through the 1980s as mainframes became irreplaceable.
rto vs rpoone measures downtime, the other lost data
first drillsbanks ran them after 1970s computer room fires
3-2-1 rulethree copies, two media, one offsite
cloud eraturned recovery from days into minutes