For data availability we use: IPS/IDS. Patch Management. Redundancy on Hardware Power (Multiple
Power Supplies/UPS’/Generators), Disks (RAID), Traffic paths (Network Design), HVAC, Staff, HA (high
availability) and much more. SLA’s – How high uptime to we want (99.9%?) – (ROI) Threats: Malicious
attacks (DDOS, physical, system compromise, staff, wireless jamming). Application failures (errors
in the code). Component failure (hardware).