Business continuity for mission critical system
Storage (disk)
Static Data (files)
Dinamic Data (database)
Computation (CPU+RAM)
Operating System
Application software
Connettivity
Network
Storage fault tolerance
RAID 1 mirroring; capacity n/2
RAID 5 capacity n - 1
Storage backup
Continuous data protection (live data backup and revisioning)
Planned backup (complete and incremental)
Snapshot (like a hot image of the volume)
Storage disaster recovery
Reply on other site geographically far
Controller RAID hardware
Server OS
WinXP RAID 5 hack
Computation fault tolerance
Server battery
Virtualized resource pool
Server cluster (server farm) Active-Active; Active-Passive
Computation disaster recovery
Reply datacenter hardware on other site geographically far
Business continuity
High Availability
Load Balancing
Scalability
Network redundancy
Multiple network card and star with ring switch infrastructure connection with spanning tree
active
Redundant Internet Service Connectivity with two domain
national network domain with IP class 134.158.16.0
regional network with IP class 139.124.70.0