Dispela first stage em lon identyim ol kritical bisnis funcsion (usim wanpela proses ol kolim ‘Business Impact Analysis’) na ol risk asociatad waintaim ol operasion blon em – na developim ol apropriate risk reducsion mesas lon ensurim continuiti blon operasion igo lon ol event blon ol inciden wei em gen disruptim dispela operasions. Ol key considerasions lon taim blon developim wanpela bisnis continuiti plan gen includim:
- Denial blon acess
- Lus blon key staff
- Lus blon key suplia
- Lus blon key systim
Dispela Business Impact Analysis bai identifyim ol ‘Recovery Time Objective’ (lon wanem kain taim na lon wanem level dispela bisnis proses em ol mas restorim lon behain lon disrupsion) wei em gen avoidim ol unaceptabal consequensis.
IT systim em ol mas designim lon kamap resilien na nid lon kamap availabal lon matchim ol nids blon bisnis na dispela Recovery Time Objective. Olsem sapose wanpela funcsion em availabal 24 x 7, dispela systim supotim dispela funcsion mas reflectim dispela nid. Lon exampal, wanpela kompani websit wei cusoma gen placim ol orda em nid lon advilabal 24 x 7 na needim ool apropriat resiliens. Ol arapela systim, tasol, gen toleratim non-availabiliti blon sampela hour bipo dispela stat lon afectim ol tamblon line o lekal o finansal responsibilitis. Sampela systim em bai importent tru lon ol, ceten taim na ino ol arapela (lon exampal ol peirol systim).
IT systim (sertva na telekom infrastructa) lon ol bigpela organisasion em ol save housim insait lon ol datasenta. Datasenta em ol save replicatim wei lon event blon wanpela catastropik inciden insait lon wanpela datasenta, systim bai automatikali switchim (‘failover’) igo lon sekond site (disaster recovery). Datasenta em ol nid lon locatim sufisentli long wei lon narapela wei tupela inonap afectad lon wanpela singkle inciden. Failova testin em ol mas performim lon ol regula basis, lon ol kritical systim na sapose em practikal igo lon dispela whol datasenta.
Systim em ol nidd lon bakim up lon ensurim againstim ol data lus o korupsion. Dispela frequenci blon bakup em ol determinim lon ‘Recovery Point Objective’ – wei ol definim olsem wanpela maximim tolarabal period lon wei ol data gen go lus lon wanpela IT servis becos lon sampela ol majo inciden. Dispela Recovery Point Objective save givim systim architek wanpela taim limit lon wok lon em. Kain olsem, sapose em set uyp lon four-pela hour, lon practis offsite bakup mas continuosli maintainim – wanpela daili offsite bakup lon tape em ino sufisen.
Lon ol liklik organisasion ino save usim datasenta servis, bakup em ol mas storim lon offsite na insait lon wanpela fireproof safe. Retension period lon ol bakup em ol save determinim lon ol nids blon dispela bisnis, o lon sampela situasion thru lon legislasion o law.
Ol checks ol nid lon performim wei ol bakup gen run korectli na ol sampal bakup ol gen restorim lon ol regula basis lon ensurim olsem data em redabal.