SYLLABUS

Security techniques for the management of data including disaster recovery plan and audit trail 12ATAR

PURPOSE

• a disaster can cripple a business therefore it is important that companies have a disaster recovery plan and an audit trail to restore operations as soon as possible

DISASTER RECOVERY PLAN

• is a set of steps to protect data in the event of a disaster
• usually it is in writing
• it is to minimise data loss
• it is to minimise down time
• it includes storing data off-site

RECOVERY PLAN 1 - HOT SITE

• this is a duplicate of the existing site in every way, servers, rooming, real time synchronisation so data is the same
• following a disaster, this new site would be up and running in a short time frame eg 2 hours
• advantage is it is ready to go and is the best recovery solution
• disadvantage is it is very expensive to setup
• example 'bank up and running in 2 hours after twin towers collapse"

RECOVERY PLAN 2 - WARM SITE

• this is a site that has computers set up, but not exact duplicates 
• following a disaster, this new site would be up and running in a longer time frame eg a week
• advantage is it is not as expensive as the hot site
• disadvantage is down time to get site operational

RECOVERY PLAN 3 - COLD SITE

• this is a site that is not configured with computers and other hardware, some may be more setup than others 
• advantage is it is much cheaper than the hot or warm site
• disadvantage is it is more down time. more time needed to get up and running

 AUDIT TRAIL

• is tracking how the data comes about
• the financial trail is different from the marketing trail when it comes to data
• audit trails provide how the data comes into, or leaves, the company

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