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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