4929400
Description
Mind Map by 10bsamme5316, updated more than 1 year ago
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Created by 10bsamme5316
about 8 years ago
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Backups
- Why are backups needed?
- Loss of records leads to
loss of contact with
customers.
- Loss of records means orders
not completed to the
customer's satisfaction.
- Customers will lose confidence
and go elsewhere.
- Most companies that lose their data
are out of business within months.
- To avoid permanent data loss.
- To ensure the integrity of stored data
e.g. backup sufficiently up to date.
- Loss of records leads to
loss of contact with
customers.
- Threats to ICT Systems
- Computer Hardware Failure.
- Deliberate / Accidental Damage.
- Theft / Hacking / Fire.
- Viruses.
- Software Bugs.
- Power Cuts.
- Software Failure.
- Computer Hardware Failure.
- Backup Strategies - Factors
- FREQUENCY OF BACKUP - How often
data changes affects how frequently
it needs to be backed up.
- VOLUME TO BACKUP - Whether all data will be backed up, or
only data that's changed since last backup. The volume
affects the time it takes to backup and medium to use.
- STORAGE MEDIUM - Choose suitable
medium, depending on volume of
data, expense and convenience.
- WHERE IT WILL BE STORED - Store in a
secure location away from main
system e.g. a fireproof safe or off-site.
- PERSONNEL RESPONSIBILITY - Someone in
charge of seeing backup is done. When away,
someone else needs to be designated.
- LOGGING BACKUPS - Keep log of
backups and any problems that arise.
Then address these problems.
- TESTING OF BACKUP DATA - Every so often,
load backup to test all data can be recovered
if need arises,
- FREQUENCY OF BACKUP - How often
data changes affects how frequently
it needs to be backed up.
- How long should you
keep backups for?
- Keep daily backups for a week.
- Keep weekly backups for a month.
- Keep monthly backups for a year.
- Keep daily backups for a week.
- Recovery Procedures
- 1. Ensure that computer system available. 2. Ensure that
up-to-date information available. 3. Ensure that alternative
accommodation for computer systems available. 4. Ensure
that staff will be available and know what their role is.
- CONSIDERATIONS - 1. Availability of computer system/HW. 2. Availability of programs/SW. 3. Availability of
staff. 4. Staff knowledge of procedures. 5. Availability of communications. 6. Testing of recovery procedures.
7. Availability of accommodation for computer systems.
- 1. Ensure that computer system available. 2. Ensure that
up-to-date information available. 3. Ensure that alternative
accommodation for computer systems available. 4. Ensure
that staff will be available and know what their role is.
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