Modification History
Not Applicable
Unit Descriptor
Unit descriptor |
This unit defines the competency required to back-up and recover a database. The following units are linked and form an appropriate cluster:
No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication. |
Application of the Unit
Application of the unit |
Licensing/Regulatory Information
Refer to Unit Descriptor
Pre-Requisites
Prerequisite units |
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Employability Skills Information
Employability skills |
This unit contains employability skills. |
Elements and Performance Criteria Pre-Content
Elements describe the essential outcomes of a unit of competency. |
Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge section and the range statement. Assessment of performance is to be consistent with the evidence guide. |
Elements and Performance Criteria
ELEMENT |
PERFORMANCE CRITERIA |
1. Review database architecture |
1.1. Identify the architecture of a database file system and consequently, determine the most appropriate methods for back -up and recovery 1.2. Identify and examine risks and failure scenarios that are likely or possible |
2. Determine backup methods appropriate to database requirements |
2.1. Evaluate a range of back -up and restoration methods based on organisational and security standards and on the assessment of likely or possible failure scenarios 2.2. Complete full off-line back -ups according to organisational and security standards with minimal down time 2.3. Complete on-line file back -ups as determined by organisational and security standards and with minimal down time 2.4. Employ disk mirroring and redundant array of inexpensive disks (RAID) hard disk configurations to keep copies of files 2.5. Arrange off-site copies of back -up files |
3. Establish recovery points and disaster recovery procedures |
3.1. Determine database recovery points based on the back -up arrangements according to organisational guidelines 3.2. Test the restore process in order to ensure that the database can be restored to a given recovery point, with minimal down time 3.3. Complete the restoration of the database to the point of failure, without loss of committed transactions |
4. Create and deploy standby database |
4.1. Create or set up a standby database to meet organisational guidelines 4.2. Implement standby database to support critical business functions 4.3. Prepare documentation for standby database |
Required Skills and Knowledge
REQUIRED SKILLS AND KNOWLEDGE |
This section describes the skills and knowledge required for this unit. |
Required skills |
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Required knowledge |
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Evidence Guide
EVIDENCE GUIDE |
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The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package. |
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Overview of assessment |
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Critical aspects for assessment and evidence required to demonstrate competency in this unit |
Evidence of the following is essential:
To demonstrate competency in this unit the learner will require access to:
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Context of and specific resources for assessment |
Modern business practice requires organisations to implement efficient and effective methods of capturing, storing and retrieving business-critical information and data. The security and back-up of data repositories is of critical importance to most organisations. Organisational databases are no longer static repositories of information rather they are dynamic, interactive and frequently 'live'. Client and customer access to on-line information can occur at any time and a key capability of any database system is the successful back-up in an efficient and timely manner without disruption or loss of data. This unit addresses these three major elements in maintaining the integrity of an electronic database system - through creating periodic 'snapshot' back-ups of the open data files and then restoring them to working order. The breadth, depth and complexity of knowledge and skills in this competency would cover a broad range of varied activities or application in a wider variety of contexts most of which are complex and non-routine. Leadership and guidance would be involved when organising activities of self and others as well as contributing to technical solutions of a non-routine or contingency nature. Assessment of this unit of competency will usually include observation of the back-up and restore procedures, including the planning and the carrying out of the back-up and restore procedures, from determining what would be the best time to back up, to back up media, to the actual restore processes, including the use of particular tools or systems. Performance that involves evaluating and analysing current practices, to develop new criteria and procedures for performing current practices and for provision of some leadership and guidance to others, in the application of these skills. Assessment must ensure:
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Method of assessment |
The purpose of this unit is to define the standard of performance to be achieved in the workplace. In undertaking training and assessment activities related to this unit, consideration should be given to the implementation of appropriate diversity and accessibility practices in order to accommodate people who may have special needs. Additional guidance on these and related matters is provided in ICA05 Section 1.
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Guidance information for assessment |
Holistic assessment with other units relevant to the industry sector, workplace and job role is recommended, for example:
An individual demonstrating this competency would be able to:
Additionally, an individual demonstrating this competency would be able to:
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Range Statement
RANGE STATEMENT |
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The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included. |
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Architecture may include but is not limited to: |
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Database may include but are not limited to: |
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Standards may include: |
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Back -up may involve: |
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Organisational guidelines may include but are not limited to: |
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Documentation may follow: |
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Unit Sector(s)
Unit sector |
Support |
Co-requisite units
Co-requisite units |
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Competency field
Competency field |