GB/T 36092-2018Information technology—Backup storage—Requirements of data backup technology application (English PDF)

1 Scope

This Standard specifies the application requirements of data backup and recovery in information processing equipment.

This Standard is applicable to data protection measures that are adopted to cope with data loss and data destruction in the information technology field.

NOTE: this Standard does not involve the continuity of business and its content.

2 Normative References

The following documents are indispensable to the application of this Standard. In terms of references with a specified date, only versions with a specified date are applicable to this Standard. The latest version (including all the modifications) of references without a specified date is applicable to this Standard.

GB/T 20988-2007 Information Security Technology - Disaster Recovery Specifications for Information Systems

3 Terms, Definitions and Abbreviations

4 Backup Technology

5 Data Backup Application Requirements

a) Data backup shall support backup to locality, local system, nonlocal system and non-locality. It shall maintain backup of one or more data copies. When there are multiple backup data copies, data consistency of multiple backup data copies shall be maintained;

b) When the backup process is completed, under the circumstance of production system failure, power failure and breakdown, backup data copies shall be accessed under the support of software or system;

c) Other than the initialization phase, in the backup process and after backup is completed, data copies that are stored on the backup object end shall be data of the backup object at a certain historical moment;

d) Software or system can manage the backup process in accordance with log or other technology. When the backup process is accidentally interrupted, data re-synchronization shall be implemented;

e) The synchronization mode of the backup data copy and backup object shall support real-time synchronization or asynchronous synchronization;

f) In the application of system which parallelly executes multiple backup tasks, if the writing of multiple backup objects is correlated, the consistency of writing sequence of the backup data copies with the backup object shall be guaranteed in the backup process;

g) The backup and recovery of software or system's own backup data log database shall be supported.

Appendix A (Informative) Data Backup Deployment

In the specific deployment of backup application, in accordance with the demands in different aspects, such as cost and data security, there are different deployment forms (please refer to Table A.1 for various deployment forms) as follows.

a) Type-1 deployment form. merely one backup is established in the local system in the locality to cope with man-made data destruction or single storage medium failure; it can implement quick recovery;

b) Type-2 deployment form. merely one backup is established in the non-local system in the locality; it can cope with system-level software or hardware failure; it can implement relatively quick recovery;

c) Type-3 deployment form. merely one backup is established in the non-local system; it can cope with site-level or regional failure, such as power failure and flood, etc.;

d) Type-4 deployment form. one backup is established respectively in two local systems; it can implement quick recovery and cope with system-level software or hardware failure;

e) Type-5 deployment form. one backup is established respectively in the local system and non-local system; it can implement quick recovery and cope with site-level or regional failure;

f) Type-6 deployment form. one backup is established in the locality and one backup is established respectively in two non-local data centers; it can implement quick recovery and cope with site-level or regional failure. […]