7. Backup and Disaster Recovery Procedures

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Last updated: May 31, 2023 by Former user (Deleted)
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Backup and disaster recovery procedures are recommended tasks to be carried out at a regular basis to avoid performance degradation.

Complete system backups to an external disk should be performed at regular time intervals, and preferably at times when the traffic load is low, for example at nights. What a reasonable time interval might be depends on how the system is configured, the amount of traffic etc, and may vary from installation to installation.

General Requirements

Regardless of the method chosen for the provisioning of backup and restore operations, there are requirements that must be met: 

  1. When an instance is restored from a backup image, the database backup must be older than the disk backup. The reason for this is to avoid database references to non-existing data.
  2. Temporary files must be excluded from the backups. This is to avoid inconsistent or partial data. 

Temporary Data

Temporary files can be identified by various identifiers that form the file names:

  • Temporary files – Prefixed with "TEMP."
  • DupUDR function temporary files – They are in a separate folder called "tmp". 
  • InterWorkFlow temporary files – Stored in a separate folder called "DR_TMP_DIR". 
  • Archiving function files – Stored in a separate folder called "pending". 


This chapter contains the following sections: