what does clean disk signature mean in drive snapshot

To perform these checks, you may need to restore journal files to restore transactional integrity. To further validate that the application is working correctly on the restored database, you can also perform application-level checks. If you discover an integrity error in the restored database, immediately run an integrity check on the production database to verify the integrity of the production system. The converse, however, is not true: an integrity error detected on the restored copy of a database does not necessarily imply that there are integrity problems on the production database there could, for example, be errors in the backup media. The backup strategies described in this document preserve the physical structure of the database therefore, a clean integrity check of the restored copy implies that the integrity of the production database was sound at the time of the backup.

If such an event occurs, you need only restore the updates in the journal files. Provides a warm copy of the backup, substantially reducing the time required to restore the backup in the event of a disaster. Validates the physical integrity of the databases in the backup, avoiding the problem of false reporting of integrity errors when running integrity checks on volatile databases affected by ongoing updates. Validates the recoverability of the backup media. The best practice - to restore every backup of the production environment to an alternate server and then validate the integrity of the restored databases (see Verifying Structural Integrity in the “Introduction to Data Integrity” chapter of this guide) - provides the following advantages: Regardless of the backup strategies you use, it is critical to restore backups on a regular basis to validate your procedures. If you require more information to help you to develop a backup strategy tailored for your environment, or to review your current backup practices, contact the InterSystems Worldwide Response Center (WRC) Opens in a new tab. The chapter also contains details about the procedures used to perform these tasks using either native or third-party utilities.īackup strategies can differ depending upon your operating system, preferred backup utilities, disk configurations, and backup devices.

It discusses techniques for ensuring the integrity and recoverability of your backups, as well as suggested backup strategies. This chapter outlines the factors to consider when developing a solid plan for backing up your system.

What does clean disk signature mean in drive snapshot