In information technology, a backup, or the process of backing up, refers to the copying and archiving of computer data so it may be used to restore the original after a data loss event.
In InterSystems Data Platform backup means procedures for backing up data in database files and all the related procedures which assure that no any application data is being lost during backup and recovery.
The goal of this writing was to illustrate how to restore backup before the patch would be applied. The alert notes that:
The risk can be avoided by applying journals from the beginning of the journal file that was switched to at the start of the backup, rather than accepting the default of starting from the journal marker position.
Having non-patched Caché 2015.1.4, I ran sample database backup and restore just to get where I should answer "No". Collecting journal info from the backup log:
By update