Caché High Availability Guide - InterSystems Documentation

Managing Caché Online Backups2.5.4 Error Handling for BackupsIn the event of an error during backup, the backup utility allows you to retry the device onwhich the error occurred. Alternatively, the backup can be aborted.On stand-alone systems (those not clustered), if you abort a backup regardless of the type,the next backup must be a full backup. This full backup on a stand-alone system does notblock access to the database.If a backup encounters any I/O errors, the backup aborts and logs a system error in thecconsole.log file, viewable by the Backup utility, the SYSLOG character-based utility or anytext file viewer. The log file allows you to see quickly where the problem occurred so thatyou can fix it.2.5.5 Backing Up Selected Globals and RoutinesSometimes you may want to back up only some of the globals or routines in a database. Inthese cases, use the Caché global and routine backup utilities. You benefit from using theCaché global and routine backup utilities in these cases:• Restoring selectively — If you have backed up your globals using the Export option fromthe [Home] > [Globals] page of the System Management Portal, you can use the Importoption to restore only the globals you require.• Restoring a database after extensive repairs — When your Caché database suffersdegradation, it does not use the space as efficiently as it could; some unused blocks arenot marked as being available, and pointers become overly indirect. If you used the Exportoption to back up your globals before you had the problem, you can recreate the database,and then load in the globals using the Import option.• You can use the Export and Import options from the [Home] > [Routines] page of theSystem Management Portal to back up and restore individual routines.Use the Caché Export utility when you want to back up source code (.MAC, .INC, and/or.INT extensions), or both source and object code (.OBJ extension). Use the Caché Importutility to restore these files.Since you can select from several formats for the routine Export file, you can use theCaché Export utility to export routines to other InterSystems database systems, includingDSM, DTM, ISM, and MSM.Routines and globals are backed up into standard format files. These files are referred to asRSA (routine save) and GSA (global save) files.Caché High Availability Guide 29