Backup Set Options • Options that are unavailable cannot be selected for demand backup. | |
Use Buffer | [View only.] • This takes the “Use Buffer” setting from the "Set Properties - Options tab (Windows database backup sets)". |
BLM (Infinite Generations) | [View only.] • This takes the “BLM (Infinite Generations)” setting from the "Set Properties - Options tab (Windows database backup sets)". |
Detailed log | Records all files that are backed up. |
PreScan | If checked, the backup set is flagged to scan all files in the backup set prior to backup to display an estimated completion time for the backup. |
Stop on errors | Sets an error limit, at which a backup will be stopped. Enter the maximum number of errors in the Stop on Errors box to the right. |
Start at | Leave this box blank to start the demand backup immediately. Enter a time, if you wish to delay starting the demand backup until the time specified. |
Local Storage | [View only.] • This takes the “Use Local Storage - Save” setting from the "Set Properties - Options tab (Windows database backup sets)". |
Cache | [View only.] • This takes the “Use Local Storage - Cache” setting from the "Set Properties - Options tab (Windows database backup sets)". |
Database backup policy (Windows database backup sets & VSS-aware Hyper-V backup sets) • The default selection depends on the Database Backup Policy selected for this backup set in the "Set Properties - Options tab (Windows database backup sets)". • Some options might not appear, depending on the backup set type and configuration. | |
Default Policy | Shows the configured Windows database backup policy for this set. |
Enforce Perform | Select if you want to specify what type of dump will be performed. The options available depend on the settings for this backup set. |
Full backup | This backup will perform a full dump of each database. |
Differential backup | Performs a differential backup unless another full backup is needed (*). • The database can be selected with or without the Backup Transaction Log option. |
Incremental backup | Performs an incremental backup unless another full dump is needed (*). • The database should be selected without the Backup Transaction Log option. (Even if selected, this option will be ignored if this backup policy is selected.) • The database’s Recovery Model must be: ‘full’ or ‘bulk_logged’. |
Do not truncate transaction log | [Incremental backup only] • [Default is off.] Select if you do not want DS-Client to truncate the Windows database transaction log. |
(*) A full dump is needed (other than first time) when: • a database has been backed up by another backup set (or manually from the SQL tools); • a database has been restored (either from another database or an earlier generation); • the database properties have been modified (recovery model switched to ‘simple’); • local storage cache is used for the backup set (This can occur for ‘Online’ backup sets with the option ‘Transmission cache on local storage’, but only when a generation must actually ‘pass through’ the local storage cache. If the connection to DS-System is down, then a full dump occurs and is written to the local storage cache. After that dump, DS-Client continues with the selected database backup policy.) • the DS-Client requires a Master generation (configured in the “MasterGenerations” value of the DS-Client Advanced Parameters - Setup Menu > Configuration > Advanced Tab). | |
E-Mail Scan Policy • This section appears only for Microsoft Exchange Server email message backup sets (DS-MLR) that use MAPI. Note: Functionality for discontinued backup sets might still work, even though they are no longer officially supported. | |
Default policy | • Shows the default policy configured for this backup set in the Backup Set Properties - Options tab. |
Enforce perform | This option allows you to over-ride the default configuration for this demand backup only. • Full scan: Performs a full scan of all items in the target folder. • Incremental scan: Assuming at least one previous backup with has been performed, DS-Client / DS-MLR will only retrieve the new or modified items from each folder. (It does not detect items that have been removed from a target folder.) |