NetBackup 3.2 Microsoft Windows User s Guide for Windows NT/95/98
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Cumulative Incremental Backup
When the NetBackup master server is configured to perform a cumulative 
incremental backup, NetBackup backs up all files that have changed since the 
last successful full backup. 
Cumulative incremental backups can be configured to use either the datetime 
stamp or the archive bit. If the datetime stamp is used, the cumulative 
incremental backup includes all files with a datetime stamp that are more recent 
than the last full backup. If the archive bit is used, the cumulative incremental 
backup includes all files that have their archive bit set. Archive bits are not 
cleared on cumulative incrementals. Refer to "General Property Sheet" on 
page 67 for more details on performing incremental backups with archive bits.
Differential Incremental Backup
When the NetBackup master server is configured to perform a differential 
incremental backup, NetBackup backs up all files that have changed since the 
last successful backup. 
Differential incremental backups can be configured to use either the datetime 
stamp or the archive bit. If the datetime stamp is used, the differential 
incremental backup includes all files with a datetime stamp that are more recent 
than the last backup, full or incremental. If the archive bit is used, the 
differential incremental backup includes all files that have their archive bit set. 
Archive bits are cleared on differential incrementals if the file is successfully 
backed up. Refer to "General Property Sheet" on page 67 for more details on 
performing incremental backups with archive bits.
True Image Backup
A True Image Backup takes place when the True Image Restore Information 
attribute has been set on the NetBackup master server. When this attribute is set, 
NetBackup collects additional information necessary to restore a folder to exactly 
what it was at the time of the full backup or incremental backup.
Only those backups, performed with the True Image Recovery Information 
attribute set on the NetBackup master server, can be used for the true image 
restore. For complete details, refer to the NetBackup System Administrator's Guide 
  UNIX or the NetBackup System Administrator's Guide   Windows NT Server. 
Introduction
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NetBackup 3.2 Microsoft Windows User s Guide for Windows NT/95/98






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