When you request a backup, Tivoli® Storage Manager backs
up a file if certain requirements are met.
The following are the requirements that must be met for Tivoli Storage Manager to
back up a file.
- The selected management class contains a backup copy group.
- The file meets the serialization requirements that are defined
in the backup copy group. If the copy group serialization parameter
is static or shrstatic, and the
file changes during backup, the file is not backed up.
- The file meets the mode requirements that
are defined in the backup copy group. If the copy group mode parameter
is modified, the file must have changed since the
last backup. If the mode is absolute,
the file can be backed up even if it does not change.
- The file meets the frequency requirements that are defined in
the backup copy group. The specified minimum number of days since
the last backup must elapse before a file is backed up.
- The file is not excluded from backup by an exclude statement.
- The file is not excluded from backup by the operating system.
These excluded files can be found in registry subkey HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\BackupRestore\FilesNotToBackup.
Files that are part of the Windows system
state are eligible for backup only when the system state is backed
up. You can back up the system state only as a single entity because
of dependencies among the system state components. You cannot back
up or restore the files individually. For example, because C:\windows\system32\ntoskrnl.exe is
part of the Windows system
state, it is not backed up during an incremental or selective backup
of the C:\ drive.