The SYSTEM save sets discussed in this section work with these operating systems:
- Windows 2000
- Windows XP Professional
- Windows Server 2003 32 and 64 bit (with no VSS client license, or with VSS disabled)
The SYSTEM save sets includes the System State, System Files, and System DB.
Components of the SYSTEM STATE save set
As part of the SYSTEM STATE save set, NetWorker software backs up all Windows system state components except the SFP component. For information about how
NetWorker software treats the SFP component, see below.
Certain basic system state components are present with every Windows Server 2003, Windows XP Professional, or Windows 2000 installation. These components are present on every system, and are always part of the SYSTEM STATE save set. Table 1 lists these basic components and references to their backup and recovery procedures.
Table 1 SYSTEM STATE save set basic components
|SYSTEM STATE basic component
||Special backup and restore considerations|
|COM+ Database||To complete the backup and recovery operation of the COM+ database, ensure
that a valid temporary directory is set with the TEMP environment variable.
|Internet Information Server (IIS)||
The NetWorker software backs up IIS using its active metabase and restores backup
Note: If you perform a NetWorker recovery of the SYSTEM STATE or VSS SYSTEM BOOT
|Registry||In Windows Server 2003, Windows XP Professional, and Windows 2000, the registry
is a component of the system state. The registry can be backed up and restored only
as part of the SYSTEM or VSS SYSTEM save set to which it belongs. In the NetWorker
User program, the registry is a component of the SYSTEM STATE or VSS SYSTEM
BOOT save set. The NetWorker software automatically backs up or recovers the
registry as well as this save set. The registry is always saved and restored at level full.
Optional components of the SYSTEM STATE save set
In Windows 2000, Windows XP Professional, and Windows Server 2003, the SYSTEM STATE save set can include optional components, under these conditions:
- The optional components have been installed.
- The components’ corresponding services have been started.
These SYSTEM STATE optional components and their procedures for backup and recovery are listed in Table 2.
Table 2 SYSTEM STATE save set optional components
|SYSTEM STATE optional component
||Special backup and restore considerations
|Active Directory (AD)||
Active Directory (AD) is the Windows directory service and the foundation for the
The NetWorker software automatically backs up AD as a component of the SYSTEM
|Cluster Server||Not discussed for now|
|File Replication Service (FRS, also called
Components of the SYSTEM FILES save set
In Windows 2000, Windows XP Professional, and Windows Server 2003, the SFP feature prevents overwriting of certain essential system files (most commonly,dynamic link libraries and executables) by application installations. These files are called system-protected files. By preventing the replacement of these critical system files, file version mismatches are avoided that might otherwise cause application errors or system crashes. The SFP component includes SFP catalog files, system protected files, and system boot files (ntldr, ntdetect.com, and boot.ini). The SYSTEM FILES save set also includes the IA-64 EFI FAT partition component.
The system state must always be backed up at level full (partial backups are not allowed). However, the SFP component typically consists of more than 200 MB of data in over 1,500 files. If the SFP component were part of the NetWorker SYSTEM STATE save set, backing up or recovering the system state would be extremely.
resource-intensive. Therefore, NetWorker software backs up the SFP component in its own save set called SYSTEM FILES.
System File Protection (SFP)
For a full backup operation, specifying the SYSTEM FILES save set or save set All results in a full backup of the system-protected files. However, on an incremental or level 1-9 backup of the SYSTEM FILES save set or save set All, if any system-protected files have changed since the specified time, all system-protected files are backed up. If no system-protected files have changed, none will be backed up and no corresponding save set entry is made in the server's media index.
To ensure a proper recovery of the Windows Server 2003 (with no VSS license, or VSS disabled), Windows XP Professional, or Windows 2000 state of the computer, it is safest to restore all three SYSTEM save sets in the same operation. In the NetWorker User program, if only the SYSTEM FILES or SYSTEM STATE save set is marked for recovery, a dialog box displays a warning that both of these save sets should be recovered together. No such warning is provided for recoveries performed at the command-prompt.
Not all SFP files necessarily exist on a computer at any given time. Additional SFP files are sometimes installed automatically when a new Windows system component is installed. When this occurs, the new files have a creation date that corresponds to the system component installation date. But the files have a modification date that corresponds to the creation date of the Windows distribution. The modification date of a new SFP file is usually the same modification date of the already existing SFP files.When a backup of save set All or the SYSTEM FILES save set detects new SFP files, it checks for the more recent of the file creation and file modification dates. If the more recent date is after the as of time, NetWorker software backs up all of the system-protected files.
Components of the SYSTEM DB save set
The NetWorker SYSTEM DB save set is used to back up the Windows Server 2003 32 and 64 bit, Windows XP Professional, or Windows 2000 system databases that are installed and started. See for more information the NetWorker 7.4 Service Pack 1 Multiplatform Version Administration Guide. This guide lists the system databases that are present by default and references to their backup and recovery procedures.
Components of the ASR save set
The ASR (Automated System Recovery) save set contains all the information necessary to return the failed computer to its condition at the time of the last ASR backup, including:
- Automated reinstallation of Windows
- Restoration of the system configuration
- Recovery of one or more disk volumes
The ASR save set can be backed up by itself, or as a component of save set All. Like other SYSTEM save sets, ASR is automatically backed up at level full.