Information Technology Center of Kabul(ITCK)
Kabul University
Prepared by: Humaira Saifi
[email protected]
Information Technology Center of Kabul(ITCK)
Kabul University
Prepared by: Humaira Saifi
By the end of this chapter you will understand : How system image backup work
System image backup structure
How to manage backup using group policy How volume shadow copy work
Msconfig
By the end of this chapter you will understand : How system image backup work
System image backup structure
How to manage backup using group policy How volume shadow copy work
How System Image Backups Work
System Image backups make a block-by-block backup of your
system volume to a .vhd file,
which must be stored on local storage, such as a second hard disk. the media automatically perform only an incremental backup. In
other words, only the portions of the hard disk that have changed are copied to the existing System Image backup.
Unlike file backups, only a single version of the System Image backup is
kept—multiple versions are not stored. The Backup And Restore tool does not provide a graphical tool for scheduling automatic System Image backups.
Instead, you should rely on automatic file backups and manually
create a System Image backup only after you have made significant changes to a computer’s configuration.
System Image backups make a block-by-block backup of your
system volume to a .vhd file,
which must be stored on local storage, such as a second hard disk. the media automatically perform only an incremental backup. In
other words, only the portions of the hard disk that have changed are copied to the existing System Image backup.
Unlike file backups, only a single version of the System Image backup is
kept—multiple versions are not stored. The Backup And Restore tool does not provide a graphical tool for scheduling automatic System Image backups.
Instead, you should rely on automatic file backups and manually
create a System Image backup only after you have made significant changes to a computer’s configuration.
Continue…
How to Start a System Image Backup from the Command Line
The simplest way to initiate a System Image backup is to follow the
prompts in the Backup And Restore Center.
For example, to initiate a System Image backup of the C drive to the L
drive, you can run the following command line from an elevated command prompt.
Wbadmin start backup –backupTarget:L: -include:C: -quiet
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How to Start a System Image Backup from the Command Line
The simplest way to initiate a System Image backup is to follow the
prompts in the Backup And Restore Center.
For example, to initiate a System Image backup of the C drive to the L
drive, you can run the following command line from an elevated command prompt.
Wbadmin start backup –backupTarget:L: -include:C: -quiet
System Image Backup Structure
System Image backups use a similar folder structure to file backups. When you create a System Image backup, Windows creates a
WindowsImageBackup folder in the root of the backup media.
Within that folder, it creates a folder with the current computer’s
name.
It then creates a Catalog folder containing the Global Catalog and
Backup Global Catalog files and a “Backup
<year>-<month>-<date> <time>” folder containing the disk image file.
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System Image backups use a similar folder structure to file backups. When you create a System Image backup, Windows creates a
WindowsImageBackup folder in the root of the backup media.
Within that folder, it creates a folder with the current computer’s
name.
It then creates a Catalog folder containing the Global Catalog and
Backup Global Catalog files and a “Backup
<year>-<month>-<date> <time>” folder containing the disk image file.
How to Manage Backup Using Group Policy Settings
Group Policy is the central component of the Change and
Configuration Management features of the Microsoft®
Group Policy specifies settings for groups of users and of computers,
including registry-based policy settings, security settings
software installation Scripts
folder redirection
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Group Policy is the central component of the Change and
Configuration Management features of the Microsoft®
Group Policy specifies settings for groups of users and of computers,
including registry-based policy settings, security settings
software installation Scripts
folder redirection
Continue...
You can use Group Policy to manage Windows Backup options in an
enterprise environment.
The policy settings for Windows Backup are both user and computer
settings.
The user- specific settings are client-only settings and are found in the
following location:
User Configuration\Policies\Administrative Templates\Windows
Components\Backup\Client
You can use Group Policy to manage Windows Backup options in an
enterprise environment.
The policy settings for Windows Backup are both user and computer
settings.
The user- specific settings are client-only settings and are found in the
following location:
User Configuration\Policies\Administrative Templates\Windows
Continue…
The computer settings are for both the client and the server and are
found in the following locations:
Computer Configuration\Policies\Administrative
Templates\Windows Components\Backup\Client
Computer Configuration\Administrative
Templates\Windows Components\Backup\Server
The computer settings are for both the client and the server and are
found in the following locations:
Computer Configuration\Policies\Administrative
Templates\Windows Components\Backup\Client
Computer Configuration\Administrative
How Volume Shadow Copy Works
To provide backups for files that are in use, Windows 7 uses the Volume
Shadow Copy service, which was first introduced with Windows XP.
Volume Shadow Copy mitigates file access between applications and
the backup process. In other words, if a backup tool needs to access a file currently in use, Volume Shadow Copy creates a shadow copy of that file and then provides the backup process access to the
shadow copy.
To provide backups for files that are in use, Windows 7 uses the Volume
Shadow Copy service, which was first introduced with Windows XP.
Volume Shadow Copy mitigates file access between applications and
the backup process. In other words, if a backup tool needs to access a file currently in use, Volume Shadow Copy creates a shadow copy of that file and then provides the backup process access to the
Continue…
Volume Shadow Copy works with any application.
Some applications, however, can communicate directly with the
Volume Shadow Copy service to ensure that backed-up files are consistent.
If an application keeps several files in use at the same
time, they might become inconsistent if two files must be
synchronized and one of those files is updated after another is backed up in an earlier state.
Volume Shadow Copy works with any application.
Some applications, however, can communicate directly with the
Volume Shadow Copy service to ensure that backed-up files are consistent.
If an application keeps several files in use at the same
time, they might become inconsistent if two files must be
synchronized and one of those files is updated after another is backed up in an earlier state.
Continue…
To provide backup access to a file that is open and being
updated, Volume Shadow Copy needs to be able to make two versions of the file accessible:
one that is currently in use by the application and a second that is a snapshot of the file when
backup first requested access to a volume shadow copy volume
Shadow Copy handles this transparently by storing copies of changed files in Volume Shadow Copy storage.
Volume Shadow Copy stores a copy of the original state of any
modified portion of a file, which allows the original file to be updated without interrupting the backup process.
To provide backup access to a file that is open and being
updated, Volume Shadow Copy needs to be able to make two versions of the file accessible:
one that is currently in use by the application and a second that is a snapshot of the file when
backup first requested access to a volume shadow copy volume
Shadow Copy handles this transparently by storing copies of changed files in Volume Shadow Copy storage.
Volume Shadow Copy stores a copy of the original state of any
modified portion of a file, which allows the original file to be updated without interrupting the backup process.
MSConfig
Microsoft software utility first introduced with Windows 98 and included
with all later versions of Windows that enables users to configure how their computer starts and what programs or services automatically load each time the computer starts.
Users running these versions of Windows can open msconfig by
following the below steps.
Click the Start orb in the Start Search Type msconfig and press enter,
once done you should see the System Configuration Utility window
Microsoft software utility first introduced with Windows 98 and included
with all later versions of Windows that enables users to configure how their computer starts and what programs or services automatically load each time the computer starts.
Users running these versions of Windows can open msconfig by
following the below steps.
Click the Start orb in the Start Search Type msconfig and press enter,
Continue…
The General tab is the default tab in the System configuration and
shows how the computer will start
by default Normal startup should be selected. If you've changed any
of the settings in the Boot tab or disabled any programs or services from starting up the Selective startup will be selected.
If Selective startup is enabled and startup programs or services have
been disabled, a notice will appear when the computer first starts letting you know that Selective startup is enabled.
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The General tab is the default tab in the System configuration and
shows how the computer will start
by default Normal startup should be selected. If you've changed any
of the settings in the Boot tab or disabled any programs or services from starting up the Selective startup will be selected.
If Selective startup is enabled and startup programs or services have
been disabled, a notice will appear when the computer first starts letting you know that Selective startup is enabled.
