Network Implementation and Support Lesson 12 Backups

1. Network Implementation &
Support
Chapter 12
Backups
Eric Vanderburg © 2006

2. Overview
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Windows Backup Utility
Shadow Copies
Automated System Recovery
Startup Options
Recovery Console
Eric Vanderburg © 2006

3. Windows Backup
• Backup or restore
• System State
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Registry
COM+ (classes)
Boot files
Certificate Services database
Active Directory
SYSVOL
Cluster Service
IIS Metadirectory
System Files
Eric Vanderburg © 2006

4. Windows Backup
• Selected files
• Can be scheduled
• Backup Types
– Normal (resets archive bit)
– Copy
– Differential
– Incremental (resets archive bit)
– Daily (only files changed today
Eric Vanderburg © 2006

5. Windows Backup
• Permissions to backup entire system
– Administrators
– Backup Operators
– Server Operators
• Otherwise, backup is only permitted on files they
own or have at least read NTFS permissions to.
• Only the local machine can be backed up
• Specific components of the system state cannot
be selected individually for backup or restore
• Files can be restored to another location
Eric Vanderburg © 2006

6. Windows Backup
• Ntbackup
• Saved as .bkf compressed file
• Boot to AD Restore mode to restore AD
database
– Use password set when dcpromo was run
– Restore system state with ntbackup
– Run ntdsutil to make the restore authoritative
• Changes version
• Replaces AD once replicated with other DCs
Eric Vanderburg © 2006

7. Shadow Copies
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VSS (Volume Shadow Copy Service)
Restore deleted files
Go back to previous versions
Compare previous versions & copy back
into the folder
• Makes backups at specified intervals,
twice a day M-F
• Only tracks changes so space is used
efficiently
Eric Vanderburg © 2006

8. Shadow Copies
• Defaults:
– Copy at 7:00 AM & 12:00 PM M-F
– Uses 10% of hard drive space
• Settings
– Change space utilization (100MB min)
– Stores up to 64 copies
• Previous versions client
– %systemroot%system32clientstwclientx86
twcli32.msi
– View properties of a file or folder.
Eric Vanderburg © 2006

9. Automated System Recovery
• Restores system configuration information
• Backs up registry & user preferences
• Data must be restored and applications installed
once the ASR process is complete.
• Does not restore any installed programs from
the program Files folder.
• Replaces the NT/2k ERD (Emergency Repair
Disk)
• Contents of the disk:
– Boot files
– Asr.sif, Asrpnp.sif
Eric Vanderburg © 2006

10. ASR Restore Process
• 1. Insert the Windows XP CD-Rom into
the drive
2. Insert the ASR Floppy disk into the
drive
3. Power up the computer
4. Press the enter key when prompted to
"press any key to run from the CD"
5. Press F2 on the keyboard when
prompted to start the ASR recovery action.
6. XP will format the C drive
7. The computer will restart
Eric Vanderburg © 2006

11. ASR Restore Process
• 8. Let windows XP start automatically (do not
press a key to run from the CD).
9. XP will go through the basic plug and play
discovery and copy setup files to the C drive.
10. The computer will restart and boot into XP
11. The ASR wizard will start and automatically
point to the asr.bkf file on the CD. Click OK to
restore the system state and registry
configuration.
13. When completed XP will either present the
login screen
• 14. Return to the Backup wizard to restore any
valued data that was saved beforehand to the
drive.
Eric Vanderburg © 2006

12. Advanced Startup
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Press F8 on boot before Windows logo appears
Safe Mode
Safe Mode with Networking
Safe mode with Command Prompt
Enable Boot Logging
– Logs all the drivers and services loaded and not loaded,
%systemroot%ntbtlog.txt
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Enable VGA Mode
Last Known Good Configuration
Directory Services Restore Mode
Debugging Mode
– Send debug info via serial
– Used by developers for kernel modifications
Eric Vanderburg © 2006

13. Recovery Console
• Run from setup process on Windows CD or by
installing it as a startup option
• Winnt32.exe /cmdcons
• Start/stop services
• Format drives
• Look at data
• Replace files
• Change configuration
• Must have administrator password to enter the
recovery console
Eric Vanderburg © 2006

14. Recovery Console Commands
• Listsvc - Lists the services and drivers available on the
computer.
• Expand - Extracts a file from a compressed file.
• Fixboot - Writes a new partition boot sector onto the
specified partition.
• Fixmbr - Repairs the master boot record of the specified
disk.
• Diskpart - Manages partitions on your hard drives.
• Enable - Starts or enables a system service or a device
driver.
• Disable - Disables a system service or a device driver
• Bootcfg - Boot file (boot.ini) configuration and recovery.
• Chkdsk - Checks a disk and displays a status report.
Eric Vanderburg © 2006

15. Acronyms
• VSS, Volume Shadow Copy
• ASR, Automated System Recovery
• ERD, Emergency Repair Disk
Eric Vanderburg © 2006