network implementation and support lesson 12 backups
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Network Implementation and Support Lesson 12 BackupsTRANSCRIPT
Eric Vanderburg © 2006
Network Implementation & Support
Chapter 12
Backups
Eric Vanderburg © 2006
Overview
• Windows Backup Utility
• Shadow Copies
• Automated System Recovery
• Startup Options
• Recovery Console
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Windows Backup
• Backup or restore• System State
– Registry– COM+ (classes)– Boot files– Certificate Services database– Active Directory– SYSVOL– Cluster Service– IIS Metadirectory– System Files
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Windows Backup
• Selected files
• Can be scheduled
• Backup Types– Normal (resets archive bit)– Copy– Differential– Incremental (resets archive bit)– Daily (only files changed today
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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
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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
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Shadow Copies
• 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
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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%\system32\clients\twclient\x86\
twcli32.msi– View properties of a file or folder.
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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
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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
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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.
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Advanced Startup• 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
• Enable VGA Mode• Last Known Good Configuration• Directory Services Restore Mode• Debugging Mode
– Send debug info via serial– Used by developers for kernel modifications
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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
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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.
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Acronyms
• VSS, Volume Shadow Copy
• ASR, Automated System Recovery
• ERD, Emergency Repair Disk