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Any Questions?. Chapter 7- Backing Up Data. Manage backup procedures Verify the successful completion of backup jobs Manage backup storage media Configure security for backup operations Schedule backup jobs Restore backup data. Pg 7-1. Chapter 7- Backing Up Data.

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  1. Any Questions?

  2. Chapter 7-Backing Up Data • Manage backup procedures • Verify the successful completion of backup jobs • Manage backup storage media • Configure security for backup operations • Schedule backup jobs • Restore backup data Pg 7-1

  3. Chapter 7-Backing Up Data • Lesson 1: Fundamentals of Backup • Lesson 2: Restoring Data • Lesson 3: Advanced Backup and Restore Pg 7-1

  4. Any Questions?

  5. Lesson 1: Fundamentals of Backup • Back up data on local and remote computers • Understand backup job types • Create a backup strategy combining normal and incremental or differential backups Pg 7-3

  6. Introducing the Backup Utility • Ntbackup.exe or from system tools • Back up data manually (the Backup tab) • Use the Backup Wizard. • Schedule unattended backup jobs. • Restore data manually (the Restore And Manage Media tab) • Allow you to use the Restore Wizard. Pg 7-4

  7. Selecting Files to backup • Do we need to backup all files? • Choose the files that are part of the backup set • These files will be checked when a backup is run • Local or Network • Use the Univesral Naming Convention (UNC) name • \\servername\sharenam\file Pg 7-5

  8. Selecting the backup Destination • Where do you want to save the backup • Device, or file • A file will have the .bkf extension • Cannot backup to CD or DVD • Backing up to a device requires the device to be LOCAL • Connected to that machine • Tape or iomega, etc Pg 7-5

  9. Backup Strategy • Understand what will be backed up • Understand how it affects the Archive bit • Archive bit is set when a files is modified and cleared by certain types of backups • Understand Combinations of types • Backup Types • Normal • Incremental • Differential • Copy • Daily Pg 7-6

  10. Normal Backup • All selected files and folders are backed up • Archive bit is cleared • Tells system that it doesn’t need to be backed up • Most Time consuming • Also called a full backup Pg 7-6

  11. Incremental Backup • Only files that have the archive bit set are backed up • Archive bit is cleared • For example • If a full is done on Monday • Tuesday incremental will only backup what has changed since Monday backup • Wednesday backup will only backup what was changed since Tuesday backup Pg 7-6

  12. Differential Backup • Only files that have the archive bit set are backed up • Archive bit is NOT cleared • For example • If a full is done on Monday • Tuesday incremental will backup what has changed since Monday backup • Wednesday backup will backup what was changed since Monday backup • Each day, backups will take longer • Less backup sets are needed to restore Pg 7-7

  13. Copy and Daily Backup • Copy • All files in list are backed up • Doesn’t affect archive bit • Not usually part of regular backup strategy • Used for archive • Daily • Backs up any files backed up that day • Archive bit not used • Usually not used as part of backup schedule Pg 7-7

  14. Normal and Incremental MON TUE WED THUR FRI WKND Full/ Normal Incremental Incremental Incremental Incremental Incremental Pg 7-7

  15. Normal and Differential MON TUE WED THUR FRI WKND Full/ Normal Differential Differential Differential Differential Differential Pg 7-7

  16. Any Questions?

  17. Lesson 2: Restoring Data • Restore data to its original location or to an alternate folder • Configure restore options Pg 7-14

  18. Restoring with the Backup Utility • Choose the backup set • Choose the file from the backup catalog • Choose location • Original location Files and folders will be restored to the location from which they were backed up. The original folder structure will be maintained or, if folders were deleted, re-created. • Alternate location Files and folders will be restored to a folder you designate in the Alternate Location box. The original folder structure is preserved and created beneath that folder, where the designated alternate location is equivalent to the root (volume) of the backed-up data. So, for example, if you backed up a folder C:\Data\Finance and you restored the folder to C:\Restore, you would find the Finance folder in C:\Restore\Data\Finance. • Single folder Files are restored to the folder you designate, but the folder structure is not maintained. All files are restored to a single folder. Pg 7-14-15

  19. Restore Options • Do Not Replace The File On My Computer. This option, the default, causes the Restore utility to skip files that are already in the target location. A common scenario leading to this choice is one in which some, but not all, files have been deleted from the restore location. This option will restore such missing files with the backed-up files. • Replace The File On Disk Only If The File On Disk Is Older. This option directs the restore process to overwrite existing files unless those files are more recent than the files in the backup set. The theory is that if a file in the target location is more recent than the backed-up copy, it is possible that the newer file contains information that you do not want to overwrite. • Always Replace The File On My Computer. Under this restore option, all files are overwritten by their backed-up versions, regardless of whether the file is more recent than the backup. You will lose data in files that were modified since the backup date. Any files in the target location that are not in the backup set will remain, however. • Can also choose to restore permissions • Only on NTFS Pg 7-15

  20. Any Questions?

  21. Lesson 3: Advanced Backup and Restore • Configure group membership to enable a user to perform backup and restore operations • Manage tape backup media • Catalog backup sets • Configure backup options • Execute a backup from the command prompt • Schedule backup jobs • Configure and use Shadow Copies Of Shared Folders Pg 7-20

  22. Lesson 3: Advanced Backup and Restore • How to make backup operations • more flexible • more automated • even easier • Technologies underlying data backup such as VSS and RSM • Options for scripting and scheduling backup operations • New Shadow Copies Of Shared Folders feature to enable users to recover from simple data-loss scenarios without administrative intervention. Pg 7-20

  23. Understanding VSS • Volume Shadow Service (VSS) • Snap Backup • Best practice is to do backups when there is little usage • Traditionally the system would log out all users and disconnect network • VSS allows backup of files when in use Pg 7-20

  24. Backup Security • To back up • Backup Files and Directories user right • NTFS Read permission • To Restore • Restore Files And Directories user right, • NTFS Write permission • Backup Operators group • Built in group in active directory • Can add users or groups to this group Pg 7-21

  25. Backup Security • Users with the Restore Files And Directories user right can • remove NTFS permissions from files during restore • Windows Server 2003, they can additionally transfer ownership of files between users • Careful of who can get to tapes and backups Pg 7-21

  26. Managing Media • Removable Storage Manager (RSM) helps windows manage tapes • Keep track of media through serial number and label • Uses Media Pools • Unrecognized-Must be formatted • Free-Newly formatted or marked blank • Backup-Used, or ready to be used • Import-Tapes that are not yet in the pool, will be brought in Pg 7-22

  27. Managing Tapes and Media Pools • Adminstrative Tasks unrelated to actual backup of files • Format a tape Right-click a tape and choose Format. Formatting is not a secure way to erase tapes. If you need to erase tapes for legal or security reasons, use an appropriate third-party utility. Formatting does, however, prepare a tape and move it into the free media pool. Not all drives support formatting. • Retension a tape Right-click a tape and choose Retension. Not all drives support retensioning. • Mark a tape as free Right-click a tape and choose Mark As Free. This moves the tape into the free media pool. It does not erase the tape. If you need to erase tapes for legal reasons, use an appropriate third-party utility. Pg 7-22

  28. Catalogs • Lists the files included in a backup set • Stored locally on HD and on backup tape/file • Catalogs can be recreated • Delete Catalog Right-click a backup set and choose Delete Catalog if you have lost or damaged the backup media or if you are transferring files to another system and no longer require its local catalog. The on-media catalog is not affected by this command. • Catalog A tape from a foreign system that is not cataloged on the local machine will appear in the import media pool. Right-click the media and choose the Catalog command. Windows will generate a local catalog from the tape or file. This does not create or modify the on-media catalog Pg 7-23

  29. Backup Options • Compute Selection Information Before Backup And Restore Operations • Use The Catalogs On The Media To Speed Up Building Restore Catalogs On Disk • Verify Data After The Backup Completes • Backup The Contents Of Mounted Drives Pg 7-24

  30. Backup Logging/File Exclusions/Advanced Backup Options • Summary log shows skipped files • More detail can get lost • Can choose to exclude certain file types • Page files, temp files, etc. • Advanced Options • Verify Data After Backup • If Possible, Compress The Backup Data To Save Space • Disable Volume Shadow Copy Pg 7-24

  31. NTBACKUP • Command line tool • Useful for creating scripts • Ntbackup backup {"path to backup" or "@selectionfile.bks"} /j "Job Name" options Pg 7-24

  32. Scheduling backup jobs • Create a job • Select the files • Select the location • Select options • Click Schedule • Specify the username and password of the account used to do the backup • Doesn’t have to be yours • Name the job • Choose options Pg 7-28-29

  33. Shadow Copies of Shared Folders • For quick recovery of damaged files/folders • VSS automatically caches copies of files as they are modified • Not intended to replace normal backup procedures Pg 7-28-29

  34. Enabling and Configuring Shadow Copies • Not on by default • Use the Properties dialog box of a drive volume from Windows Explorer or the Disk Management snap-in • All shares will have shadow copy turned on, cannot select individual shares • Copies made on regular schedule • If it is disabled, all copies are lost • May want to limit schedule instead Pg 7-28-29

  35. Configuring Shadow Copies • Storage volume To enhance performance (not redundancy), you can move the shadow storage to another volume. This must be done when no shadow copies are present. If shadow copies exist, and you want to change the storage volume, you must delete all shadow copies on the volume, then change the storage volume. • Details The dialog box lists shadow copies that are stored and space utilization statistics. • Storage limits This can be as low as 100 MB. When the shadow copy runs out of storage, it deletes older versions of files to make room for newer versions. The proper configuration of this setting depends on the total size of shared folders on a volume with shadowing enabled; the frequency with which files change, and the size of those files; and the number of previous versions you wish to retain. In any event, a maximum of 63 previous versions will be stored for any one file before the earliest version is removed from the shadow storage. • Schedule You can configure a schedule that reflects the work patterns of your users, ensuring that enough previous versions are available without prematurely filling the storage area and thereby forcing the removal of old versions. Remember that when a shadow copy is made, any files that have changed since the previous shadow copy are copied. If a file has been updated several times between shadow copies, those interim versions will not be available. Pg 7-30-31

  36. Using Shadow Copies • Recover files that were accidentally deleted. • Recover from accidentally overwriting a file. • Compare versions of files while working. • To access previous versions, click the properties of a folder or file and click the Previous Versions tab Pg 7-31

  37. Using Shadow Copies Pg 7-31

  38. Using Shadow Copies • To restore you must have • Shadow Copies is enabled • Previous versions stored on the server • Shadow copy client installed on your system • Accessing a file’s properties through a shared folder. • If the file is stored on the local hard drive, you will not see the Previous Versions tab, even if the file is shared and VSS is enabled. • Can restore to original location or to another location • Permissions are not restored-uses inheritance Pg 7-32

  39. Using Shadow Copies • If file has been deleted • Use previous version of folder • Find the file • Restore to location and copy if you want • If a user requires data to be restored and that data is no longer available through Previous Versions, you can restore the data from backup. • If the server becomes corrupted, you must restore the data from backup. Pg 7-33

  40. Any Questions?

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