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Presentation on Backup    Group members    Aneela Maqboool      Saira Nisar       Tehmina         Rabia
Outline•   What is backup•   Backup strategy•   Recovery procedures•   Factors in recovery procedures•   Backup purposes• ...
What is a Backup?• Backup is an additional copy of data that  can be used for restore and recovery  purposes• This Backup ...
Backup Strategy A backup is put in place to avoid permanent data loss to ensure the integrity of stored data i.e. can get ...
Recovery Procedures• A backup strategy needs a well documented and tested recovery procedure to ensure backup data is rest...
Factors in recoveryprocedure:• A well documented procedure that allocates    roles and responsibilities to staff.•   Avail...
Backup purposes – Disaster Recovery    • Restores production data to an operational state      after disaster – Operationa...
Types of backups•   Three basic types of backups:•   Full backups•   Differential backups•   Incremental backups
Full backups     – full and complete backup of entire systemFull BackupSu            Su          Su          Su           Su
Differential backups       – storage of all files that have changed or been         added since last full backupSu M   T W...
Restoring from Differential Backup  Monday        Tuesday      Wednesday     Thursday                Frida                ...
Key Features of Differentialbackups  – More files to be backed up, therefore it takes    more time to backup    and uses m...
Incremental backups• only archives data that have been   modified that daySu M   T W   T   F   S Su M   T   W T   F   S   ...
Incremental backup   Monday         Tuesda       Wednesday        Thursday              Frida                    y        ...
Key Features of Incrementalbackups – Files that have changed since the last backup   are backed up – Fewest amount of file...
Backup Architecture andProcess• Backup client  – Sends backup data to backup server or    storage node• Backup server  – M...
Backup Architecture and   Process                                             og                                        Ca...
Backup Operation                     Application Server and Backup Clients       3b                     4 1               ...
Backup Operation• Start the scheduled backup process• Backup data retrieves backup related information from    backup cata...
Restore Operation                     Application Server and Backup Clients       3b                     4 1              ...
Restore Operation• Backup server scans backup catalog to identify    the data to be restore and the client that will    re...
Backup Topologies• There are 3 basic backup topologies:  –   Direct Attached Based Backup  –   LAN Based Backup  –   SAN B...
Direct Attached Backups                           Metadata                                      Data                     L...
LAN Based BackupsApplication Serverand Backup Client                 Backup Server                     LAN                ...
SAN Based Backups (LAN  Free)                                FC SAN         LAN           Metadata             DataBackup ...
Backup Technology options• Backup to Tape Physical Tape library• Backup to tape
Backup to Tape•   Traditional destination for backup•   Low cost option•   Sequential / Linear Access•   Multiple streamin...
Backup to TapeData fromStream 1    Data from            Stream 2    Data from                        Stream 3             ...
Tape Limitations• Reliability• Sequential Access• Cannot be accessed by multiple host  simultaneously• Control environment...
Backup to Disk•   Ease of implementation•   Fast access•   More reliable•   Random access•   Multiple host access•   Enhan...
New Features• File backup and restore Simple and automatic protection Complete PC™ backup and restore Block-level image En...
Backing up files andfolders (file backup)
• If you are going to create a full backup, type the file name in the File Name line, or use the file name generator (a bu...
Presentation on backup and recoveryyyyyyyyyyyyyyyyyyy
Presentation on backup and recoveryyyyyyyyyyyyyyyyyyy
Presentation on backup and recoveryyyyyyyyyyyyyyyyyyy
Presentation on backup and recoveryyyyyyyyyyyyyyyyyyy
Presentation on backup and recoveryyyyyyyyyyyyyyyyyyy
Presentation on backup and recoveryyyyyyyyyyyyyyyyyyy
Presentation on backup and recoveryyyyyyyyyyyyyyyyyyy
Presentation on backup and recoveryyyyyyyyyyyyyyyyyyy
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Presentation on backup and recoveryyyyyyyyyyyyyyyyyyy

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Transcript of "Presentation on backup and recoveryyyyyyyyyyyyyyyyyyy"

  1. 1. Presentation on Backup Group members Aneela Maqboool Saira Nisar Tehmina Rabia
  2. 2. Outline• What is backup• Backup strategy• Recovery procedures• Factors in recovery procedures• Backup purposes• Types of backup• Backup architecture and process• Backup topologies• Backup technology options• Features• Installation of Acronis
  3. 3. What is a Backup?• Backup is an additional copy of data that can be used for restore and recovery purposes• This Backup copy can be created by: – Simply coping data (there can be one or more copies) – Mirroring data (the copy is always updated with whatever is written to the primary
  4. 4. Backup Strategy A backup is put in place to avoid permanent data loss to ensure the integrity of stored data i.e. can get back to a previous version and build up the data correctly if current data found to be in error.
  5. 5. Recovery Procedures• A backup strategy needs a well documented and tested recovery procedure to ensure backup data is restored properly
  6. 6. Factors in recoveryprocedure:• A well documented procedure that allocates roles and responsibilities to staff.• Availability of alternative hardware and accommodation if the originals have been destroyed.• Availability of original software such as the customised operating system and application programs!• That up-to-date backup data is readily available
  7. 7. Backup purposes – Disaster Recovery • Restores production data to an operational state after disaster – Operational • Restore data in the event of data loss or logical corruptions that may occur during routine processing – Archival • Preserve transaction records, email, and other business work products for regulatory compliance
  8. 8. Types of backups• Three basic types of backups:• Full backups• Differential backups• Incremental backups
  9. 9. Full backups – full and complete backup of entire systemFull BackupSu Su Su Su Su
  10. 10. Differential backups – storage of all files that have changed or been added since last full backupSu M T W T F S Su M T W T F S Su M T W T F S Su M T W T F S Su
  11. 11. Restoring from Differential Backup Monday Tuesday Wednesday Thursday Frida yFiles 1, 2, 3 File 4 Files 4, 5 Files 4, 5, 6 Files 1, 2, 3, 4, 5 Full Backup Cumulative Cumulative Cumulative Production
  12. 12. Key Features of Differentialbackups – More files to be backed up, therefore it takes more time to backup and uses more storage space – Much faster restore because only the last full and the last cumulative backup must be applied
  13. 13. Incremental backups• only archives data that have been modified that daySu M T W T F S Su M T W T F S S M T W T F S Su M T W T F S Su u
  14. 14. Incremental backup Monday Tuesda Wednesday Thursday Frida y yFiles 1, 2, 3 File 4 Updated File 3 File 5 Files 1, 2, 3, 4, 5 Full Backup Incremental Incremental Incremental Production
  15. 15. Key Features of Incrementalbackups – Files that have changed since the last backup are backed up – Fewest amount of files to be backed up, therefore faster backup and less
  16. 16. Backup Architecture andProcess• Backup client – Sends backup data to backup server or storage node• Backup server – Manages backup operations and maintains backup catalog• Storage node – Responsible for writing data to backup device
  17. 17. Backup Architecture and Process og Catal adata Met Backup Data Ba cku pD ataApplication Server/ Backup Server/ Tape LibraryBackup Client Storage Node
  18. 18. Backup Operation Application Server and Backup Clients 3b 4 1 5 3a 2 6 7 Storage Node Backup DeviceBackup Server
  19. 19. Backup Operation• Start the scheduled backup process• Backup data retrieves backup related information from backup catalog• Backup server instructs storage node to local backup media in backup device• Backup server instruct backup clients to send its metadata to the backup server and data to be backup to storage mode.• Backup clients send data to storage node• Storage node sends data to backup device• Storage node sends media information to backup servers• Backup server update and records the status
  20. 20. Restore Operation Application Server and Backup Clients 3b 4 1 5 3a 2 6 7 Storage Node Backup DeviceBackup Server
  21. 21. Restore Operation• Backup server scans backup catalog to identify the data to be restore and the client that will receive data.• Backup servers instructs storage node to load backup media in backup device.• Data is read and send to backup client.• Storage node sends restore metadata to backup server.• Backup server updates catalog.
  22. 22. Backup Topologies• There are 3 basic backup topologies: – Direct Attached Based Backup – LAN Based Backup – SAN Based Backup
  23. 23. Direct Attached Backups Metadata Data LANBackup Server Application Server and Backup Client Backup Device and Storage Node
  24. 24. LAN Based BackupsApplication Serverand Backup Client Backup Server LAN Data Storage Node Backup Device
  25. 25. SAN Based Backups (LAN Free) FC SAN LAN Metadata DataBackup Backup DeviceServer Application Server and Backup Client Storage Node
  26. 26. Backup Technology options• Backup to Tape Physical Tape library• Backup to tape
  27. 27. Backup to Tape• Traditional destination for backup• Low cost option• Sequential / Linear Access• Multiple streaming – Backup streams from multiple clients to a single backup device
  28. 28. Backup to TapeData fromStream 1 Data from Stream 2 Data from Stream 3 Tape
  29. 29. Tape Limitations• Reliability• Sequential Access• Cannot be accessed by multiple host simultaneously• Control environment for tape storage• Wear and tear of tape
  30. 30. Backup to Disk• Ease of implementation• Fast access• More reliable• Random access• Multiple host access• Enhanced overall back and recovery performance
  31. 31. New Features• File backup and restore Simple and automatic protection Complete PC™ backup and restore Block-level image Entire computer Server backup Files, folders, disks, common workloads
  32. 32. Backing up files andfolders (file backup)
  33. 33. • If you are going to create a full backup, type the file name in the File Name line, or use the file name generator (a button to the right of the line). If you select an existing archive, it will be overwritten.
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