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Server Backup 101

Server Backup 101. CC Day, Term 3, 2004. "There are two types of people. Those who have lost data and those who will.". Retrospect advertisement. Server Backup. 1. Why Backup. 2. What to Backup. 3. Types of Backup. 4. Backup Hardware. 5. Backup Software. 6. Backup Hints. 7. Questions.

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Server Backup 101

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  1. Server Backup 101 CC Day, Term 3, 2004

  2. "There are two types of people. Those who have lost data and those who will." Retrospect advertisement

  3. Server Backup 1. Why Backup 2. What to Backup 3. Types of Backup 4. Backup Hardware 5. Backup Software 6. Backup Hints 7. Questions

  4. Why Backup • Prevent data loss due to: • Hardware failures • Software failures • Deliberate User actions • User mistakes • Carbon-based problems • Pebkac, ID 10 T errors or other user related problems, • Flood/Fire/Storm and other ‘acts of god’ • Theft and Vandalism

  5. How data dies Source: http://www.backup.com/learnmore_why.html

  6. What to Backup • All data/files which can not easily be replaced. • Student and staff data files • NDS / AD data • There is no need to backup: • Operating System files • Application or Program files (files with the .EXE, .DLL, or .INI extensions) • Temporary files (files with the .TMP extension) • Scan Disk Error files (files with the .CHK extension)

  7. Types of Backup • Full Backup • Backup of all files in set. • Incremental Backup • Backup of all files which have changed since last backup. • Differential Backup • Backup of all files which have changed since last FULL backup.

  8. + Inexpensive, CD-RW Drives <$100 CD-R disks <50c CD-RW discs < $2 DVD ±RW Drives <$300 DVD ±R discs < $2 DVD±RW discs < $6 + RW media re-usable Small capacity CD – 800Mb DVD – 4.3 Gb Easily damaged Backup Hardware - Optical CD-R/CD-RW or DVD±R/DVD±R Drives

  9. + Media re-usable + Large Capacity DLT – 40/80Gb – 160/320 Gb + Quick - Expensive, DLT Drives >$1700 DLT Tapes >$70 (20/40) DAT Drives > $1000 DAT Tapes > $20 (20/40 Gb) Backup Hardware - Tape Magnetic Tape Drives - DLT, DAT, AIT, Travan

  10. + Inexpensive $ 120 for case $ 140 for 160 Gb drive $295 for 120 Gb Maxton One Touch Including Retrospect Express Backup software – Mac + PC + media re-usable + Very Large Capacity 80 Gb – 300 Gb + Quick – 400 Mb/s + Portable Can be used on any computer/Server with USB/Firewire. - Size - Vulnerable to shock damage - Requires USB 2 or Firewire to achieve speed Backup Hardware – External HDD Hard disk drives in external Case with USB 2 and/or Firewire Connections

  11. + media re-usable + Very Large Capacity 80 Gb – 500 Gb + Quick – 100/1000 Mb/s + Versatile Can be used to backup any Server/Workstation on LAN - Expensive $ 1200 for 160 Gb drive $ 2000 for 500 Gb drive - Cannot be taken Offsite Backup Hardware – NAS Network Attached Storage

  12. + media re-usable + Quick + Inexpensive + $650 for Drive + Comes with backup software (Mac & PC) + Easy to move offsite. Media is costly $ 95 for 35/90 Gb Cartridge Backup Hardware – Cartridge Iomega REV – USB2.0 or Firewire

  13. Backup Software - Windows • Backup Exec (Windows / Netware) • Free to schools • ftp://software.det.nsw.edu.au/Backup%20Exec91%20Win/ • MS Backup • Free – Part of standard install • Backup4Win • Free - http://www.back4win.com/

  14. Netware • Backup Exec • SBackup • Free • Installed by default • Netware 6.5 supports USB Hard drives

  15. Backup Software - Mac • Dantz Retrospect • ~$1300

  16. SilverKeeper • http://www.lacie.com/silverkeeper • Free • Backup 2.0.2 • http://www.apple.com/support/downloads/backup.html • Free

  17. Recommended Backup Routine • Incremental backups during cycle • Full backup at end of cycle • Backups done after normal operating hours • You can not backup files currently in use/opened • E.g. • 7 Day Cycle (Friday – Thursday) • Friday – 7pm – Incremental • Monday – Wednesday – 7pm – Incremental • Thursday – 7pm – Full • No Backup on Saturday, Sunday • Media replaced each Friday Morning

  18. Recommended Backup Routine • At least 3 backup cycles/sets • Provides history • Media replaced annually • Backup verified regularly • Always check logs • Use task scheduler to automate backup • Backups kept OFF SITE • i.e. Off school grounds.

  19. All Backed up – no worries

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