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IT:Network:Applications10-150-188
What is the worst that could happen?◦ It will
When is the worst time that could happen?◦ That’s when it will
What can we do to prevent it? What can we do to recover from it?
Physical◦ Fire Suppression◦ Floods?◦ Who’s there?
File System◦ Rights/Permissions◦ NTFS vs Share
Authentication◦ Password required◦ Change passwords
How are we configured?◦ At a minimum◦ Step by step system procedures from building a
server to making a folder Hardware (Bios settings)
◦ What is required to get a system restored OS
◦ Version; License Numbers; Administrator Password;◦ IP Addr; Services Installed; Services Config
Helps to check configuration Helps to rebuild if needed
Security Updates as soon as feasible Service Packs
◦ When your third party software blesses it◦ Some software packages can be 6 months behind
Driver Updates ?◦ If it ain’t broke…well, test
BIOS Updates ?◦ See above
Optional Updates ? Use Test Machine(s) / Lab
“It isn’t if the hard drive will fail, it’s when will the hard drive fail.”
User “oops” or PEBKAC◦ Accident◦ Intentional◦ 95% of data loss comes from inside
Full backup is always best◦ Incremental◦ Differential◦ Both handle a file based on the archive bit status
Tape Rotation◦ Grandfather – Father – Son (GFS)
G: Monthly full; F: Weekly full; S: Daily
◦ Others available: (e.g., Tower of Hanoi) Think powers of 2 setA every two days; setB every 4 days; setC every
8…
M T W H F
1 2 3 4 F:5
1 2 3 4 F:6
1 2 3 4 F:7
1 2 3 4 G:8
Daily backups◦ Should keep the previous backup off-site◦ Rotate off-site daily◦ Quick and easy to restore◦ Full backup can be rotated every two weeks at a
minimum. FridayA is offsite until FridayB is run
Weekly/Monthly◦ Kept as long as “needed”◦ Keep secured
Theft
Larger companies outsource backup storage Third party companies offering remote
backup services (cloud-ish data backup)
Windows Server 2008 R2 does not support tape devices
Backups are trending towards disk to disk backups
System imaging is gaining popularity Can backup to file or to a remote system
Doesn’t need to be fancy◦ Microsoft Backup works
GUI is easy to use◦ Command line options—
Wbadmin.exe Wbadmin.exe START RECOVERY –
version:09/30/2010-18:30 –items:d:\common –itemtype:File –backupTarget:E: -recursive
You get what you pay for◦ Symantec Backup Exec◦ Backup Assist◦ Storageworks