Don

1
Dont get caught with your server down!
Session IX
2

• What is Disaster Recovery?

3
Disaster

• Deleted files
• Lost configurations
• Database corruption
• Crashed hard drive
• Fire damage
• Natural disaster
• Theft
• Viruses

4
Recovery

• Restoring files
• Restoring configurations
• Restoring databases
• Replacing hardware and restoring data
• Replacing missing network components
• Rebuilding an entire network - fast

5
Your ability to recover your data or LAN in the
event of a disaster and get your business back up
and running.
Disaster Recovery
6
Data Recovery Tools

• Tape Backup Systems
• Network Attached Storage
• RAID Capable Storage Systems
• Mirroring / Duplexing
• Online Backup Solutions
• Remote Backup Solutions
• Undelete / File Salvage Programs
• Scheduled Data Exports
• Outside Data Recovery Providers - Ontrack

Visit their display tables outside the Ballroom
7
Tape Backup Systems

• Tape media with tape drive hardware
• Backup software running on server or workstation
• Software provides interface to select data to be
  backed up or restored
• Software allows for and handles pre-defined
  backup schedule
• Cost effective solution for large backup
  requirements
• Slow data transfer when compared to hard drive
  solutions

8
Network Attached Storage

• Basically a large hard drive attached to LAN
• High speed, high efficiency and easily managed
  solution
• Easy installation and implementation
• Quick and easy access to data archives
• Becoming more cost-effective
• Works with the same user interface as tape
  solutions

9
RAID Storage Systems
Redundant Array of Inexpensive Disks

• RAID Controller and multiple drives required
• RAID 0 Technique Data Striping
• Performance Very good
• Reliability poor No redundant data
• Cost Low
• RAID 1 Technique Mirroring
• Performance Slightly better than single disk
• Reliability Excellent
• Cost High Requires an extra disk for each
  disk
• RAID 5 Technique Striping and Parity
• Performance Good writes fast, reads not as fast
  as 0
• Reliability Good
• Cost High minimum of 3 disks required

10
Hardware Recovery Practices

• Backup Server off site
• Replicated weekly
• Matching components of server it replaces
• Quick and easy access in case of an emergency

11
Hardware Recovery Practices

• Additional Domain Controller on-site
• Real-time Active Directory replication
• Real-time DNS Server updates
• At least two of each Implemented into your LAN

12
Hardware Recovery Practices

• Additional Workstations on-site
• Hardware and software replica of workstation
• Keep all workstations as close to identical as
  possible

13
Hardware Recovery Practices

• Extra LAN hardware and components
• Switches / Routers
• Network Adapters
• Patch Cables

14
What is the most effective Disaster Recovery
tool?

• Prevention!

15
Prevention

• Recognize critical data
• Data and hardware that keeps you in business
• Implement all components to do the job
• Multiple layers of protection
• Firewall
• Back up devices
• On-line storage
• Off-site storage
• Backup servers and workstation
• Think about necessity, not budget

16
Test Components Regularly!

• Do not wait until the disaster strikes
• Worst time to find out your fallback plan doesnt
  work, is when you really need it!

17
Questions?