Disaster Recovery

1
Disaster Recovery

• Mike K, Ken B

2
Preview

• What is a Disaster
• Steps of Disaster Recovery
• Companies Dealing in Recovery

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What is a Disaster

• Any Non-Planned Loss of Business Systems or Data
• Accidental Data Destruction by User
• Loss of Systems to Natural Disasters
• Flood
• Earthquake
• Fire
• System Hardware Failure
• Hard Disks

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Step One

• Know what data your company needs to maintain
  day-to-day operations
• Ask users what they need
• Databases
• Shared Network Drives
• Web Servers (E-Commerce)

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Step Two

• What types of Data Backup work best in your
  Companies Environment.
• Hardware
• Software
• In-House System
• Third Party System

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Hardware

• Redundant Array of Inexpensive Disks(RAID)
• Level 0 Provides data striping (spreading out
  blocks of each file across multiple disks) but no
  redundancy. This improves performance but does
  not deliver fault tolerance.
• Level 1 Provides disk mirroring A technique in
  which data is written to two duplicate disks
  simultaneously.
• Level 3 Same as Level 0, but also reserves one
  dedicated disk for error correction data. It
  provides good performance and some level of fault
  tolerance.
• Level 5 Provides data striping at the byte level
  and also stripe error correction information.
  This results in excellent performance and good
  fault tolerance.
• Problem With RAID IF RAID CONTROLLER FAILS ALL
  DATA IS LOST!!

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Software

• Using Software to Backup
• Backing Up to Tapes or CDs or to Other Network
  Resources
• Full Copies all Data on a regular basis
• Incremental Copies only what has been changed
  since last time back-up was run
• Hot Backup
• Real-time backup to a different location
• Note Back-Ups must be done at a time that they
  dont disrupt User Operations

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In-House System

• Back-Ups and Data Recovery done by Company
  Employees
• Must have Proper Hardware in Place
• Data to be back up needs to be completely defined
• Recoveries Not Done Consistently may lead to
  information loss when Recovery is needed

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Third Party System

• Hiring a Outside source to handle Data Back-Up
  and Recovery
• They do the Back-Up analysis to make sure all
  needed data is backed up
• Proficient when Recovery Process is needed

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Step Three

• Recovery Process
• Data Recovery Off of Back-ups
• Questions that Arise?
• Did the back-ups contain the Data needed for Day
  to Day Operations?
• When was the last Back-up done?

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Companies Dealing in Disaster Recovery

• Major Server Manufacturers have back-up
  contingency plans such as
• IBM
• Compaq
• Online Companies that offer Offsite Storage
  Capabilities
• GlobalDataVault.com

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Hardware Recovery

• If no Disaster Recovery Plan was in place, some
  companies can try and save data from Hard Drives
• Drivesavers.com
• an industry-leading success rate of 90 to
  business, government and individual clients.
• Saves Hard Drives damage
• Fire
• Water
• Crushed

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Summary

• Today we have gone over
• What a Disaster Is
• Steps in Disaster Recovery
• Companies Dealing in Disaster Recovery

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Questions

• What is a disaster?
• What is a Step in Disaster Recovery Preparation
• Name a company that deals in Disaster Recovery or
  Planning?