PACE-IT, Security+2.8: Disaster Recovery Concepts

Disaster recovery concepts.

Instructor, PACE-IT Program – Edmonds Community College

Areas of Expertise Industry Certifications PC Hardware Network

Administration IT Project

Management

Network Design User Training IT Troubleshooting

Qualifications Summary

Education M.B.A., IT Management, Western Governor’s University B.S., IT Security, Western Governor’s University

Entrepreneur, executive leader, and proven manger with 10+ years of experience turning complex issues into efficient and effective solutions. Strengths include developing and mentoring diverse workforces, improving processes, analyzing business needs and creating the solutions required— with a focus on technology.

Brian K. Ferrill, M.B.A.


– Disaster recovery sites.

– Data backups.

PACE-IT.

Disaster recovery sites.Disaster recovery concepts.

Disaster recovery sites.

In the business world, a disaster is any event that involves more than the day-to-day emergency response resources.

It is a fact of life that disasters will happen (e.g., an earthquake or major fire). Any event that can prevent an organization from functioning normally (or at least somewhat normally) will have a major impact on the continued existence of that business. The more time that is spent non-operational, the harder it becomes to recover from a disaster.An organization should create a disaster response plan (DRP) in order to address these situations. The DRP needs to be a comprehensive plan that covers everything from the unfortunate loss of key personnel to the loss of a critical business site.



– Cold site.» A pre-arranged location that an organization can utilize

in the case of a disaster. It is a backup space only.• No IT infrastructure is maintained in place.

» In the case of a disaster, the business moves all personnel, systems, and equipment to the site.

» It is the least expensive backup site to maintain.» It is the hardest type of backup site to bring up to

speed.

– Warm site.» A pre-arranged location that an organization can utilize

in the case of a disaster. It usually contains office space and some critical IT infrastructure components (e.g., key servers and networking equipment).

» In the case of a disaster, the business moves all personnel, systems, and other necessary equipment to the site.

» It is less expensive than a hot site and usually only requires the addition of the latest backups to get systems back up and running.

» It is more expensive than a cold site and takes more time to bring up to speed than a hot site.



– Hot site.» A pre-arranged location that an organization can utilize

in the event of a disaster. It contains a duplicate of all equipment and systems necessary to perform all critical operations.

» In the case of a disaster, only personnel need to be moved to the site before operations can proceed.

» It allows for the quickest recovery of operations.» It is the most expensive of the backup sites to create

and maintain.

– Further site categorization.» Shared site (time-shared): an alternative disaster

recovery site where the cost of maintaining the facility is split with another organization.

• May be required to share the use of the facility.» Exclusive site: an alternative disaster recovery site

where the cost of maintaining the facility is borne by a single organization.

• Will not be required to share the facility, but is more expensive than a shared site.


Data backups.Disaster recovery concepts.

Data backups.

Data plays an extremely important role in the life of organizations. They may live or die based on the data that they need to utilize.

This importance requires that data be kept and maintained safely. Without it, most organization will not be able to operate until it can be recreated. This means that data backup plans and procedures are a vital part of any DRP. Backups should be stored off site in order to safeguard against a disaster.Backups also play a key role in recovering from unexpected consequences or from the failure of a component. Backup schedules must be implemented, and periodic tests should be conducted to ensure that the backup process is working.


Data backups.

– Types of backups.» Full: all data on the targeted system is backed up.

• Slowest backup method with the highest storage requirements, but leads to the fastest recovery period.

• Recovery only requires the full backup file.» Incremental: only the new or modified files are

backed up.• Fastest backup method with the lowest storage

requirements, but leads to the slowest recovery period.

• Recovery requires the last full backup file and all of the incremental backup files.

» Differential: only data that has changed since the last full backup is saved.

• Time to backup is moderate, requires a moderate amount of storage, but also is the middle ground on the length of time for recovery.

• Recovery requires the last full backup file and the last differential backup file.


Data backups.

The configuration files of a network device should also be backed up.

Once a network device (e.g., a router or switch) has been configured and is operating as expected, a backup of the configuration files and operating system should be created.This helps to speed up the recovery time in cases of equipment failure, or when a change to the configuration has unexpected consequences.


What was covered.Disaster recovery concepts.

A disaster is any event that requires more than the normal emergency response resources. A DRP should address what is to happen if a key site succumbs to a disaster. In some situations, a backup site may be necessary. Backup sites can be categorized as being cold, warm, or hot sites. They can be further broken down by whether they are shared or exclusive sites.

Topic


Summary

Backup plans and procedures are put in place to safeguard data against loss. Backups are used to recover from failed system components or loss of data. Backups may be full, incremental, or differential in nature. Each has its own advantages and disadvantages. Network devices should have their operating systems and configuration files backed up as well.

Data backups.

THANK YOU!

This workforce solution was 100 percent funded by a $3 million grant awarded by the U.S. Department of Labor's Employment and Training Administration. The solution was created by the grantee and does not necessarily reflect the official position of the U.S. Department of Labor. The Department of Labor makes no guarantees, warranties, or assurances of any kind, express or implied, with respect to such information, including any information on linked sites and including, but not limited to, accuracy of the information or its completeness, timeliness, usefulness, adequacy, continued availability or ownership. Funded by the Department of Labor, Employment and Training Administration, Grant #TC-23745-12-60-A-53.PACE-IT is an equal opportunity employer/program and auxiliary aids and services are available upon request to individuals with disabilities. For those that are hearing impaired, a video phone is available at the Services for Students with Disabilities (SSD) office in Mountlake Terrace Hall 159. Check www.edcc.edu/ssd for office hours. Call 425.354.3113 on a video phone for more information about the PACE-IT program. For any additional special accommodations needed, call the SSD office at 425.640.1814. Edmonds Community College does not discriminate on the basis of race; color; religion; national origin; sex; disability; sexual orientation; age; citizenship, marital, or veteran status; or genetic information in its programs and activities.

PACE-IT, Security+2.8: Disaster Recovery Concepts

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