What is the Best Method of Disaster Recovery?

No one likes to think about failing, but for the purpose of business continuity, you must figure out the best method of data recovery in the event of a disaster. Online resources can help you learn how to make a disaster recovery plan. However, not many of them specify how to actually perform the process of disaster recovery.

Because every business is different and has slightly varying needs, the best method for disaster recovery for your company may differ from your competition’s. We’re going to take a look at a couple of methods and explain when which one is appropriate. Rest assured all these methods will work for our local Nevada businesses in both Reno and Las Vegas!

Creating a Disaster Recovery Strategy

Prior to selecting the most suitable disaster recovery approach, it’s crucial to establish a disaster recovery strategy.

To guarantee the uninterrupted operation of your business, it’s important to adhere to these recommended practices:

  • Keep a current copy of your disaster recovery plan in a convenient place in case of an emergency. Being aware of the plan’s location will assist you in initiating the process swiftly, without squandering valuable time hunting for the document.
  • Make sure your latest backups are kept in a different place, like cloud storage or another location, for safety. This ensures that the same disaster does not affect your types of backups, which can lead to longer recovery times.
  • Develop a strategy for your business to resume normal operations after a disaster
  • Regularly revise your disaster recovery strategies to accommodate changes in your business
  • Validate your strategy to ensure its effective against potential disasters in your region

Once your disaster strategy fulfills these requirements, you will be better equipped to select a recovery method that aligns with your business. You will also need to decide on a backup storage method, whether it’s a cloud-based service, local, removable storage media, or a combination of these.

Understanding Recovery Time Objective and Recovery Point Objective

Before proceeding, it’s crucial to comprehend the distinctions between recovery time objective (RTO) and recovery point objective (RPO) in disaster recovery. RTO refers to the duration required to restore your critical infrastructure following a disaster, while RPO is the interval between the disaster and your most recent backup.

When RPO is at zero, no data is lost as your system is constantly updating with the latest data versions. When RTO is at zero, there is no interruption in service – you hardly realize that your systems had a downtime initially.

Synchronous Data Replication for Disaster Recovery

If your business cannot tolerate a high RPO, synchronous data replication may be an ideal method of disaster recovery. This method copies your systems and data in two locations for extra security. It backs up the information locally and at a secondary site. Both copies of your data are written at the same time – they’re synchronized – hence the name synchronous data replication.

Generally, synchronous replications are best for businesses whose secondary storage location isn’t further than 75-100 miles because of latency and response times. However, this method of replication does ensure that your data can be saved up until the point that an outage occurs.

Asynchronous Data Replication

Asynchronous data replication doesn’t immediately replicate your data but instead stores copies of it periodically. Because the replication of data doesn’t occur in real-time, distances and bandwidth do not affect the efficiency of this method of replication.

With asynchronous replication, you may find that there is a minimal amount of data loss versus near-zero RPO with synchronous replication. Conversely, asynchronous replication will allow for near-zero RTO.

Mixed Data Replication

You may choose to use a mixed version of synchronous and asynchronous replication methods. Choosing mixed data replication for disaster recovery helps reduce data loss and downtime after a disaster occurs. Different places store data to ensure they can access it even if one location fails.

This type of storage is ideal for disaster recovery purposes because it allows you access to recent data stored by synchronous replication with the minimized downtime from asynchronous replication.

Backups and Replications: Similar, Not the Same

You’re probably wondering why in the world you’d need data replications if you have frequent backups. People often use the terms ‘backup’ and ‘replication’ incorrectly and interchangeably, which makes it understandable.

A backup is a single copy of your systems and data. Replication allows you to make several copies of your data center backups and store them in various locations.

For many businesses, a simple yet frequent system and data backup are sufficient to protect against disasters. Consider making copies of backups to prevent data loss from malware, natural disasters, or terrorist attacks. Replicating backups can help protect your information in case of an emergency.

Your Disaster Planning w/ Help

When creating a disaster recovery plan, consider the types of disasters your business could encounter. Think about how these disasters could affect your data and your ability to use your systems. Think about these factors to determine if regular backups are sufficient for your data’s protections. You may need improved protection through updated backup software or data replication.

You understand potential disasters, but you may not know how they will affect your system, data, or recovery process. Being prepared for different scenarios that could disrupt your operations is important.

iTernal Networks offers disaster recovery planning services based on best practices. These services are designed to help your business keep running after a major event. We can help you choose the best disaster recovery method. We will tailor your plans to your needs.

If you’re still uncertain about which method of disaster recovery is best for you or to build a solid disaster recovery plan with knowledgeable IT professionals, contact us today for a no-strings-attached consultation!

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