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Three Disaster Recovery Methods for Disaster Recovery

By CIO Applications| Monday, February 08, 2021
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Every business operates differently and has different requirements. Therefore, it is crucial to choose a disaster recovery method that fits your company's needs.

Fremont, CA: Before choosing the right disaster recovery, it is crucial to have a disaster recovery plan in place. It is also important to understand the difference between recovery time objective (RTO) and recovery point objective (RPO) in disaster recovery. RTO is how long it takes to get the vital infrastructure up and running after a disaster. RPO is the timeframe between the disaster and the last backup. When RPO is zero, there is no data loss since the system is regularly backing up the latest versions of data. When RTO is zero, there is no downtime.

Here are three disaster recovery methods for disaster recovery:

Asynchronous Data Replication

Asynchronous data replication stores copies of data periodically instead of instantly replicating it. Distances and bandwidth do not impact the method's efficiency because the data replication does not happen in real-time.

There is less amount of data loss in asynchronous replication compared to near-zero RPO with synchronous replication. On the contrary, this method of replication allows for near-zero RTO.

Check This Out: Top Disaster Recovery  Consulting Companies

Mixed Data Replication

A mixed replication of data as a disaster recovery method enables users to reduce data loss and downtime after a disaster by storing data replications at geographically close secondary sites and at a further location.

This method is ideal for disaster recovery purposes as it enables users to access recent data stored by synchronous replication with less downtime from asynchronous replication.

Synchronous Data Replication for Disaster Recovery

Synchronous data replication is a suitable method of disaster recovery for businesses that cannot tolerate a high RPO. This method ensures that the system and data are backed up locally and at a secondary site. Both copies of the data are written simultaneously as they are synchronized.

Synchronous replication is suitable for businesses whose secondary location is not more than 75-100 miles because of latency and response times. But this method of replication saves data up until an outage occurs.

 

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