What are different NAS storage disaster recovery techniques?


Disaster recovery is the term used to describe the various strategies used to restore data. That has been lost or corrupted. With the increasing demand for network attached storage. There has been a flood of companies cropping up over the past few years.

Not one company is alike, which means disaster recovery can be a unique process for each business. However, there are still some general rules to follow when recovering from a disaster.

These NAS storage disaster recovery techniques are some of the more commonly used approaches.

NAS Snapshot replication

Snapshot replication is a disaster recovery technique. That replicates data from a primary storage device to a secondary storage device on a scheduled basis. The purpose of snapshot replication is to protect data integrity. From loss due to disk, server, or site failures.

The primary objective of implementing the snapshot feature is to minimize the risk of data loss during failures. Shutdowns or hardware replacement without resorting to RAID rebuilds.

It is the closest replication/mirroring technology to RAID without rebuilding data that guarantee almost zero downtime. However, the synchronization in this type of method is infrequent and not continuous.

Replication and data deduplication

Deduplication of data is typically coupled with data replication techniques to aid in disaster recovery. Deduplication decreases the amount of data replicated and reduces the bandwidth needed to transfer data offsite.

There are some drawbacks to this combination. Inline deduplication that occurs during data writes may affect the performance of backups. Post-process deduplication, which happens after the backup has been completed, can slow replication.

But, data deleted and then replicated off the site can be recovered more quickly than data backed up onto tapes and then stored offsite to be used in disaster recovery.

NAS storage Cloud backups

The cloud is also used with replication as it makes disaster recovery easy. It also eliminates the need to purchase and maintain an offsite storage location.

Host-based replication is usually the most suitable choice for disaster recovery using the cloud, as networks and storage arrays-based replication requires devices located at both locations. In addition, host-based replication allows you to move information from the standard servers in your system to cloud provider’s servers away from the site.

Bottom Line

Disaster recovery is a serious concern for many IT managers and storage administrators. The importance of having a disaster recovery plan cannot be stressed enough. In this age of big data, backup and recovery have become important more than ever. As each organization needs to protect its valuable data, they are likely to make sure good Disaster Recovery Techniques are in place.

Many reputed manufacturers like Stonefly offer these backup and recovery options as default in their NAS appliances. So if you are interested, do check them out.


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