What is disaster recovery? Disaster
recovery is a set of tools, policies, tools, and processes that allow
any company to restore and recover their important data after a natural or
human-initiated disaster. Disaster recovery and disaster recovery
solutions mainly focus on technology systems which are supporting key
business functions and have a critical role in business continuity. It
(disaster recovery) works to keep all important aspects of business smoothly
functional even after the occurrence of considerable disruptive events. Due to
such a key role disaster recovery is regarded as a subset of business
continuity. In a situation where it becomes impossible to recover the primary
site disaster recovery comes up with a process of data and
services restoration in a secondary survived site which is also called the disaster recovery site.
Disaster recovery site:
It's a
place through which any company can relocate itself with all of its data,
services, and everything after a natural disaster or security break. Basically,
a disaster recovery site ensures that a company can be able
to run its all operations smoothly until or unless it becomes secured to resume
work from its usual location or new stable location. There are two available
fundamental disaster recovery options: internal and external. These days mobile
and cloud-based disaster
recovery sites are gaining more and more popularity.
Key factors to consider while choosing a
disaster recovery site:
These
are a few things that any company should think about while selecting a disaster
recovery site.
●
Time slot
●
Price
●
Location
●
Required resources
Prominent techniques used in disaster recovery:
Mostly disaster recovery
solutions use these three techniques which are asynchronous replication,
synchronous replication, and mixed techniques. Here is a brief and comprehensive
description of all three techniques.
Synchronous replication:
In this
type systems and data are replicated both locally and on a secondary site. This
technique ensures business continuity, a rapid restoration process with
relatively low RPO (Regional Point Objective) and RTO (Regional Time
Objective). This method has a geographical limit, if two sites have a mutual
distance of more than 100km the synchronous couple becomes less functional and
performance is compromised.
Asynchronous replication:
This
technique of disaster recovery is far better and functional as compared to
synchronous replication because it doesn't have any distance limit and protects
your precious business data even in a situation of a large-scale disaster that
damages both sites. The other advantage which this technique has is that it can
be applied via software rather than using advanced and expensive storage
technology.
Mixed technique:
Mixed
technique not only enables us to reduce recovery time but is also effective to
make sure that services are available even in the time of expanded disasters.
It consists of replicating the system with synchronous technique on a close
site and making a second replica at a distant location. From these techniques
of disaster recovery, one can choose according to the specific needs of their
company. However, the main objective of all of them is to save your data and
make it available in the spot of disaster so that you continue your services
without any interruption.
Best Disaster recovery solutions:
DR backup and related
technologies are the most essential part of any DR solution which enables any
company to recover after facing disaster. Hence most aware companies rely on
continuous backup processes to attain better recovery point objectives which
are the amount of data loss calculated in hours or minutes by using machine or
application snapshots for recovery before disruption. Here is a brief
description of the best of the lot disaster solutions. Every DR solution from these is equipped
with DR backup and all the other
ingredients of a complete disaster solution.
N-able backup solution: This disaster recovery
solution and backup operate by using an agent installed on physical or virtual
servers. This DR backup also provides an
archiving service for long-term data storage and offers granular control on
archived data. Eventually, this archived data can assist in auditing,
compliance demonstration, and other retention objectives. Moreover, this DR solution doesn't need to
maintain a secondary data center because it stores and manages data in its
private cloud with 30 data centers in four continents. These data centers are
either ISO or SOC-compliant. Here are its other features.
●
It uses AES 256-bit data encryption to encrypt data when stored
and transferred
●
It offers custom encryption keys that are privately held by
organization or MSP which means that even N-able backup itself can't make
unencrypted your private stored data
●
N-able backup allows you to maintain standby servers with
uninterrupted restoration which is helpful to reduce downtime and to offer
quick failover.
●
It also allows replication of machines in a selected local data
center or Microsoft Azure.
Microsoft Azure: Microsoft Azure
provides Azure Backup and Azure Site Recovery which works to provide disaster
backup and disaster recovery. Azure Site Recovery assists you in backup
on-premises workloads to Azure and Azure workloads to various available zones.
In a situation of a disaster, companies can readily replicate on-premises
workloads on Azure and perform failback procedures when the primary data
centers are recovered.
●
Azure Site Recovery feature also helps to perform disaster
recovery drills without interrupting an ongoing replication process and it also
allows running failovers for expected or unexpected disruption without losing
any bit of data.
●
Azure backup allows companies to back up their data files on
different databases managed through Azure VMs.
●
It provides data storage redundancy at all levels, from local
level to zone level and performs application-consistent backups which contain
all the data required for application restoration.
Barracuda Backup: This disaster recovery solution is able to backup
data from a diversified source range which includes physical, SaaS application
sources and virtual machines such as OneDrive, SharePoint, and SQL databases.
Moreover, it offers the following solutions regarding disaster recovery.
●
Barracuda Backup Appliance is a physical tool for backups
●
Its Cloud to Cloud feature helps in managing Microsoft 365 backups
●
Barracuda Virtual backup can be used directly in the hardware of
any company.
●
Complete cloud-based management from only one console
Other notable disaster solutions are:
●
N-central solution and
N-able solution
●
Tier Point
●
Flexential DRaaS
No comments:
Post a Comment