Disaster recovery is a set of tools and policies that helps restore mission-critical data, applications, and hardware to ensure business continuity in case of a sudden IT incident, which can occur for various reasons. Since IT disasters can lead to revenue and productivity loss, it becomes increasingly evident that disaster recovery is necessary.
Sin embargo, muchos consideran que la recuperación ante desastres es un proceso labor-intensive and time-consuming process. Indeed, creating a DR plan, outlining a disaster recovery strategy, establishing data replication, failover/failback testing, and keeping the entire system up-to-date is difficult and expensive, so companies must compromise between cost and performance when choosing a proper disaster recovery method.
There are numerous disaster recovery scenarios, for instance, cold site, hot site, virtualization, data center DR, point-in-time copies, instant recovery, and many more, each with its properties and capabilities. But many organizations opt for cloud-based DRaaS (Disaster Recovery as a Service), which is rich with enterprise functionality and is available at a reasonable cost. Moreover, DRaaS makes DR incredibly easy to use and set up, even for non-professionals.
¿Qué es la recuperación ante desastres como servicio (DRaaS)?
Al igual que el software como servicio (SaaS) o la plataforma como servicio (PaaS), la recuperación ante desastres como servicio es un servicio informático basado en la nube que es brindado por un determinado proveedor gestionado por terceros. En este caso, se hace una copia de seguridad de tus datos y se almacenan en un centro de datos remoto al que no se puede acceder sin autenticación.
Con el DRaaS, un proveedor de la nube garantiza la replicación de los servidores virtuales a un sitio remoto con la posibilidad de un despliegue posterior en caso de desastre. En esencia, esto significa que una copia actualizada de cada servidor protegido está presente en la nube; y si la infraestructura del cliente deja de funcionar, estas copias se iniciarán allí mismo, normalmente en cuestión de minutos, y seguirán funcionando.
Dado que el DRaaS aprovecha los recursos basados en la nube, da lugar a una gran flexibilidad y escalabilidad, además de facilitar el proceso de copia de seguridad y RD. El enfoque "como servicio" significa que el proveedor de DRaaS es el responsable del proceso de backup y recuperación en lugar de tu departamento de TI interno. En definitiva, las ventajas de la DRaaS son muchas, así que vamos a considerar las más destacadas en detalle.
Principales ventajas de la recuperación ante desastres como servicio (DRaaS)
1. Ahorro de costos
First and foremost, the main advantage of using DRaaS is undoubtedly cost savings. Should an organization decide to deploy a similar infrastructure by itself, it will inevitably need to purchase hardware capacities and software licenses to organize the backup site and network connectivity with the central part of the infrastructure. At the same time, the load on the company’s IT department will also increase since the remote site will require administration. For many companies with just a few business-critical applications running on a single host, deploying their disaster recovery infrastructure will be too costly. In the case of using DRaaS, all these worries will fall on the shoulders of the cloud provider.
En general, la DRaaS elimina la necesidad de los siguientes costos:
- Alquiler de locales para un centro de datos auxiliar.
- Monthly maintenance costs include power supply, HVAC (intended for cooling equipment), and Internet access.
- Compra o alquiler de hardware: servidores, almacenamiento, equipos de red.
- Employee salaries and travel expenses for servicing the auxiliary data center.
2. Facilidad de uso
As you already know, building and maintaining your disaster recovery site can be too complex and costly. The same holds for configuration and testing backup and recovery processes, too. You can forget about high administrative and maintenance requirements by getting rid of all of this infrastructure on your side and getting access to a dashboard that automates most of the functions and tools included in the DRaaS solution.
3. Backups frecuentes y recuperación rápida
DRaaS automatically backs up data to the cloud with some frequency and recovers the backup data in an emergency. RPO (recovery point objective) and RTO (recovery time objective) values accordingly define backup frequency and recovery speed. The lower these values, the higher your company’s IT resilience will be. On the other hand, you should be aware that close to zero RTO and RPO imply high costs, so you need to find optimal values by figuring out the potential monetary loss due to a system outage.
4. Seguridad de los datos
As we already mentioned, with DRaaS, your data is securely backed up and stored in a remote data center. This means that the data will be protected against unexpected loss and unauthorized access.
Nowadays, cloud-based service providers employ reliable security protocols, sophisticated encryption, and regular and timely security patches to protect their data centers with your data stored within — you’ll never be able to achieve that security level when keeping your data on your premises. Cloud providers also use private clouds and multi-factor authentication protocols to make your data virtually invulnerable.
5. Independencia de plataformas
DRaaS solutions work with different systems, so you can, for instance, run virtual servers with other hypervisors and replicate data between various storage systems and clouds, which makes DRaaS hypervisor-, hardware-, and application-agnostic.
Again, since Disaster Recovery as a Service is a cloud-based solution, your system will be accessible from any location with an internet connection. In some dire situations (like the coronavirus lockdown) that make your physical office space unavailable, you can still manage your remote servers from literally any location.
But still, DRaaS, with its remote servers, doesn’t mean you lose control of your IT infrastructure. On the contrary, you and your IT engineers team will still be able to manage applications and data storage, run and analyze reports, run backups, and recover lost data by yourselves.
7. Experiencia informática externa
As soon as you choose a DRaaS solution, you’ll get help and guidance from field experts employed at disaster recovery service providers – data safety, cloud backup, and disaster recovery is their primary area of expertise. So if a problem arises, reliable providers will help you easily overcome it. One more thing is that your in-house specialists don’t necessarily have to be proficient at disaster recovery since your service provider becomes the one who is responsible for hardware-related data protection.
La recuperación ante desastres como servicio (DRaaS) frente al backup como servicio (BaaS)
Backup as a Service is deemed by many business owners and IT specialists as another great solution that helps minimize the negative impact of an IT disaster. However, there’s a significant difference between BaaS and DRaaS, which is often overlooked. Put, Backup as a Service protects data, while Disaster Recovery as a Service protects applications, data, and the whole infrastructure. Thus, BaaS is just a subset of DRaaS with limited functionality. DRaaS incorporates compute services so that it ensures application continuity in addition to the data backup services. Unlike BaaS, DRaaS has features that enable the orchestration of failover, failback, and testing. BaaS requires more manual interventions and, subsequently, more effort and IT expertise from your in-house team members to work correctly.
Find more information about cloud backup vs. disaster recovery: their detailed description and comparison, and our tips on how to choose a more suitable cloud service for your company → https://hystax.com/cloud-backup-vs-disaster-recovery-what-do-you-need
Due to the rising trend in IT disasters and the increasing user intolerance towards service outages, disaster recovery has become widespread and has proven effective. Disaster Recovery as a Service (DRaaS) stands out favorably against other disaster recovery scenarios because it provides access to the essential tools required to maintain business continuity for most organizations, even those with a limited budget. In addition, DRaaS has all the benefits of cloud-based technology: scalability, flexibility, and many others.